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IS 3074 (2005): Steel Tubes for Automotive Purposes [MTD19: Steel Tubes, Pipes abd Fittings]

IS 3074 : 2005

'J.f I'

AMENDJ!v1ENT NO.1 FEBRUARY 2006TO

is 3074: 2005 STEEL TUBES FOR AUTOMOTIVEPURPOSES - SPECIFICATION

( Second Revision)\ Page 6, Table 6, cot 3, row 2) - Substitute '0.60' for '0.20'.

( l\tlTD 19 )

Reprography Unit, BIS, New Delhi, India

AMENDMENT NO. 2 JUNE 2010 TO

IS 3074 : 2005 STEEL TUBES FOR AUTOMOTIVE PURPOSES SPECIFICATION

( Second Revision )

(Page 6, Table 6, col 3, row 2, read with Amendment No. 1) Substitute

1.20 for 0.60.

(Page 6, Table 6, col 3, row 3) Substitute 1.60 for 0.60. (MTD 19)

Reprography Unit, BIS, New Delhi, India

(MTD 19)

AMENDMENT NO. 3 OCTOBER 2010 TO

IS 3074 : 2005 STEEL TUBES FOR AUTOMOTIVE PURPOSES SPECIFICATION

(Second Revision )

(Page 6, Table 4, col. 2, row 3) Substitute '0.25' for '0.35'.

(Page 6, Table 4, col 3, row 3) Substitute ' 1.60' for ' 1.30'.

Reprography Unit, BIS, N e w Delhi, India

BS EN 10305-2 : 2002 (E)

DIN 239] (Part l) : ]994DIN 2391 (Part 2) : ]994

Steel Tubes, Pipes and Fittings Sectional Committee, MTD 19

FOREWORD

This Indian Standard (Second Revision) was adopted by the Bureau of Indian Standards, after the draft finalizedby the Steel Tubes, Pipes and Fittings Sectional Committee had been approved by the Metallurgical EngineeringDivision Council.

This standard was first published in ]965 and subsequently revised in 1979. As a result of the experience gainedsince its publication, it has been decided to revise this standard incorporating the following changes:

a) Provision relating to surface protection of pipes during transit, permissible fm height, flattening test andbundling and marking have been included.

b) A reference has been made to IS 5429.c) Due consideration has been given in this revision with regard to steel making practices and the end use

characteristics as required by the purchaser.d) The composition given for different types of steel tubes in this standard have been aligned with IS ]0748.

In the formulation of this standard due weightage has been given to international co-ordination among thestandards prevailing in different countries in addition to relating it to the practices in the field in this country.This has been met by deriving assistance from the following publications:

BS EN 10305-] : 2002 (E) Steel tubes for precision: applications - Technical delivery conditions -Part 1: Seamless cold drawn tubesSteel tubes for precision applications - Technical delivery conditions -Part 2 : Welded cold drawn tubesSeamless precision steel tubes dimension. Deutscher NormenausschussSeamless precision steel tubes cold-drawn or cold-rolled special gradeaccuracy - Technical deliver conditions. Deutsche Normenausschuss

For the purpose of deciding whether a particular requirement of this standard is complied with, the finalvalue, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance withIS 2 : 1960 'Rules for rounding off numerical value (revised)'. The number of significant places retained in therounded off value should be the same as that of the specified value in this standard.

IS 3074 : 2005

Indian StandardSTEEL TUBES FOR AUTOMOTIVE PURPOSES

SPECIFICATION(Second Revision)

2 REFERENCES

1 SCOPE

The following standards contain provisions whichthrough reference in this text, constitute provisions ofthis standard. Atthe time of publication, the editionsindicated were valid. All standards are subject torevision and parties to agreements based on thisstandard are encouraged to investigate the possibilityof applying the most recent editions of the standardindicated below:

1.1 This standard covers the requirements for steeltubes for use in automotives including scooters andmotorcycles, in sizes up to and including 114.3 mmoutside diameter and of the following types:

a) Cold drawn seamless steel (CDS) tubes,b) Welded steel tubes. This includes electric

resistance welded or high frequency inductionwelded (ERW/HFIW) tubes, and

c) Cold drawn electric resistance welded/ CEWSteel tubes/High frequency induction weldedsteel tubes.

1.2 Details of the grades of tube and materials dealtwith under each type are given in subsequent clauses.

1.3 All steel tubes covered by this standard shallcomply with the requirement laid down in Section Iand in addition with the requirements under eachappropriate section.

