standard speciﬁcation for aluminum-alloy sand castings1...1.5 for acceptance criteria for...

Designation: B 26/B 26M – 03

Standard Specification forAluminum-Alloy Sand Castings1

This standard is issued under the fixed designation B 26/B 26M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

This standard has been approved for use by agencies of the Department of Defense.

1. Scope*

1.1 This specification2 covers aluminum-alloy sand castingsdesignated as shown in Table 1.

1.2 This specification is not intended for aluminum-alloysand castings used in aerospace applications.

1.3 Alloy and temper designations are in accordance withANSI H35.1 and H35.1M. Unified Numbering System alloydesignations are in accordance with Practice E 527.

1.4 Unless the order specifies the “M” specification desig-nation, the material shall be furnished to the inch-pound units.

1.5 For acceptance criteria for inclusion of new aluminumand aluminum alloys and their properties in this specification,see Annex A1 and Annex A2.

1.6 The values stated in either inch-pound units or SI unitsare to be regarded separately as standards. The SI units areshown in brackets or in separate tables or columns. The valuesstated in each system are not exact equivalents; therefore, eachsystem must be used independent of the other. Combiningvalues from the two systems may result in nonconformancewith the specification.

1.7 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applicabil-ity of regulatory limitations prior to use.

2. Referenced Documents

2.1 The following documents of the issue in effect on dateof material purchase form a part of this specification to theextent referenced herein:

2.2 ASTM Standards:B 179 Specification for Aluminum Alloys in Ingot and

Molten Forms for Castings from All Casting Processes3

B 275 Practice for Codification of Certain Nonferrous Met-als and Alloys, Cast and Wrought3

B 557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy Products3

B 557M Test Methods for Tension Testing Wrought andCast Aluminum- and Magnesium-Alloy Products [Metric]3

B 660 Practices for Packaging/Packing of Aluminum andMagnesium Products3

B 881 Terminology Relating to Aluminum- andMagnesium-Alloy Products3

B 917/B 917M Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes3

D 3951 Practice for Commercial Packaging4

E 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications5

E 34 Test Methods for Chemical Analysis of Aluminum andAluminum Base-Alloys6

E 88 Practice for Sampling Nonferrous Metals and Alloysin Cast Form for Determination of Chemical Composition6

E 94 Guide for Radiographic Testing7

E 155 Reference Radiographs for Examination of Alumi-num and Magnesium Castings7

E 165 Test Method for Liquid Penetrant Examination7

E 527 Practice for Numbering Metals and Alloys (UNS)8

E 607 Test Method for Optical Emission SpectrometricAnalysis of Aluminum and Aluminum Alloys by thePoint-to-Plane Technique, Nitrogen Atmosphere6

E 716 Practices for Sampling Aluminum and AluminumAlloys for Spectrochemical Analysis6

E 1251 Test Method for Optical Emission SpectrometricAnalysis of Aluminum and Aluminum Alloys by the ArgonAtmosphere, Point-to-Plane, Unipolar Self-Initiating Ca-pacitor Discharge6

IEEE/ASTM SI 10 Standard for Use of the InternationalSystem of Units (SI): The Modern Metric System5

2.3 AMS Standard:AMS 2771 Heat Treatment of Aluminum Alloy Castings 9

2.4 American National Standards:

1 This specification is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.01 onAluminum Alloy Ingots and Castings.

Current edition approved Apr. 10, 2003. Published September 2003. Originallyapproved in 1918. Last previous edition approved in 2002 as B 26/B 26M – 02.

2 For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-26/SB-26M in Section II of that Code.

3 Annual Book of ASTM Standards, Vol 02.02.

4 Annual Book of ASTM Standards, Vol 15.09.5 Annual Book of ASTM Standards, Vol 14.02.6 Annual Book of ASTM Standards, Vol 03.05.7 Annual Book of ASTM Standards, Vol 03.03.8 Annual Book of ASTM Standards, Vol 01.01.9 Available from Society of Automotive Engineers (SAE), 400 Commonwealth

Dr., Warrendale, PA 15096-0001.

1

*A Summary of Changes section appears at the end of this standard.

Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.

H35.1 Alloy and Temper Designation System for Alumi-num10

H35.1M Alloy and Temper Designation System for Alumi-num [Metric]10

2.5 Military Standards:MIL-STD-129 Marking for Shipment and Storage11

MIL-STD-276 Impregnation of Porous Nonferrous MetalCastings11

NAVSEA Technical Publication S9074-AR-GIB-010/27811

2.6 Federal Standard:FED. STD. No. 123 Marking for Shipment (Civil Agen-

cies)11

3. Terminology

3.1 Definitions—Refer to Terminology B 881 for definitionsof product terms used in this specification.

3.2 sand casting—a metal object produced by pouringmolten metal into a sand mold and allowing it to solidify.

4. Ordering Information

4.1 Orders for material under this specification shall includethe following information (1.4 and 1.5):

4.1.1 This specification designation (which includes thenumber, year, and revision letter, if applicable),

NOTE 1—For inch-pound application, specify Specification B 26 andfor metric application specify Specification B 26M. Do not mix units.

4.1.2 The quantity in either pieces or pounds [kilograms].4.1.3 Alloy (Section 7 and Table 1),4.1.4 Temper (Section 12 and Table 2),4.1.5 Applicable drawing or part number,4.2 Additionally, orders for material to this specification

shall include the following information when required by thepurchaser:

4.2.1 Whether chemical analysis and tensile property re-ports are required (Table 1 and Table 2),

4.2.2 Whether castings or test bars, or both, may be artifi-cially aged for Alloys 705.0-T5, 707.0-T5, 712.0-T5 and713.0-T5 (12.2) and whether yield strength tests are requiredfor these alloys,

4.2.3 Whether test specimens cut from castings are requiredin addition to or instead of separately cast specimens (Sections12 and 15),

4.2.4 Whether repairs are permissible (18.1),

10 Annual Book of ASTM Standards, Vol 02.02, in the Related Material section(gray pages).

11 Available from Standardization Documents, Order Desk, Bldg. 4, Section D,700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.

TABLE 1 Chemical Composition Limits

NOTE 1—When single units are shown, these indicate the maximum amounts permitted.NOTE 2—Analysis shall be made for the elements for which limits are shown in this table.NOTE 3—The following applies to all specified limits in this table: For purposes of determining conformance to these limits, an observed value or a

calculated value obtained from analysis shall be rounded to the nearest unit in the last right-hand place of figures used in expressing the specified limitin accordance with the rounding method of Practice E 29.

Alloy

Aluminum

Composition, (Values in Weight Percent) Others

ANSI UNS Silicon Iron CopperMan-

ganeseMagne-

siumChromium Nickel Zinc Tin Titanium Each Total

201.0 A02010 remainder 0.10 0.15 4.0–5.2 0.20–0.50 0.15–0.55 ... ... ... ... 0.15–0.35 0.05A 0.10204.0 A02040 remainder 0.20 0.35 4.2–5.0 0.10 0.15–0.35 ... 0.05 0.10 0.05 0.15–0.30 0.05 0.15242.0 A02420 remainder 0.7 1.0 3.7–4.5 0.35 1.2–1.8 0.25 1.7–2.3 0.35 ... 0.25 0.05 0.15A242.0 A12420 remainder 0.6 0.8 3.7–4.5 0.10 1.2–1.7 0.15–0.25 1.8–2.3 0.10 ... 0.07–0.20 0.05 0.15295.0 A02950 remainder 0.7–1.5 1.0 4.0–5.0 0.35 0.03 ... ... 0.35 ... 0.25 0.05 0.15319.0 A03190 remainder 5.5–6.5 1.0 3.0–4.0 0.50 0.10 ... 0.35 1.0 ... 0.25 ... 0.50328.0 A03280 remainder 7.5–8.5 1.0 1.0–2.0 0.20–0.6 0.20–0.6 0.35 0.25 1.5 ... 0.25 ... 0.50355.0 A03550 remainder 4.5–5.5 0.6B 1.0–1.5 0.50B 0.40–0.6 0.25 ... 0.35 ... 0.25 0.05 0.15C355.0 A33550 remainder 4.5–5.5 0.20 1.0–1.5 0.10 0.40–0.6 ... ... 0.10 ... 0.20 0.05 0.15356.0 A03560 remainder 6.5–7.5 0.6B 0.25 0.35B 0.20–0.45 ... ... 0.35 ... 0.25 0.05 0.15A356.0 A13560 remainder 6.5–7.5 0.20 0.20 0.10 0.25–0.45 ... ... 0.10 ... 0.20 0.05 0.15443.0 A04430 remainder 4.5–6.0 0.8 0.6 0.50 0.05 0.25 ... 0.50 ... 0.25 ... 0.35B443.0 A24430 remainder 4.5–6.0 0.8 0.15 0.35 0.05 ... ... 0.35 ... 0.25 0.05 0.15512.0 A05120 remainder 1.4–2.2 0.6 0.35 0.8 3.5–4.5 0.25 ... 0.35 ... 0.25 0.05 0.15514.0 A05140 remainder 0.35 0.50 0.15 0.35 3.5–4.5 ... ... 0.15 ... 0.25 0.05 0.15520.0 A05200 remainder 0.25 0.30 0.25 0.15 9.5–10.6 ... ... 0.15 ... 0.25 0.05 0.15535.0 A05350 remainder 0.15 0.15 0.05 0.10–0.25 6.2–7.5 ... ... ... ... 0.10–0.25 0.05C 0.15705.0 A07050 remainder 0.20 0.8 0.20 0.40–0.6 1.4–1.8 0.20–0.40 ... 2.7–3.3 ... 0.25 0.05 0.15707.0 A07070 remainder 0.20 0.8 0.20 0.40–0.6 1.8–2.4 0.20–0.40 ... 4.0–4.5 ... 0.25 0.05 0.15710.0D A07100 remainder 0.15 0.50 0.35–0.65 0.05 0.6–0.8 ... ... 6.0–7.0 ... 0.25 0.05 0.15712.0D A07120 remainder 0.30 0.50 0.25 0.10 0.50–0.65 0.40–0.6 ... 5.0–6.5 ... 0.15–0.25 0.05 0.20713.0 A07130 remainder 0.25 1.1 0.40–1.0 0.6 0.20–0.50 0.35 0.15 7.0–8.0 ... 0.25 0.10 0.25771.0 A07710 remainder 0.15 0.15 0.10 0.10 0.8–1.0 0.06–0.20 ... 6.5–7.5 ... 0.10–0.20 0.05 0.15850.0 A08500 remainder 0.7 0.7 0.7–1.3 0.10 0.10 ... 0.7–1.3 ... 5.5–7.0 0.20 ... 0.30851.0D A08510 remainder 2.0–3.0 0.7 0.7–1.3 0.10 0.10 ... 0.30–0.7 ... 5.5–7.0 0.20 ... 0.30852.0D A08520 remainder 0.40 0.7 1.7–2.3 0.10 0.6–0.9 ... 0.9–1.5 ... 5.5–7.0 0.20 ... 0.30

A Contains silver 0.40–1.0 %.B If iron exceeds 0.45 %, manganese content shall not be less than one half of the iron content.C Contains beryllium 0.003–0.007 %, boron 0.005 % max.D 710.0 formerly A712.0, 712.0 formerly D712.0, 851.0 formerly A850.0, 852.0 formerly B850.0.

B 26/B 26M – 03

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4.2.5 Whether inspection is required at the producer’sworks (Section 20),

4.2.6 Whether certification is required (23.1),4.2.7 Whether surface requirements shall be checked

against observational standards where such standards areestablished (21.1),

4.2.8 Whether liquid penetrant inspection is required (21.2),4.2.9 Whether radiographic inspection is required (21.3),

and4.2.10 Whether foundry control is required (Section 11).4.2.11 Whether Practice B 660 applies and, if so, the levels

of preservation, packaging and packing required (25.4).

5. Quality Assurance

5.1 Unless otherwise specified in the contract or purchaseorder, the producer shall be responsible for the performance ofall inspections and test requirements specified herein. Unlessdisapproved by the purchaser, the producer may use his own orany other suitable facilities for the performance of the inspec-tion and test requirements specified herein. The purchaser shallhave the right to perform any of the inspections and tests setforth in this specification where such inspections are deemednecessary to confirm that the material conforms to prescribedrequirements.

TABLE 2 Tensile RequirementsA (Inch-Pound Units)

NOTE 1—For purposes of determining conformance with this specification, each value for tensile strength and yield strength shall be rounded to thenearest 0.1 ksi and each value for elongation shall be rounded to the nearest 0.5 % , both in accordance with the rounding method of Practice E 29.

AlloyTemperB

Tensile Strength,min, ksi

Yield Strength(0.2 % offset),

min, ksi

Elongation in2 in. or 4 x

diameter, min, %

Typical Brinell Hard-ness,C 500 kgf, 10

mmANSID UNS

201.0 A02010 T7 60.0 50.0 3.0 ...204.0 A02040 T4 45.0 28.0 6.0 ...242.0 A02420 OE 23.0 F F 70

T61 32.0 20.0 F 105A242.0 A12420 T75 29.0 F 1.0 75295.0 A02950 T4 29.0 13.0 6.0 60

T6 32.0 20.0 3.0 75T62 36.0 28.0 F 95T7 29.0 16.0 3.0 70

319.0 A03190 FT5T6

23.025.031.0

13.0F

20.0

1.5F

1.5

708080

328.0 A03280 FT6

25.034.0

14.021.0

1.01.0

6080

355.0 A03550 T6T51T71

32.025.030.0

20.018.022.0

2.0F

F

806575

C355.0 A33550 T6 36.0 25.0 2.5 ...356.0 A03560 F 19.0 9.5 2.0 55

T6 30.0 20.0 3.0 70T7 31.0 F F 75T51 23.0 16.0 F 60T71 25.0 18.0 3.0 60

A356.0 A13560 T6T61

34.035.0

24.026.0

3.51.0

80...

443.0 A04430 F 17.0 7.0 3.0 40B443.0512.0

A24430A05120

FF

17.017.0

6.010.0

3.0...

4050

514.0 A05140 F 22.0 9.0 6.0 50520.0 A05200 T4 42.0 22.0 12.0 75535.0 A05350 F 35.0 18.0 9.0 70705.0 A07050 T5 30.0 17.0G 5.0 65707.0 A07070 T7 37.0 30.0G 1.0 80710.0H A07100 T5 32.0 20.0 2.0 75712.0H A07120 T5 34.0 25.0G 4.0 75713.0 A07130 T5 32.0 22.0 3.0 75771.0 A07710 T5 42.0 38.0 1.5 100

T51 32.0 27.0 3.0 85T52 36.0 30.0 1.5 85T6 42.0 35.0 5.0 90T71 48.0 45.0 2.0 120

850.0 A08500 T5 16.0 F 5.0 45851.0H A08510 T5 17.0 F 3.0 45852.0H A08520 T5 24.0 18.0 F 60

A If agreed upon between the manufacturer and the purchaser, other mechanical properties may be obtained by other heat treatments such as annealing, aging, or stressrelieving.

B Refer to ANSI H35.1 and/or H35.1M for description of tempers.C For information only, not required for acceptance.D ASTM alloy designations are recorded in Practice B 275.E Formerly designated as 222.0-T2 and 242.0-T21.F Not required.G Yield strength to be determined only when specified in the contract or purchase order.H 710.0 formerly A712.0, 712.0 formerly D712.0, 851.0 formerly A850.0, 852.0 formerly B850.0.

B 26/B 26M – 03

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6. Manufacture

6.1 The responsibility of furnishing castings that can be laidout and machined to the finished dimensions within thepermissible variations specified, as shown on the blueprints ordrawings, shall rest with the producer, except where patternequipment is furnished by the purchaser.

7. Chemical Composition

7.1 The castings shall conform to the chemical compositionlimits prescribed in Table 1. Conformance shall be determinedby the producer by analyzing samples taken at the time thecastings are poured, or samples taken from castings or tensiontest specimens representative of castings. If the producer hasdetermined the chemical composition of the material during thecourse of manufacture, he shall not be required to sample andanalyze the finished product.

8. Sampling

8.1 A sample for determining of chemical composition shallbe taken to represent the following:

8.1.1 Not more than 2000 lb [1000 kg] of clean castings(gates and risers removed) or a single casting poured from onefurnace.

8.1.2 Castings poured continuously from one furnace fornot more than 8 consecutive hours.

8.2 Samples for determination of chemical compositionshall be taken in accordance with one of the followingmethods:

8.2.1 Samples for Chemical Analysis— Samples for chemi-cal analysis shall be in accordance with Practice E 88 exceptthat the weight of a prepared sample shall be not less than 75g.

8.2.2 Samples for Spectrochemical and Other Methods ofAnalysis—Sampling for spectrochemical analysis shall be inaccordance with Practices E 716. Samples for other methods ofanalysis shall be suitable for the form of material beinganalyzed and the type of analytical methods used.

9. Methods for Determination of Chemical Composition

9.1 The determination of chemical composition shall bemade in accordance with suitable chemical (Test MethodsE 34) or spectrochemical (Test Methods E 607 and E 1251)methods. Other methods may be used only when no publishedASTM method is available. In case of dispute, the method ofanalysis shall be agreed upon by the producer and the pur-chaser.

10. Material Requirements—Castings Produced forGovernmental and Military Agencies

10.1 Unless otherwise specified, only aluminum alloy con-forming to the requirements of Specification B 179 or produc-er’s foundry scrap (identified as being made from alloyconforming to Specification B 179) shall be used in theremelting furnace from which molten metal is taken forpouring directly into castings. Additions of small amounts ofmodifiers and grain refining elements or alloys are permitted.

10.1.1 Pure materials, recycled materials, and master alloysmay be used to make alloys conforming to this specification,

provided chemical analysis can be taken and adjusted toconform to Table 1 prior to pouring any castings.

11. Foundry Control—Castings Produced forGovernmental and/or Military Agencies

11.1 When specified, castings shall be produced underfoundry control approved by the purchaser. Foundry controlshall consist of examination of castings by radiographic orother approved methods for determining internal discontinui-ties until the gating, pouring, and other foundry practices havebeen established to produce castings meeting the qualitystandards furnished by the purchaser or agreed upon betweenthe purchaser and the producer. When foundry practices havebeen so established, the production method shall not besignificantly changed without demonstrating to the satisfactionof the purchaser that the change does not adversely affect thequality of the castings. Minor changes in pouring temperatureof 650°F [628°C] from the established nominal temperatureare permissible.

12. Tensile Properties

12.1 The separately cast test specimens representing thecastings shall meet the mechanical properties prescribed inTable 2.

12.2 Although Alloys 705.0, 707.0, 712.0, and 713.0 aremost frequently used in the naturally aged condition, byagreement between the producer and the purchaser, the cast-ings may be artificially aged to the T5 temper. The producerand the purchaser may also agree to base the acceptance ofcastings on artificially aged test bars. The conditions ofartificial aging shown in Practice B 917/B 917M shall beemployed unless other conditions are accepted by mutualconsent.

12.3 When specified, the tensile strength, yield strength, andelongation values of specimens cut from castings shall be notless than 75 % of the tensile and yield strength values and notless than 25 % of the elongation values specified in Table 2[Table 3]. The measurement of the elongation is not requiredfor test specimens cut from castings if 25 % of the specifiedminimum elongation value published in Table 2 [Table 3] is 0.5% or less. If grade D quality castings as described in Table 4are specified, no tensile tests shall be specified nor tensilerequirements be met on specimens cut from castings.