Titlepipes, tubes and fittings (firstrevision)Code of practice for packagingof steel tubes (first revision)Dimensions for steel tubes forautomotive purposes (firstrevision)Hot-rolled steel strip for weldedtubes and pipes - Specification(second revision)

IS No.

Tubes shall be free from loose rust, scale and otherharmful defects. Ends of tubes shall be cut square, ifrequired by the purchaser.

6 STRAIGHTNESS

7.1 The analysis of steel shall be carried out either bythe method specified in IS 228 and its relevant partsor any other established instrumental/chemicalmethods. In case of dispute, the procedure given inIS 228 and its relevant parts shall be the referee method.However, where method is not given in IS 228 and itsrelevant parts, the referee method shall be as agreedto between the purchaser and the manufacturer.

7 CHEMICAL COMPOSITION

5429: 1979

4.1 The steel for tubes shall be manufactured by open-hearth, electric, duplex or one of the basic oxygenprocesses or a combination of these processes. In case,any other process is employed in the manufacture, priorapproval of the purchaser shall be obtained.

4.2 Steel shall be supplied in killed condition andfree from harmful defects.

Unless otherwise agreed to between the purchaser andthe manufacturer, tubes shall not deviate fromstraightness by more than 1/600th of any length,measured at the centre of that length.

5 WORKMANSHIP

SECTION 1 GENERAL REQUIREMENTS

4 MATERIAL

General requirements relating to the supply ofmaterials shall be as laid down in IS 1387.

10748 : 2004

3 SUPPLY OF MATERIAL

4740: 1979

TitleMethods of chemical analysis ofsteelsGeneral requirements for thesupply ofmetallurgical materials(second revision)Metallic materials - Tensiletesting at ambient temperature(third revision)Metallic materials - Tube -Flattening test (secondrevision)Metallic materials - Tube -Drift expanding Test (secondrevision)Methods for sampling of steel

IS No.

2335 : 2005/ISO 8493 : 1998

1608: 2005/ISO 6892 : 1998

4711 : 1974

2328: 2005/ISO 8492 : 1998

1387: 1993

228

IS 3074 : 2005

7.1.1 Product Analysis

If so agreed between the purchaser and themanufacturer, the product analysis may be carried out.Maximum permissible variations in the case ofproductanalysis over the maximum limits specified inTables 2, 4 and 6 shall be as given in Table 1.

endwise without cracking, until its length is reducedby at least the specified percentage of the originallength. The length of the test piece shall be about oneand a half times the outside diameter of the tube andthe ends shall be cut square to the axis of the tube.

8.4 Drift Test

Table 1 Permissible Variations for ProductsAnalysis

Constituent

(I)

Variation OverfUnder theSpecified Limit Percent

Max

(2)

This test shall be carried out in accordance withIS 2335. Pieces of suitable length cut from the tubesshall be capable without cracking of being drifted toan included angle of 30 until the outside diameter isincreased by not less than the amount specified. Forthe purpose of this test tubes shall not be belled byspinning methods.

8.5 Re-test

8 MECHANICAL TESTS

NOTE -In case of welded tubes, product analysis shall not beapplicable to rimming steel.

8.1 Tensile Tests

Tensile test shall be made on lengths cut from the ends.of selected tubes (the ends being plugged for grips'where necessary or pressed flat by hammering) or onlongitudinal strips, not including the weld, cut fromtubes. The tensile strength, yield stress and thepercentage elongation shall be determined inaccordance with IS 1608 and shall be not less thanthat specified.

NOTES1 The specification does not stipulate upper limits for tensileand yield strength for any grade of material.2 There is no correlation between the values ofultimate tensilestrength and yield strength specified for different grades.

8.2 Flattening Test

Flattening test shall be made on lengths cut from theends of selected tubes in accordance with IS 2328. Thetubes shall be capable without showing crack or flawof being flattened until the distance between theparallel plates is not more than specified. In the caseof welded tubes the weld shall be placed at the pointof maximum curvature. The burrs may be removedbefore testing. Superficial ruptures resulting fromsurface imperfection shall not be the cause ofrejection.Flattening test ofwelded tubes shall be done by placingthe weld at both top (12 O'clock position) and at side(3 0' clock position)' .8.3 Crushing Test

The test piece shall be capable of being crushed

10 SURFACE PROTECTION

The dimensions and tolerances on thickness anddiameter shall be in accordance with IS 5429.