13. Workmanship, Finish, and Appearance

13.1 The finished castings shall be uniform in compositionand free of blowholes, cracks, shrinks, and other discontinui-ties except as designated and agreed upon as acceptable by thepurchaser.

14. Number of Tests and Retests

14.1 Unless otherwise agreed upon between the purchaserand producer, a minimum of two tension test specimens shallbe separately cast and tested to represent the following:

14.1.1 Not more than 4000 lb [2000 kg] of clean castings(gates and risers removed) or a single casting poured from onefurnace.

14.1.2 The castings poured continuously from one furnacein not more than eight consecutive hours.

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TABLE 3 Tensile Requirements (SI Units)—[Metric]A

NOTE 1—For purposes of determining conformance with this specification, each value for tensile strength and yield strength shall be rounded to thenearest 1 MPa and each value for elongation shall be rounded to the nearest 0.5 %, both in accordance with the rounding method of Practice E 29.

AlloyTemperB

Tensile Strength,min, MPaC


min, MPaC

Elongation in53 diameter,

min %

Typical BrinellHardness,D

500 kgf, 10 mmANSIE UNS

201.0 A02010 T7 415 345 3.0 ...204.0 A02040 T4 310 195 6.0 ...242.0 A02420 OF 160 G G 70

T61 220 140 G 105A242.0 A12420 T75 200 G 1.0 75295.0 A02950 T4 200 90 6.0 60

T6 220 140 3.0 75T62 250 195 G 95T7 200 110 3.0 70

319.0 A03190 F 160 90 1.5 70T5 170 G G 80T6 215 140 1.5 80

328.0 A03280 F 170 95 1.0 60T6 235 145 1.0 80

355.0 A03550 T6 220 140 2.0 80T51 170 125 G 65T71 205 150 G 75

C355.0 A33550 T6 250 170 2.5 ...356.0 A03560 F 130 65 2.0 55

T6 205 140 3.0 70T7 215 G G 75

T51 160 110 G 60T71 170 125 3.0 60

A356.0 A13560 T6 235 165 3.5 80T61 245 180 1.0 ...

443.0 A04430 F 115 50 3.0 40B443.0 A24430 F 115 40 3.0 40512.0 A05120 F 115 70 ... 50514.0 A05140 F 150 60 6.0 50520.0 A05200 T4 290 150 12.0 75535.0 A05350 F 240 125 9.0 70705.0 A07050 T5 205 115H 5.0 65707.0 A07070 T7 255 205H 1.0 80710.0I A07100 T5 220 140 2.0 75712.0I A07120 T5 235 170H 4.0 75713.0 A07130 T5 220 150 3.0 75771.0 A07710 T5 290 260 1.5 100

T51 220 185 3.0 85T52 250 205 1.5 85T6 290 240 5.0 90T71 330 310 2.0 120

850.0 A08500 T5 110 G 5.0 45851.0I A08510 T5 115 G 3.0 45852.0I A08520 T5 165 125 G 60

A If agreed upon between the manufacturer and the purchaser, other mechanical properties may be obtained by other heat treatments such as annealing, aging, or stressrelieving.

B Temper designations:F As fabricated.O Annealed.T1 Cooled from an elevated temperature shaping process and naturally aged to a substantially stable condition.T4 Solution heat-treated and naturally aged to a substantially stable condition.T5 Cooled from an elevated temperature shaping process and then artificially aged.T6 Solution heat-treated and then artificially aged.T7 Solution heat-treated and stabilized.

Additional digits, the first of which shall not be zero, may be added to designation T1 through T10 to indicate a variation in treatment that significantly alters thecharacteristics of the product.

C For explanation of the SI unit “MPa” see Appendix X2.D For information only, not required for acceptance.E ASTM alloy designations are recorded in Practice B 275.F Formerly designated as 222.0-T2 and 242.0-T21.G Not required.H Yield strength to be determined only when specified in the contract or purchase order.I 710.0 formerly A712.0, 712.0 formerly D712.0, 851.0 formerly A850.0, 852.0 formerly B850.0.

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14.2 When tensile properties from castings are to be deter-mined, one per melt-heat combination shall be tested unlessotherwise shown on the drawing or specified in the purchaseorder.

14.3 If any test specimen shows defective machining orflaws, it may be discarded; in which case the purchaser and theproducer shall agree upon the selection of another specimen inits stead.

14.4 If the results of the tension tests do not conform to therequirements prescribed in Table 2 [Table 3]; the test barsrepresentative of the castings may be retested in accordancewith the replacement tests and retest provisions of TestMethods B 557 and B 557M, and the results of retests shallconform to the requirements as to mechanical propertiesspecified in Table 2 [Table 3].

15. Specimen Preparation

15.1 The tension test specimens shall be cast to size in sandwithout chills in accordance with the dimensions shown in Fig.1 [Fig. 2]. They shall not be machined prior to test except toadapt the grip ends in such a manner as to ensure axial loading.

15.2 The recommended method for casting tension testspecimens is shown in Fig. 1 [Fig. 2].

15.3 When properties of castings are to be determined,tension test specimens shall be cut from the locations desig-nated on the drawing, unless otherwise negotiated. If nolocations are designated, one or more specimens shall be takento include locations having significant variation in castingthickness, except that specimens shall not be taken from areasdirectly under risers. The tension test specimens shall be thestandard 0.500-in. [12.5-mm] diameter specimens shown inFig. 8 of Test Methods B 557 and B 557M or a round specimenof smaller size proportional to the standard specimen. In nocase shall the dimensions of the smallest specimen be less thanthe following:

TABLE 4 Discontinuity-Level Requirements for Aluminum Sand Castings (Reference Radiographs E 155)

Discontinuity Radiograph

Section Thickness in. [mm]

Grade AA Grade B Grade C Grade D

1⁄4 [6.4] 3⁄4 [19.0] 1⁄4 [6.4] 3⁄4 [19.0] 1⁄4 [6.4] 3⁄4 [19.0] 1⁄4 [6.4] 3⁄4 [19.0]

Gas holes 1.1 none 1 1 2 2 5 5Gas porosity (round) 1.21 none 1 1 3 3 7 7Gas porosity (elongated) 1.22 none 1 1 3 4 5 5Shrinkage cavity 2.1 none 1 B 2 B 3 B

Shrinkage porosity or sponge 2.2 none 1 1 2 2 4 3Foreign material (less dense material) 3.11 none 1 1 2 2 4 4Foreign material (more dense material) 3.12 none 1 1 2 1 4 3Segregation 3.2 none none none noneCracks ... none none none noneCold shuts ... none none none noneSurface irregularity ... ... not to exceed drawing toleranceCore shift ... ... not to exceed drawing tolerance

A Caution should be exercised in requesting Grade A.B Not available.

NOTE 1—1 in. = 25.4 mm.FIG. 1 Tension Test Specimen Casting

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in. mm

Diameter of reduced section 0.250 6.00Length of reduced section 11⁄4 36Gage length 1.000 30.00Radius of fillet 3⁄16 6Diameter of end section 3⁄8 9Overall length:

With shouldered ends 23⁄8 60With threaded ends 3 75With plain cylindrical ends 4 100

When necessary, a rectangular specimen may be usedproportional to that shown for the 0.500-in. [12.5-mm] widespecimen in Fig. 6 of Test Methods B 557 and B 557M, but inno case shall its dimensions be less than the following:

in. mm

Width of reduced section 1⁄4 6.00Length of reduced section 11⁄4 32Radius of fillet 1⁄4 6Overall length 4 100Thickness 0.100 2.50

The specific elongation values shall not apply to tests ofrectangular specimens.

15.4 If the castings are to be heat treated and separately castspecimens are to be used, the specimens representing suchcastings shall be heat treated with the castings they represent.If castings are to be heat treated and tests are to be obtained onthe castings, the test specimens shall be taken from the castingsafter heat treatment.

16. Test Methods16.1 The determination of chemical composition shall be

made in accordance with suitable chemical (Test Methods

E 34), or spectrochemical (Test Methods E 607 and E 1251),methods. Other methods may be used only when no publishedASTM method is available. In case of dispute, the methods ofanalysis shall be agreed upon between the producer andpurchaser.

16.2 The tensile properties shall be determined in accor-dance with Test Methods B 557 and B 557M.

17. Heat Treatment

17.1 Heat treatment of castings shall be performed inaccordance with Practice B 917/B 917M or AMS 2771.

18. Repair of Castings

18.1 Castings may be repaired only by processes approvedand agreed upon between the producer and purchaser, that is,welding, impregnation, peening, blending, soldering, and soforth. Limitations on the extent and frequency of such repairs,and methods of inspection of repaired areas should also beagreed upon.

19. Repairing of Castings—Produced for Governmentaland Military Agencies

19.1 Welding:19.1.1 When welding is permitted, it shall be done by

methods suitable for the particular alloy. Welding methodsshall be in accordance with such specifications as are refer-enced on the applicable drawings, or as are required by thecontract or order.

19.1.2 All welding shall be done by qualified weldersapproved by the purchaser.

19.1.3 When castings are to be supplied in the heat-treatedcondition, they shall be heat treated to the required temper afterwelding, except that small arc welds may be performed withoutsubsequent heat treatment upon approval of the purchaser.

19.1.4 Unless otherwise specified, castings that have beenrepaired by welding shall have the welded areas examinedradiographically after all reworking and heat treatment havebeen completed.

19.1.5 All welds shall be free of cracks, excess gas, poros-ity, lack of fusion and meet the same quality requirements asthe parent material.

19.1.6 Welded castings shall be marked with a symbol ofthree concentric circles with a letter or number designating thewelder adjacent to the symbol. The outer circle of the symbolshall be not larger than 1⁄4 in. [6 mm] in outside diameter. Allwelded areas shall be encircled with a ring of white paint priorto submission for final inspection.

19.1.7 Naval Shipboard Applications—Repair welding ofcastings used in Naval shipboard pressure vessels, pipingsystems and machinery shall be performed in accordance withrequirements for repair of castings specified in NAVSEATechnical Publication S9074-AR-GIB-010/278.

19.2 Impregnation—When impregnation is permitted, itshall be to correct general seepage leaks only and shall not beused to correct poor foundry technique or significant porosity.It shall be accomplished in accordance with MIL-STD-276.Unless otherwise authorized by the purchaser, castings whichhave been impregnated shall be marked “IMP.”

FIG. 2 Tension Test Specimen Casting [Metric]

B 26/B 26M – 03

7

19.3 Peening—When peening is permitted, it shall be tocorrect localized minor seepage leaks and small surface imper-fections only, or to disclose subsurface voids for purpose ofinspection. Peening will not be permitted to repair cracks, coldshuts, shrinks, misruns, defects due to careless handling, orother similar major defects. Peening may be accomplishedeither hot or cold and shall be performed by methods which areacceptable to the purchaser. Peened castings shall be markedwith Maltese cross approximately 1⁄4 in. [6 mm] high.

19.4 Blending—Blending with suitable grinders or othertools will be permitted for the removal of surface imperfectionsonly, and shall not result in dimensions outside the tolerancesshown on the applicable drawing.

20. Source Inspection

20.1 If the purchaser elects to make an inspection of thecasting at the producer’s works, it shall be so stated in thecontract or order.

20.2 If the purchaser elects to have inspection made at theproducer’s works, the producer shall afford the inspector allreasonable facilities to satisfy him that the material is beingfurnished in accordance with this specification. All tests andinspection shall be so conducted as not to interfere unneces-sarily with the operation of the works.

21. Foundry Inspection

21.1 Requirements such as surface finish, parting line pro-jections, snagging projections where gates and risers wereremoved, and so forth, may be checked visually. It is advisableto have agreed-upon observational standards representing bothacceptable and unacceptable material.

21.2 Liquid Penetrant Inspection:21.2.1 When specified, liquid penetrant inspection shall be

in accordance with Test Method E 165, and the requiredsensitivity shall be specified.

21.2.2 Acceptance standards for discontinuities shall beagreed upon, including size and frequency per unit area andlocation.

21.3 Radiographic Inspection:21.3.1 When specified, radiographic inspection shall be in

accordance with Guide E 94 and Reference RadiographsE 155.

21.3.2 Radiographic acceptance shall be in accordance withrequirements selected from Table 4. Any modifications of thistable and the frequency per unit area and location should alsobe agreed upon.

21.3.3 The number, film size, and orientation of radiographsand the number of castings radiographically inspected shall beagreed upon between the manufacturer and purchaser.

22. Rejection and Rehearing

22.1 Castings that show unacceptable defects revealed byoperations subsequent to acceptance and within an agreed timemay be rejected, and shall be replaced by the producer.

22.2 In the case of dissatisfaction regarding rejections basedon chemical composition and mechanical properties specifiedin Section 7 and 12, respectively, the producer may make claimfor rehearing as the basis of arbitration within a reasonabletime after receipt by the producer of the rejection notification.

23. Certification

23.1 The producer shall, on request, furnish to the purchasera certificate stating that each lot has been sampled, tested, andinspected in accordance with this specification, and has met therequirements.

24. Identification and Repair Marking—CastingsProduced for Government and Military Agencies

24.1 Identification—Unless otherwise specified, each cast-ing shall be marked with the applicable drawing or partnumber. The marking shall consist of raised Arabic numerals,and when applicable capital letters, cast integral. The locationof the identification marking shall be as specified on theapplicable drawing. When the location is not specified on thedrawing, the drawing/part number shall be placed in a locationmutually agreeable to the purchaser and producer.

24.1.1 Lot Identification—When practicable, each castingshall also be marked with the melt of inspection lot number.

24.2 Lot—A lot shall consist of all of the cleaned castingspoured from the same heat or melt when subsequent heattreatment is not required.

24.2.1 When the castings consist of alloys which requireheat treatment, the lot shall consist of all castings from thesame melt or heat which have been heat treated in the samefurnace charge, or if heat treated in a continuous furnace, allcastings from the same melt or heat that are discharged fromthe furnace during a 4-h period.

24.3 Repair Markings—All identification markings indicat-ing repairs as specified in 19.1.6, 19.2, and 19.3, shall be madewith a waterproof marking fluid.

25. Packaging, Marking, and Shipping

25.1 The material shall be packaged in such a manner as toprevent damage in ordinary handling and transportation. Thetype of packaging and gross weight of individual containersshall be left to the discretion of the producer unless otherwiseagreed upon. Packaging methods and containers shall be soselected as to permit maximum utility of mechanical equip-ment in unloading and subsequent handling. Each package orcontainer shall contain only one size, alloy, and temper ofmaterial when packaged for shipment unless otherwise agreedupon.

25.2 Each package or container shall be marked with thepurchase order number, drawing number, quantity, specifica-tion number, alloy and temper, gross and net weights, and thename of the producer.

25.3 Packages or containers shall be such as to ensureacceptance by common or other carriers for safe transportationat the lowest rate to the point of delivery.

25.4 When specified in the contract or purchase order,material shall be preserved, packaged and packed in accor-dance with the requirements of Practices B 660. The applicablelevels shall be as specified in the contract or order. Marking forshipment of such material shall be in accordance with Fed. Std.No. 123 or Practice D 3951 for civil agencies and MIL-STD-129 for military agencies.

26. Keywords

26.1 aluminum; sand casting

B 26/B 26M – 03

8

ANNEXES

(Mandatory Information)

A1. BASIS FOR INCLUSION OF PROPERTY LIMITS

A1.1 Limits are established at a level at which a statisticalevaluation of the data indicates that 99 % of the populationobtained from all standard material meets the limit with 95 %confidence. For the products described, mechanical propertylimits for the respective size ranges are based on the analysesof at least 100 data from standard production material with no

more than ten data from a given lot. All tests are performed inaccordance with the appropriate ASTM test methods. Forinformational purposes, refer to “Statistical Aspects of Me-chanical Property Assurance” in the Related Material section ofthe Annual Book of ASTM Standards, Vol 02.02.

A2. ACCEPTANCE CRITERIA FOR INCLUSION OF NEW ALUMINUM AND ALUMINUM ALLOYSIN THIS SPECIFICATION

A2.1 Prior to acceptance for inclusion in this specification,the composition of wrought or cast aluminum or aluminumalloy shall be registered in accordance with ANSI H35.1 orH35.1(M). The Aluminum Association12 holds the Secretariatof ANSI H35 Committee and administers the criteria andprocedures for registration.

A2.2 If it is documented that the Aluminum Associationcould not or would not register a given composition, analternative procedure and the criteria for acceptance shall be asfollows:

A2.2.1 The designation submitted for inclusion does notutilize the same designation system as described in ANSIH35.1 or H35.1(M). A designation not in conflict with otherdesignation systems or a trade name is acceptable.

A2.2.2 The aluminum or aluminum alloy has been offeredfor sale in commercial quantities within the prior twelvemonths to at least three identifiable users.

A2.2.3 The complete chemical composition limits are sub-mitted.

A2.2.4 The composition is, in the judgement of the respon-sible subcommittee, significantly different from that of anyother aluminum or aluminum alloy already in the specification.

A2.2.5 For codification purposes, an alloying element is anyelement intentionally added for any purpose other than grainrefinement and for which minimum and maximum limits arespecified. Unalloyed aluminum contains a minimum of99.00 % aluminum.

A2.2.6 Standard limits for alloying elements and impuritiesare expressed to the following decimal places:

Less than 0.001 % 0.000X0.001 to but less than 0.01 % 0.00X0.01 to but less than 0.10 %

Unalloyed aluminum made by a refining process 0.0XXAlloys and unalloyed aluminum not made by a refining

process 0.0X0.10 through 0.55 % 0.XX

(It is customary to express limits of 0.30 through 0.55 %as 0.X0 or 0.X5.)

Over 0.55 % 0.X, X.X, etc.(except that combined Si + Fe limits for 99.00 % min

imum aluminum must be expressed as 0.XX or1.XX)

A2.2.7 Standard limits for alloying elements and impuritiesare expressed in the following sequence: Silicon; Iron; Copper;Manganese; Magnesium; Chromium; Nickel; Zinc (NoteA2.1); Titanium; Other Elements, Each; Other Elements, Total;Aluminum (Note A2.2).

NOTE A2.1—Additional specified elements having limits are inserted inalphabetical order of their chemical symbols between zinc and titanium, orare specified in footnotes.

NOTE A2.2—Aluminum is specified as minimum for unalloyed alumi-num and as a remainder for aluminum alloys.12 The Aluminum Association, 900 19th Street, NW, Washington, DC 20006.

B 26/B 26M – 03

9

APPENDIXES

(Nonmandatory Information)

X1. ALLOY PROPERTIES AND CHARACTERISTICS

X1.1 The data in Table X1.1 are approximate and aresupplied for general information only.

X2. SI UNITS

X2.1 The SI unit for strength properties now shown is inaccordance with the International System of Units (SI) (IEEE/ASTM SI 10). The derived SI unit for force is the newton (N),which is defined as that force which when applied to a bodyhaving a mass of one kilogram gives it an acceleration of onemetre per second squared (N = kg·m/s2). The derived SI unitfor pressure or stress is the newton per square metre (N/m2),

which has been named the pascal (Pa) by the General Confer-ence on Weights and Measures. Since 1 ksi = 6 894 757 Pa,the metric equivalents are expressed as megapascal (MPa),which is the same as MN/m2 and N/mm2.

B 26/B 26M – 03

10

TAB

LE

X1.

1P

rop

erti

esan

dC

har

acte

rist

ics

NO

TE

1—1

indi

cate

sbe

stof

grou

p,5

indi

cate

spo

ores

tof

grou

p.