Should anyone of the test pieces first selected, fail topass any ofthe tests specified, two further samples shallbe selected for testing in respect of each failure. Incase the test pieces from both of these additionalsamples pass, the materials shall be deemed to complywith the requirements of that particular test. Shouldthe test pieces from either of these additional samplesfail, the material represented by the test samples shallbe deemed as not complying with the standard or themanufacturer may select to test individually theremaining lengths in the lot for the test failed to complyin the preceding tests.

8.6 Sampling

8.6.1 Sampling ofTubesFor the purpose of drawing samples all steel tubesbearing same designation and manufactured under asingle process shall be grouped together to constitutea lot. Each lot shall be sampled separately and assessedfor conformity to this specification.

8.6.2 Sampling and Criterion for ConformityUnless otherwise agreed to between the manufacturerand the purchaser or otherwise specified in thisstandard the procedure for sampling of tubes forvarious tests and criteria -for conformity shall be asgiven in IS 4711.

9 DIMENSIONS AND TOLERANCES

11.1 Each bundle of tube shall be suitably identifiedwith tlie manufacturer's name or trade-mark, size, typeand grade designation of the tube.

11 MARKING

The surface protection of tubes during transit shall beas per agreement between the purchaser and themanufacturer.

0.02

0.05

0.005

0.005

C

MnS

P

2

IS 3074 : 2005

whereH = distance between flattening plates keeping weld

at 90, in mm;t = specified wall thickness of tube, in mrn:

D = specified outside diameter of the tube in mrn;and

C = deformation factor (values are given below):

11.2 BIS Certification Marking

The tubes may also be marked with the Standard Mark.

11.2.1 The use of the Standard Mark is governed bythe provisions of the Bureau ofIndian Standards Act,1986 and the Rules and Regulations made thereunder.The details of conditions under which the licence forthe use of the Standard Mark may be granted tomanufacturers or producers may be obtained from theBureau of Indian Standards. Tube Designation Deformation

Factor, C

0.06

0.07

0.0912 BUNDLING AND PACKING

Bundling and packing of tubes shall be as mutuallyagreed to between the manufacturer and thepurchaser.

SECTION 2 COLD DRAWN SEAMLESSSTEEL TUBES (CDS)

13 GENERAL

13.1 This section of the standard covers cold drawnseamless steel tubes designated as CDS-I, CDS-2,CDS-3, CDS-4, CDS-5, CDS-6, CDS-7, CDS-8,CDS-9.

13.2 Tubes shall comply in all respects with therequirements specified in Sections 1 and 2 of thisstandard and shall be subjected to both chemicalanalysis and mechanical tests.


The chemical composition of steel shall be as givenin Table 2.

15 CONDITION

Tubes shall be supplied in anyone of the conditionsspecified in Table 3.

16 NUMBER OF MECHANICAL TESTS

Unless otherwise specified, the number of tests shallbe at the rate of one set of tests per 600 m oftubing orpart thereof.

17 MECHANICAL PROPERTIES

The mechanical properties obtained from test piecesselected and prepared as specified under 6 shall bewithin the limits specified in Table 3.

18 FLATTENING TEST

Following test shall be carried out in accordance withIS 2328 (see also 8.2). Annealed and normalized tubesshall be subjected to flattening test. The distance.between the parallel plates shall not be greater thancalculated from the following formula:

CDS-l (b), CDS-2(b), CDS-3(b)CDS-4(b)CDS-5(b), CDS-6(b), CDS-7(b)

SECTION 3 ELECTRIC RESISTANCEWELDED/HIGH FREQUENCY INDUCTION

WELDED STEEL TUBES (ERW/HFIW)19 GENERAL

19.1 This section of the standard covers threegrades of electric resistance welded/high frequencyinduction welded steel tubes, designated as ERW-1,ERW-2 and ERW-3.

19.1.1 Tubes shall be made from steel strip andresistance welded continuously by the passage of anelectric current across the abutting edges/h ighfrequency current is induced in the open seam tube byan induction coil located ahead of the weld point andshall comply in all respects with the requirementsspecified in Sections 1 and 3.


The chemical composition of steel shall be as given inTable 4.

21 CONDITION

Tubes shall be supplied as welded with the externalfin removed. In fin cut condition the maximum heightofthe fin shall not be more than 0.25 mm or otherwiseas agreed to between the manufacturer and thepurchaser. All tubes shall be of works man like finishfree from injurious defects and shall be reasonablystraight. The tubes may be supplied in heat treatedcondition provided that all the requirements of thisstandard are complied with.