Allo

yP

atte

rnS

hrin

kage

Allo

wan

ce,A

in./f

t[m

m/m

]

App

roxi

mat

eM

eltin

gR

ange

,B°F

[°C

]

Res

ist-

ance

toH

otC

rack

-in

gC

Pre

ssur

eTi

ghtn

ess

Flu

id-

ityD

Sol

idi-

ficat

ion

Shr

ink-

age

Tend

-en

cyE

Nor

mal

lyH

eat

Trea

ted

Res

ist-

ance

toC

orro

-si

onF

Mac

hin-

ingG

Pol

ish-

ingH

Ele

ctro

-pl

atin

gI

Ano

diz-

ing

(Ap-

pear

-an

ce)J

Che

mic

alO

xide

Coa

ting

(Pro

tec-

tion)

K

Str

engt

hat

Ele

-va

ted

Tem

pera

-tu

reL

Sui

tabi

l-ity

for

Wel

d-in

gM

Sui

tabi

l-ity

for

Bra

zing

N

AN

SIO

UN

S

201.

0A

0201

0[1

3]10

60–1

200

[571

–649

]4

33

4ye

s4

11

12

21

4no

204.

0A

0204

05⁄32

[13]

985–

1200

[529

–649

]4

33

4ye

s4

12

13

41

4no

242.

0A

0242

05⁄32

[13]

990–

1175

[532

–635

]4

33

4ye

s4

22

13

41

4no

295.

0A

0295

05⁄32

[13]

970–

1190

[521

–643

]4

43

3ye

s3

22

12

33

3no

319.

0A

0319

05⁄32

[13]

950–

1125

[510

–607

]2

22

2ye

s3

34

24

33

2no

328.

0A

0328

05⁄32

[13]

960–

1135

[516

–613

]1

11

1ye

s3

45

24

22

2no

355.

0A

0355

05⁄32

[13]

1015

–115

0[5

46–6

21]

11

11

yes

33

31

42

22

noC

355.

0A

3355

05⁄32

[13]

1015

–115

0[5

46–6

21]

11

11

yes

33

31

42

22

no35

6.0

A03

560

5⁄32

[13]

1035

–113

5[5

57–6

13]

11

11

yes

24

52

42

32

noA

356.

0A

1356

05⁄32

[13]

1035

–113

5[5

57–6

13]

11

11

yes

24

52

42

32

no44

3.0

A04

430

5⁄32

[13]

1065

–117

0[5

74–6

32]

11

11

no3

55

25

24

1ltd

B44

3.0

A24

430

5⁄32

[13]

1065

–117

0[5

74–6

32]

11

11

no2

55

25

24

1ltd

514.

0A

0514

05⁄32

[13]

1110

–118

5[5

99–6

40]

45

55

no1

11

51

12

4no

520.

0A

0520

01⁄10

[8]

840–

1120

[449

–604

]2

54

5ye

s1

11

41

1P

5no

535.

0A

0535

05⁄32

[13]

1020

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5[5

49–6

29]

35

55

no1

11

51

13

4no

705.

0A

0705

03⁄16

[16]

1105

–118

0[5

96–6

38]

53

44

aged

21

13

22

54

yes

only

707.

071

0.0Q

A07

070

A07

100

3⁄16

[16]

3⁄16

[16]

1085

–116

5[5

85–6

29]

1105

–119

5[5

96–6

46]

5 53 3

4 44 4

yes

aged

only

2 21 1

1 13 2

2 22 3

5 54 4

yes

yes

712.

0QA

0712

03⁄16

[16]

1110

–118

5[5

99–6

41]

53

44

aged

only

21

12

23

54

yes

713.

0A

0713

03⁄16

[16]

1100

–118

5[5

93–6

41]

53

44

aged

only

21

12

23

54

yes

771.

085

0.0

A07

710

A08

500

3⁄16

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1120

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04–6

43]

435–

1200

[224

–649

]5 5

3 54 5

4 5ye

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2 31 1

1 13 5

2 42 5

5 P4 5

yes

no

851.

0QA

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05⁄32

[13]

440–

1165

[227

–629

]4

45

4ag

edon

ly3

11

54

5P

5no

852.

0QA

0852

05⁄32

[13]

400–

1175

[204

–635

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55

5ag

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54

5P

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llow

ance

sfo

rav

erag

eca

stin

gs.

Shr

inka

gere

quire

men

tsw

illva

ryw

ithin

tric

acy

ofde

sign

and

dim

ensi

ons.

BTe

mpe

ratu

res

ofso

lids

and

liqui

dsar

ein

dica

ted;

pour

ing

tem

pera

ture

sw

illbe

high

er.

CA

bilit

yof

allo

yto

with

stan

dco

ntra

ctio

nst

ress

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hile

cool

ing

thro

ugh

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shor

tor

britt

le-t

empe

ratu

rera

nge.

DA

bilit

yof

liqui

dal

loy

toflo

wre

adily

inm

old

and

fillt

hin

sect

ions

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Dec

reas

edin

volu

me

acco

mpa

nyin

gfr

eezi

ngof

allo

yan

dm

easu

reof

amou

ntof

com

pens

atin

gfe

edm

etal

requ

ired

info

rmof

riser

s.F

Bas

edon

allo

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ance

inst

anda

rd-t

ype

salt-

spra

yte

st.

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ompo

site

ratin

gba

sed

onea

seof

cutti

ng,

chip

char

acte

ristic

s,qu

ality

offin

ish,

and

tool

life.

Rat

ings

,in

the

case

ofhe

at-t

reat

able

allo

ys,

base

don

a-T

6te

mpe

r.O

ther

tem

pers

,pa

rtic

ular

lyth

ean

neal

edte

mpe

r,m

ayha

velo

wer

ratin

g.H

Com

posi

tera

ting

base

don

ease

and

spee

dof

polis

hing

and

qual

ityof

finis

hpr

ovid

edby

typi

calp

olis

hing

proc

edur

e.IA

bilit

yof

cast

ing

tota

kean

dho

ldan

elec

trop

late

appl

ied

bypr

esen

tst

anda

rdm

etho

ds.

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ated

onlig

htne

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colo

r,br

ight

ness

,an

dun

iform

ityof

clea

ran

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edco

atin

gap

plie

din

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ricac

idel

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olyt

e.K

Rat

edon

com

bine

dre

sist

ance

ofco

atin

gan

dba

seal

loy

toco

rros

ion.

LR

atin

gba

sed

onte

nsile

and

yiel

dst

reng

ths

atte

mpe

ratu

res

upto

500°

F[2

60°C

],af

ter

prol

onge

dhe

atin

gat

test

ing

tem

pera

ture

.M

Bas

edon

abili

tyof

mat

eria

lto

befu

sion

wel

ded

with

fille

rro

dof

sam

eal

loy.

NR

efer

sto

suita

bilit

yof

allo

yto

with

stan

dbr

azin

gte

mpe

ratu

res

with

out

exce

ssiv

edi

stor

tion

orm

eltin

g.O

AS

TM

allo

yde

sign

atio

nsar

ere

cord

edin

Pra

ctic

eB

275.

PN

otre

com

men

ded

for

serv

ice

atel

evat

edte

mpe

ratu

res.

Q71

0.0

form

erly

A71

2.0,

712.

0fo

rmer

lyD

712.

0,85

1.0

form

erly

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0.0,

852.

0fo

rmer

lyB

850.

0.

B 26/B 26M – 03

11

X3. INACTIVE ALLOYS

X3.1 Alloys listed as inactive by the AluminumAssociation—208.0 and 222.0. Listing the composition limits,mechanical properties, and characteristics of the alloys is a

method of preserving this data should it be needed at somefuture date.

TABLE X3.1 Chemical Composition Limits–Inactive Alloys

NOTE 1—All applicable notes and footnotes can be found in Table 1

AlloyAluminum

Composition, (Values in Weight Percent) Others

ANSI UNS Silicon Iron CopperMan-

ganeseMagne-

siumChromium Nickel Zinc Tin Titanium Each Total

208.0 A02080 remainder 2.5-3.5 1.2 3.5-4.5 0.50 0.10 ... 0.35 1.0 ... 0.25 ... 0.50222.0 A02220 remainder 2.0 1.5 9.2-10.7 0.50 0.15-0.35 ... 0.50 0.8 ... 0.25 ... 0.35

TABLE X3.2 Tensile Requirements (Inch-Pound Units)–Inactive Alloys

NOTE 1—All applicable notes and footnotes can be found in Table 2.

AlloyTemper

Tensile Strength,min, ksi


min, ksi

Elongation in2 in. or 4 x

diameter, min, %

Typical Brinell Hard-ness, 500 kgf, 10

mmANSI UNS

208.0 A02080 F 19.0 (131) 120 (83) 1.5 55222.0 A02220 O 23.0 (159) 80

T6 30.0 (207) 115

B 26/B 26M – 03

12

TAB

LE

X3.

3P

rop

erti

esan

dC

har

acte

rist

ics–

Inac

tive

Allo

ys

NO

TE

1—1

indi

cate

sbe

stof

grou

p,5

indi

cate

spo

ores

tof

grou

p.N

OT

E2—

All

appl

icab

leno

tes

and

foot

note

sca

nbe

foun

din

Tabl

eX

1.1.

Allo

yP

atte

rnS

hrin

kage

Allo

wan

ce,A

in./f

t[m

m/m

]

App

roxi

mat

eM

eltin

gR

ange

,B°F

[°C

]

Res

ist-

ance

toH

otC

rack

-in

gC

Pre

ssur

eTi

ghtn

ess

Flu

id-

ityD

Sol

idi-

ficat

ion

Shr

ink-

age

Tend

-en

cyE

Nor

mal

lyH

eat

Trea

ted

Res

ist-

ance

toC

orro

-si

onF

Mac

hin-

ingG

Pol

ish-

ingH

Ele

ctro

-pl

atin

gI

Ano

diz-

ing

(Ap-

pear

-an

ce)J

Che

mic

alO

xide

Coa

ting

(Pro

tec-

tion)

K

Str

engt

hat

Ele

-va

ted

Tem

pera

-tu

reL

Sui

tabi

l-ity

for

Wel

d-in

gM

Sui

tabi

l-ity

for

Bra

zing

N

AN

SIO

UN

S

208.

0A

0208

05⁄32

[13]

970-

1160

[521

-627

]2

22

2ye

s4

33

23

33

2no

222.

0A

0222

05⁄32

[13]

965-

1155

[518

-624

]3

33

3ye

s4

12

13

41

4no

B 26/B 26M – 03

13

SUMMARY OF CHANGES

Committee B07 has identified the location of selected changes to this standard since the last issue(B 26/B 26M – 02) that may impact the use of this standard. (Approved April 10, 2003.)

(1) Added new section 2.3, AMS Standards, and added refer-ence to AMS 2771.(2) Section 12.2 revised to reference B 917/B 917M and AMS2771.(3) Section 17.1 revised to reference B 917/B 917M and AMS2771.(4) New sections 1.2 and 3.1 added.(5) New Appendix X3 added.(6) Alloys 208.0 and 222.0 removed from Table 1, Table 2,Table 3, and Table X1.1 and placed in “Inactive Alloys” Tablesin X3.1.

(7) Metric equivalents adjusted in sections 8.1.1 and 14.1.1.

(8) Terminology B 881 added to Section 2.

(9) Removed references to Test Method E 227 from 2.2, 9.1,and 16.1.

(10) Removed references to MIL-I-13857 from 2.6 and 19.2.

(11) Replaced MIL-STD-278 with NAVSEA Technical Publi-cation S9074-AR-GIB-010/278 in 19.1.7.

(12) Added references to Practice D 3951 in 2.2 and 25.4.

(13) Added 1.7, safety caveat.

Committee B07 has identified the location of selected changes to this standard since the last issue (B 26/B 26M – 01) that mayimpact the use of this standard. (Approved Oct. 10, 2002.)

(1) References to Practice B 597 were replaced with PracticeB 917/B 917M in Section 2, 12.2 and 17.1.

(2) A column in Table 2 was changed to read “Elongation in 2in. or 4 x diameter, min, %”.

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.

This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or [email protected] (e-mail); or through the ASTM website(www.astm.org).

B 26/B 26M – 03

14

Designation: B 37 – 03

Standard Specification forAluminum for Use in Iron and Steel Manufacture 1

This standard is issued under the fixed designation B 37; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon (e) indicates an editorial change since the last revision or reapproval.

1. Scope*

1.1 This specification covers aluminum and aluminum al-loys in the form of ingots, bars, rods, cones, nuggets or shot,designated as shown in Table 1, for use in the manufacture ofiron and steel.

1.2 Units—The values stated in inch-pound units are to beregarded as the standard. The values given in parentheses aremathematical conversions to SI units, which are provided forinformation only and are not considered standard.

1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.


2.1 ASTM Standards:B 660 Practices for Packaging/Packing of Aluminum and

Magnesium Products2

B 881 Terminology Relating to Aluminum and Magnesium-Alloy Products2

D 3951 Practice for Commercial Packaging3


E 34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base Alloys5

E 55 Practice for Sampling Wrought Nonferrous Metals andAlloys for Determination of Chemical Composition5


E 607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point-to-Plane Tech-nique, Nitrogen Atmosphere5


E 1251 Test Method for Optical Emission SpectrometricAnalysis of Aluminum and Aluminum Alloys by the ArgonAtmosphere, Point-to-Plane, Unipolar Self Initiating Ca-pacitor Discharge5

3. Terminology

3.1 Definitions—Refer to Terminology B 881 for definitionsof product terms used in this specification.

3.2 Definitions of Terms Specific to This Standard:3.2.1 bar—a form of aluminum deoxidizing product with a

rectangular cross section, similar to the appearance of a brick.3.2.2 cone—a form of aluminum deoxidizing product with a

round flat base and a pointed end.3.2.3 deox—a common or commercial term used in place of

aluminum deoxidizing product.3.2.4 nugget—a form of aluminum deoxidizing product

with a non-uniform (lump) shape.3.2.5 shot—a form of aluminum deoxidizing product with a

spheroid appearance of a pellet.

1 This specification is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.01 onAluminum Alloy Ingots and Castings.

Current edition approved April 10, 2003. Published August 2003. Originallyapproved in 1920. Last previous edition approved in 2001 as B 37 – 96 (2001).

2 Annual Book of ASTM Standards, Vol 02.02.3 Annual Book of ASTM Standards, Vol 15.09.4 Annual Book of ASTM Standards, Vol 14.02.5 Annual Book of ASTM Standards, Vol 03.05.

TABLE 1 Chemical Limits

NOTE 1—Analysis shall be made only for copper, zinc, magnesium,silicon, and iron unless the determination of additional elements isrequired by the contract or order, or the presence of other elements insubstantial concentration is indicated during the course of the analysis. Inthe latter case, the amount of these other elements shall be determined,reported, and the total of copper, zinc, magnesium, silicon, iron, and“other elements” shall not exceed the specified amount prescribed in thelast column of the table. Unless otherwise specified in the contract ororder, 0.2 % or more of any “other element” shall constitute a “substantialconcentration” and require that element to be reported.

NOTE 2—The following applies to all specified limits in this table: Forpurposes of determining conformance to these limits, an observed value ora calculated value obtained from analysis shall be rounded to the nearestunit in the last right-hand place of figures used in expressing the specifiedlimit in accordance with the rounding-off method of Practice E 29.

Grade

Composition, %

Aluminum,min, by

Difference

Copper,max

Zinc,max

Magnesium,max

Total of AllImpurities,

max

990A 99.0 0.2 0.2 0.2 1.0980A 98.0 0.2 0.2 0.5 2.0950A 95.0 1.5 1.5 1.0 5.0920A 92.0 4.0 1.5 1.0 8.0900A 90.0 4.5 3.0 2.0 10.0850A 85.0 5.0 5.5 2.5 15.0

1

*A Summary of Changes section appears at the end of this standard.

Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.


4.1 Orders for material under this specification shall includethe following:

4.1.1 This specification designation (which includes thenumber, the year, and the revision letter, if applicable),

4.1.2 Grade of material (see Table 1),4.1.3 Form of material (ingot, bar, rod, cone, nugget or

shot),4.1.4 Any required dimensional or weight limitations for the

material, and4.1.5 The quantity in either pieces or pounds (kilograms).4.2 Additionally, orders for material to this specification

shall include the following information when required by thepurchaser:

4.2.1 Special packaging (see Section 7),4.2.2 Whether Practices B 660 applies and, if so, the levels

of preservation, packaging and packing required (see 7.4),4.2.3 Whether Practice D 3951 applies (see 7.4),4.2.4 If inspection is required at manufacturer’s plant (see

Section 8),4.2.5 Whether certificate of conformance is required (see

6.3 and 10.1), and4.2.6 Whether a certified chemical analysis is required (see

6.3, 6.9, and 6.10).

5. Quality Assurance

5.1 Unless otherwise specified in the contract or purchaseorder, the producer shall be responsible for the performance ofall inspections and test requirements specified herein. Unlessdisapproved by the purchaser, the producer may use his own orany other suitable facilities for the performance of the inspec-tion and test requirements specified herein. The purchaser shallhave the right to perform any of the inspections and tests setforth in this specification where such inspections are deemednecessary to confirm that the material conforms to prescribedrequirements.

5.2 All testing shall be performed in accordance to appli-cable ASTM test methods.

5.3 The material covered by this specification shall be freeof dross, slag, and other harmful contamination.

5.4 Shot:5.4.1 Hollow shells shall not exceed 10 % by count in a

minimum sample of 340 shot. The surface of material in shotform shall be free from a heavy oxidized coating.

5.4.2 The bulk density of shot shall not be less than 90lb/ft3.

6. Chemical Composition

6.1 Limits—The average analysis of each lot of materialshall conform to the chemical composition limits specified inTable 1. Conformance shall be determined by the producer’sanalysis of samples from each cast, with the average analysisdetermined from the analytical results of all samples taken forthat cast (see 6.9). Analytical samples from each cast shall betaken at the time the ingots, bars, rods, cones, nuggets or shotare produced or samples may be taken from the finishedproduct. If the producer has determined the chemical compo-

sition of the material during the course of manufacture,sampling and analysis of the finished product shall not berequired.

6.2 Methods of Analysis—The determination of chemicalcomposition shall be made in accordance with suitable chemi-cal (Test Methods E 34), or spectrochemical (Test MethodsE 607 and E 1251) methods.

6.3 When an actual chemical analysis or a certificate ofconformance is required with a shipment, it shall be called forin the contract or purchase order.

6.4 Lot Definition—A lot shall be defined as follows:6.4.1 A “lot” in a batch process shall consist of that product

produced in a continuous cast from one furnace or ladle. Oncethe furnace or ladle has been alloyed and casting starts, nohardeners, liquid or solid material shall be added to the furnaceor ladle.

6.4.2 A “lot” in a continuous process shall consist of thatproduct produced during a continuous cast from one furnaceduring a period of up to 24 h. Additions of hardeners, liquid orsolid material are added to the furnace during the casting ofproduct.

6.4.3 Any manufacturing change in the furnace, castingequipment or continuity of operation, which potentially effectsthe product characteristics defined by this specification shall beconsidered as the start of a new lot.

6.5 When samples are taken at the time the molten metal ismade into shot, rod, bar, nuggets, cones or ingot, at least onesample shall be taken from each source of molten metal.

6.6 Sampling Frequency—The frequency of samples takenfor determination of chemical composition shall be as follows:

6.6.1 In a batch production process, samples shall be takenperiodically throughout the production of each lot. Eachsample shall be representative of approximately equal volumesof the material. The frequency of sampling shall be not lessthan one sample for every 20 % of the volume of the furnaceor ladle from which the material is being poured with aminimum of three samples per lot.

6.6.2 In a continuous production process, samples shall betaken periodically throughout the production of each lot. Eachsample shall be representative of approximately equal volumesof the material. The frequency of sampling shall be not lessthan one sample for every 20 % of the volume of the furnaceor ladle from which the material is being poured with aminimum of five samples per lot.

6.7 Sampling of Finished Product—The number of samplestaken for determination of chemical composition shall be asfollows:

6.7.1 When the metal is shipped in carload lots of the samegrade and cast, not less than five samples shall be taken atrandom from the carload for sampling. If the shipment is in lessthan carload lots or in mixed grades, one sample shall be takenfor each 6000 lb (2700 kg) or fraction thereof.

6.8 Sample Preparation—Samples shall be taken and pre-pared as follows:

6.8.1 A sample shall consist of an ingot, bar or section ofrod and in the case of material in shot, cone or nugget form, asample shall consist of a sufficient material to make a repre-sentative sample.

B 37 – 03

2

6.8.2 Sampling for spectrochemical analysis shall be inaccordance with Practices E 716. Samples for other methods ofanalysis shall be suitable for the form of material beinganalyzed and the type of analytical method used.

6.8.3 Samples for chemical analysis shall be taken bydrilling, sawing, milling, turning, or clipping a piece or piecesto obtain a representative prepared sample of not less than 75g. Sampling shall be in accordance with Practice E 55 for rodand Practice E 88 for all other forms.

6.9 The certified chemical composition of a lot shall be theaverage of the analytical results from testing of all samplestaken for that lot.

6.10 When lots are mixed, the certified chemical composi-tion of a composite lot shall be the weighted average of thecertified chemical compositions from each lot that is containedin the composite lot.

7. Packaging, Marking, and Shipping

7.1 The material shall be packaged in such a manner as toprevent damage in ordinary handling and transportation. Thetype of packaging and gross weight of individual containersshall be left to the discretion of the producer unless otherwiseagreed upon. Packaging methods and containers shall be soselected as to permit maximum utility of mechanical equip-ment in unloading and subsequent handling. Each package orcontainer shall contain only one size and one grade of materialwhen packed for shipment unless otherwise agreed uponbetween the purchaser and producer.

7.2 Each package or container shall be marked with thepurchase order number, quantity, specification number, grade,gross and net weights, and the name of the producer.

7.3 Packages or containers shall be such as to ensureacceptance by common or other carriers for safe transportationat the lowest rate to the point of delivery.

7.4 When specified in the contract or purchase order,material shall be preserved, packaged and packed in accor-dance with the requirements of Practices B 660. The applicable

levels shall be as specified in the contract or order. Marking forshipment of such material shall be in accordance with PracticeD 3951.

8. Source Inspection

8.1 If the purchaser elects to make an inspection of produc-tion or the material at the manufacturer’s works, it shall be sostated in the contract or purchase order.

8.2 If the purchaser elects to have inspection made at theproducer’s facilities, the manufacturer shall afford the inspec-tor all reasonable facilities to satisfy him that the material isbeing furnished in accordance with this specification and/or therequirements of the contract. All tests and inspection shall beso conducted as not to interfere unnecessarily with the opera-tion of the works.

9. Rejection and Rehearing

9.1 Any ingots, bars, rods, cones, nuggets or shot that at thetime of receipt does not conform to the requirements of thisspecification may be rejected, and shall be replaced by theproducer.

9.2 In the case of dissatisfaction regarding rejections basedon quality or chemical composition requirements as specifiedin Sections 5 and 6, respectively, the manufacturer may makeclaim for a rehearing as a basis of arbitration within 15calendar days after receipt by the producer of the rejectionnotification.

10. Certification

10.1 The manufacturer shall, on request, furnish to thepurchaser a certificate stating that each lot has been sampled,tested, and inspected in accordance with this specification, andhas met the requirements of Sections 5, 6.1, 6.9, and 6.10.

11. Keywords

11.1 aluminum; deox; deoxidizing; iron manufacture; steelmanufacture

SUMMARY OF CHANGES

Committee B07 has identified the location of selected changes to this standard since the last issue(B 37–96 (2001)) that may impact the use of this standard. (Approved April 10, 2003).

(1) Rewrite of standard.

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.

This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or [email protected] (e-mail); or through the ASTM website(www.astm.org).

B 37 – 03

3

Designation: B 80 – 01

Standard Specification forMagnesium-Alloy Sand Castings 1

This standard is issued under the fixed designation B 80; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon (e) indicates an editorial change since the last revision or reapproval.

This standard has been approved for use by agencies of the Department of Defense.

1. Scope

1.1 This specification covers magnesium-alloy sand cast-ings designated as shown in Table 1.

1.2 The values stated in inch-pound units are to be regardedas the standard. The SI values in parentheses are provided forinformation only.


2.1 The following documents of the issue in effect on dateof order acceptance form a part of this specification to theextent referenced herein:

2.2 ASTM Standards:B 93/B93M Specification for Magnesium Alloys in Ingot

Form for Sand Castings, Permanent Mold Castings, andDie Castings2

B 275 Practice for Codification of Certain Nonferrous Met-als and Alloys, Cast and Wrought2

B 296 Practice for Temper Designations of MagnesiumAlloys, Cast and Wrought2

B 557 Test Methods of Tension Testing Wrought and CastAluminum- and Magnesium-Alloy Products2

B 660 Practices for Packaging/Packing of Aluminum andMagnesium Products2

B 661 Practice for Heat Treatment of Magnesium Alloys2


E 35 Test Methods for Chemical Analysis of Magnesiumand Magnesium Alloys4


E 94 Guide for Radiographic Testing5

E 155 Reference Radiographs for Inspection of Aluminumand Magnesium Castings5

E 165 Test Method for Liquid Penetrant ExaminationMethod5

E 527 Practice for Numbering Metals and Alloys (UNS)6


2.3 Federal Standards:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)8

Fed. Std. No. 184 Identification Marking of Aluminum,Magnesium and Titanium8

2.4 Military Standards:MIL-STD-129 Marking for Shipment and Storage (Military

Agencies)8

MIL-STD-276 Impregnation of Porous Non-ferrous MetalCastings8

MIL-I-13857 Impregnation of Metal Castings8

MIL-M-46062 Magnesium Alloy Castings, High Strength8

MIL-M-6857 Heat Treatment of Magnesium Alloy Cast-ings8

2.5 ANSI Standard:9

ANSI Z1.4 Sampling Procedures and Tables for Inspectionby Attributes

3. Terminology

3.1 Definitions:3.1.1 casting lot—unless otherwise agreed, shall consist of

not more than 1000 pounds of cleaned castings from the samemelt or heat, except where this weight limit may be exceededby a single casting. In such cases, each casting shall beconsidered a lot.

3.1.2 heat treat lot—for the purpose of mechanical propertytesting, a lot shall consist of all castings heat treated in thesame furnace charge to the same temper.

3.1.3 sand casting—metal object produced by pouring mol-ten metal into a sand mold and allowing it to solidify.


4.1 Orders for castings under this specification shall includethe following information:

4.1.1 Applicable drawing or part number,4.1.2 Quantity of each casting,1 This specification is under the jurisdiction of ASTM Committee B07 on Light

Metals and Alloys, and is the direct responsibility of Subcommittee B07.04 onMagnesium Alloy Cast and Wrought Products.

Current edition approved Apr. 10, 2001. Published May 2001. Originallypublished as B 80 – 30 T. Last previous edition B 80 – 97.

2 Annual Book of ASTM Standards, Vol 02.02.3 Annual Book of ASTM Standards, Vol 14.02.4 Annual Book of ASTM Standards, Vol 03.05.5 Annual Book of ASTM Standards, Vol 03.03.

6 Annual Book of ASTM Standards, Vol 01.01.7 Annual Book of ASTM Standards, Vol 03.06.8 Available from Standardization Documents, Order Desk, Bldg. 4, Section D,

700 Robbins Ave., Philadelphia, PA 19111-5094, ATTN: NPODS.9 Available from American National Standards Institute, 11 W. 42nd St., 13th

Floor, New York, NY 10036.

1

Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.Contact ASTM International (www.astm.org) for the latest information.

4.1.3 Specification number and title,4.1.4 Alloy (Section 9 and Table 1),4.1.5 Temper (Section 11, Table 2 and X1.2),4.1.6 Whether foundry control is required (Section 8),4.1.7 Whether test specimens cut from castings are required

in addition to, or instead of, separately cast test specimens(Section 12 and Table X1.2),

4.1.8 Whether liquid penetrant inspection is required (15.2),4.1.9 Whether radiographic inspection is required (15.3),4.1.10 Whether pressure testing is required (15.4),4.1.11 Whether source inspection is required (Section 17),4.1.12 Whether repairs are permissible (Section 19),4.1.13 Whether chemical analysis and mechanical property

reports or certifications, or both, are required (Section 20),4.1.14 Whether special packaging is required for shipment

(Section 22).

5. Responsibility for Quality Assurance

5.1 Responsibility for Inspection—Unless otherwise speci-fied in the contract or purchase order, the supplier is respon-sible for the performance of all inspection requirements asspecified herein. Except as otherwise specified in the contractor order, the supplier may use his own or any other facilitiessuitable for the performance of the inspection requirementsspecified herein, unless disapproved by the purchaser. Thepurchaser reserves the right to perform any of the inspections

set forth in the specification where such inspections are deemednecessary to ensure supplies and services conform to pre-scribed requirements.

6. Material Requirements

6.1 Unless otherwise specified, only magnesium alloy in-gots or producer’s foundry scrap conforming to SpecificationB 93 shall be used for pouring castings. Additions of smallamounts of grain refining elements and material for meltprocess losses are permitted.

6.2 Pure materials and master alloys may be used providedchemical analysis verifying conformance to Table 1 is doneprior to pouring any castings.

7. Manufacture

7.1 The responsibility of furnishing castings that can be laidout and machined to the finished dimensions within thepermissible variations specified, as shown on the blueprints ordrawings, shall rest with the supplier, except when patternequipment is furnished by the purchaser. Sufficient stock shallbe allowed for shrinkage, and where requested, for finishing;but castings of excessive weight shall not be furnished.

7.2 The castings may be subjected to such heat treatment asdeemed necessary to produce material that will conform to therequirements specified. Heat treatment shall be performed onthe whole of a casting, never on a part only, and shall be

TABLE 1 Chemical Requirements A

NOTE 1—Analysis shall regularly be made only for the elements specifically mentioned in this table. If, however, the presence of other elements issuspected or indicated in amounts greater than the specified limits, further analysis shall be made to determine that these elements are not present inexcessof the specified limits.

NOTE 2—The following applies to all specified limits in this table: For purposes of acceptance and rejection, an observed value or a calculated valueobtained from analysis shall be rounded to the nearest unit in the last right-hand place of figures used in expressing the specified limit.

Alloy NumberB Composition %

ASTM UNS IronMagne-

siumAlu-

minumMan-

ganeseZinc

RareEarths

Zirconium Silicon Copper Nickel

Others(Metallic

Impurities)Each

TotalC

Impu-rities

AM100A M10100 ... remainder 9.3–10.7 0.10–0.35 0.30 ... ... ... 0.30 0.10 0.01 ... 0.30AZ63A M11630 ... remainder 5.3–6.7 0.15–0.35 2.5–3.5 ... ... ... 0.30 0.25 0.01 ... 0.30AZ81A M11810 ... remainder 7.0–8.1 0.13–0.35 0.40–1.0 ... ... ... 0.30 0.10 0.01 ... 0.30AZ91C M11914 ... remainder 8.1–9.3 0.13–0.35 0.40–1.0 ... ... ... 0.30 0.10 0.01 ... 0.30AZ91E M11919 0.005D remainder 8.1–9.3 0.17–0.35 0.40–1.0 ... ... ... 0.20 0.015 0.0010 0.01 0.30AZ92A M11920 ... remainder 8.3–9.7 0.10–0.35 1.6–2.4 ... ... ... 0.30 0.25 0.01 ... 0.30EQ21AE M18330 ... remainder ... ... ... ... 1.5–3.0F 0.40–1.0 ... 0.05–0.10 0.01 ... 0.30EZ33A M12330 ... remainder ... ... 2.0–3.1 ... 2.5–4.0 0.50–1.0 ... 0.10 0.01 ... 0.30K1A M18010 ... remainder ... ... ... ... ... 0.40–1.0 ... ... ... ... 0.30QE22AG M18220G ... remainder ... ... ... ... 1.8–2.5F 0.40–1.0 ... 0.10 0.01 ... 0.30WE43A M18430 0.01 remainder ... 0.15 0.20 3.7–4.3 2.4–4.4H 0.40–1.0 0.01 0.03 0.005 0.2 ...WE43B M18432 0.010 remainder ... 0.03 0.20I 3.7–4.3 2.4–4.4H 0.40–1.0 ... 0.02 0.005 0.01J ...WE54A M18410 ... remainder ... 0.03 0.20 4.75–5.5 1.5–4.0H 0.40–1.0 0.01 0.03 0.005 0.20 ...ZC63A M16331 ... remainder ... 0.25–0.75 5.5–6.5 ... ... ... 0.20 2.4–3.0 0.01 ... 0.30ZE41A M16410 ... remainder ... 0.15 3.5–5.0 ... 0.75–1.75 0.40–1.0 ... 0.10 0.01 ... 0.30ZE63A M16630 ... remainder ... ... 5.5–6.0 ... 2.1–3.0 0.40–1.0 ... 0.10 0.01 ... 0.30ZK51A M16510 ... remainder ... ... 3.6–5.5 ... ... 0.50–1.0 ... 0.10 0.01 0.30ZK61A M16610 ... remainder ... ... 5.5–6.5 ... ... 0.6–1.0 ... 0.10 0.01 0.30

ALimits are in weight % max unless shown as a range or stated otherwise.BASTM alloy designations were established in accordance with Practice B 275. UNS designations were established in accordance with Practice E 527.CIncludes listed elements for when no specific limit is shown.DIf iron exceeds 0.005 %, the iron to manganese ratio shall not exceed 0.032.ESilver content for alloy EQ21A shall be 1.3 to 1.7 %.FRare earth elements are in the form of didymium, with not less than 70 % neodymium, and the remainder substantially praesodymium.GSilver content for alloy QE22A shall be 2.0 to 3.0 %.HRare earths are 2.0 to 2.5, 2.0 to 2.5, and 1.5 to 2.0 % Neodymium for WE43A, WE43B, and WE54A, respectively, the remainder being heavy rare earths.IZinc + Silver shall not exceed this value.JLithium shall not exceed 0.2 %.

B 80

2


applied in a manner that will produce the utmost uniformity.

NOTE 1—Alloy ZE63A requires solution heat treatment in hydrogen asexplained in X1.1.12.

8. Foundry Control

8.1 When specified, castings shall be produced underfoundry control approved by the purchaser. Foundry controlshall consist of examination of the castings by radiographic orother approved methods for determining internal discontinui-ties until the gating, pouring, and other foundry practices havebeen established to produce castings meeting the qualitystandards set by purchaser or agreed to between the purchaserand the producer. When foundry practices have been soestablished, the production method shall not be significantlychanged without demonstrating to the satisfaction of thepurchaser that the change does not adversely affect the qualityof the castings. Minor changes in pouring temperature of650°F from the established nominal temperature are permis-sible.

9. Chemical Composition Requirements

9.1 Limits—The castings shall conform to the chemicalcomposition limits prescribed in Table 1. Conformance shall bedetermined by analyzing samples taken when the castings arepoured, or by analyzing samples taken from the finishedproduct. If the chemical composition has been determinedduring the course of manufacture, sampling and analysis of thefinished product shall not be necessary.

10. Sampling for Chemical Composition

10.1 For determination of chemical composition, onesample of each casting lot shall be taken in accordance withPractice E 88 for chemical analysis or Practice E 716 forspectrochemical analysis.

10.1.1 Samples for other methods of chemical analysis shallbe suitable for the form of material being analyzed and the typeof analytical method used. In case of dispute, analyses shouldbe made by methods given in Methods E 35.

11. Heat Treatment

11.1 Unless otherwise specified, heat treatment for theapplicable tempers designated in Table 2 and X1.2 shall be inaccordance with Military Specification MIL-M-6857 or Prac-tice B 661. Heat treatment shall be performed on the wholecasting and never on a portion.

11.2 Each heat treat furnace charge shall contain at least oneset of test bars of the same composition range as the castings.The satisfactory heat treatment of the furnace charge shall bedetermined by the results from these test bars, which mustconform to the requirements of Table 2 or Table X1.2 whererequired.

12. Tensile Requirements

12.1 Limits—The tension test specimens representing thecastings shall conform to the requirements of Table 2.

12.2 Number of Tests—At least one tension test specimenshall be tested from each casting lot, or fraction thereof, to

TABLE 2 Tensile Requirements

NOTE 1—For purposes of determining conformance with this specification, each value for tensile strength and yield strength shall be rounded to thenearest 0.1 ksi and each value for elongation shall be rounded to the nearest 0.5 %, both in accordance with the rounding method of Practice E 29.

Alloy NumberTemperA

Tensile Strength, min,ksi (MPa)

Yield StrengthB (0.2 %offset), min, ksi (MPa)

Elongation in 2 in., (50.8mm) min, %ASTM UNS

AM100A M10100 T6 35.0(241) 17.0(117) C

AZ63A M11630 F 26.0(179) 11.0(76) 4T4 34.0(234) 11.0(76) 7T5 26.0(179) 12.0(83) 2T6 34.0(234) 16.0(110) 3

AZ81A M11810 T4 34.0(234) 11.0(76) 7AZ91C M11914 F 23.0(158) 11.0(76) C

T4 34.0(234) 11.0(76) 7T5 23.0(158) 12.0(83) 2T6 34.0(234) 16.0(110) 3

AZ91E M11919 T6 34.0(234) 16.0(110) 3AZ92A M11920 F 23.0(158) 11.0(76) C

T4 34.0(234) 11.0(76) 6T5 23.0(158) 12.0(83) C

T6 34.0(234) 18.0(124) 1EQ21A M18330 T6 34.0(234) 25.0(172) 2EZ33A M12330 T5 20.0(138) 14.0(96) 2K1A M18010 F 24.0(165) 6.0(41) 14QE22A M18220 T6 35.0(241) 25.0(172) 2WE43A M18430 T6 32.0(221) 25.0(172) 2WE43B M18432 T6 32.0(221) 25.0(172) 2WE54A M18410 T6 37.0(255) 26.0(179) 2ZC63A M16331 T6 28.0(193) 18.0(125) 2ZE41A M16410 T5 29.0(200) 19.5(133) 2.5ZE63A M16630 T6 40.0(276) 27.0(186) 5ZK51A M16510 T5 34.0(234) 20.0(138) 5ZK61A M16610 T6 40.0(276) 26.0(179) 5

AThese temper designations were established in accordance with Practice B 296.BSee X1.4.1.CNot required.

B 80

3


represent the castings poured from the same melt. If thecastings are to be heat treated, the specimens shall be heattreated with production castings of the same alloy and in thesame temper as the specimens. The specimens shall then betested to judge the ability of their corresponding melts torespond to the type of heat treatment to which the specimenswere subjected.

12.2.1 Test Specimens—The tension test specimens shall beseparately cast in the system sand mix in use and shall be castto size in accordance with the dimen