The mechanical properties obtained from test piecesselected and prepared as specified in 8 shall be withinthe limits specified in Table 5.

23 HYDRAULIC TES-l

H = (1+C)tC+t/D

3

When required by the purchaser each tube shall besubjected to an internal hydraulic pressure test in

IS 3074 : 2005

accordance with the following requirements:a) Each tube shall be hydraulically tested to a

pressure of 7 Mpa (0.7 kgf/cm-) or I Y2 timesthe working pressure whichever is greaterprovided that in no case shall the pressure inducea stress in the wall of the tube greater than 0.9times the minimum yield stress specified forthat tube based on the following formula:

b)p =

2tfD

of electric resistance weld/high frequency inductionwelded and subsequently cold drawn steel tubes,designated as CEW-I, CEW-2 and CEW-3.

24.2 The tubes shall comply in all respects with therequirements specified in Sections I and 4 and shallbe subjected to both chemical analysis and mechanicaltests unless it is stated in the enquiry or order thatonly the chemical analysis or the mechanical tests arerequired.


whereP = pressure, in MPa (kgf/cm-);t = thickness of wall of tube, in mm;f = 0.9 times yield stress, in MPa (kgf/cm/);

andD = outside diameter of tube, in mm.

c) The pressure shall be maintained in each tubefor at least 5 seconds and there shall be no signof leakage during the test.

SECTION 4 COLD DRAWN ELECTRICRESISTANCE WELDED/HIGH FREQUENCYINDUCTION WELDED STEEL TUBES (CEW)

24 GENERAL

124.1 This section of the standard covers three grades

The chemical composition of steel shall be as givenin Table 6.

26 CONDITION

Tubes shall be supplied in the condition specified inTable 7.


The mechanical properties obtained from test piecesselected and prepared as specified in 8 shall be withinthe 'limits specified in Table 7.

28 HYDRAULIC TEST

When required by the purchaser, each tube shallbe subjected to an internal hydraulic pressuretest in accordance with the requirements givenunder 23. .

Table 2 Chemical Composition for Cold Drawn Seamless Steel Tubes (CDS)(Clause 14)

Tube C 8i Mn Ni Cr Mo 8 PDesignation Percent Percent Percent Percent Percent Percent Max Max

(I) (2) (3) (4) (5) (6) (7) (8) (9)

CDS-l 0.20 Max 0.30-0.60 0.04 0.04

CDS-2 0.10-0.18 0.40-0.70 0.04 0.04

CDS-3 0.10-0.20 0.60-0.90 0.04 0.04

CDS-4 0.30-0.40 0.60-0.90 0.04 0.04

CDS-5 0.45-0.55 0.60-0.90 0.04 0.04

CDS-6 0.16-0.24 0.10-0.35 1.30-1.70 0.04 0.04

CDS-7 . 0.26Max 0.10-0.35 0.50-0.80 0.90-1.20 0.20-0.35 0.04 0.04

CDS-8 0.35-0.45 0.10-0.35 0.50-0.80 0.90-1.20 0.20-0.35 0.04 0.04

CDS-9 0.10-0.20 0.10-0.35 0.60-1.00 0.60-1.00 0.40-0.80 0.04 0.04

4

IS 3074: 2005

Table 3 Mechanical Properties for Cold Drawn Seamless Steel Tubes (CDS)(Clauses 15 and 17)

Tube Conditions Tensile Strength Yield StressDesignation MPa MPa

(kgflmm') (kgf/mm')Min Min

(I) (2) (3) (4)

CDS-l a) As drawn or as drawn and tempered 430 (44) 370 (38)

b) As drawn and normalized/annealed 310 (32) 160 (17)

c) As drawn and brazed or welded 310 (32) 160 (17)

CDS2 a) As drawn or as drawn and tempered 430 (44) 370 (38)




b) If subsequently annealed, brazed or welded 330 (34) 180 (19)







CDS-6 a) As drawn or as drawn and tempered 630 (64) 510 (52)




b) If subsequently annealed, brazed or welded 550 (56) 390 (40)

CDS8 As drawn or heat-treated 710 (72) 590 (60)

CDS9 Oil quenched and tempered 640 (65) 440 (45)

I MPa= I N/mm'= 0.102 kgf/mm'.

Crushing TestPercent.

Min

(5)

25

50

25

50

25

25

50

25

25

50

5

IS 3074: 2005

Table 4 Chemical Composition for Electric Resistance Welded/High Frequency InductionWelded Steel Tubes (ERW/HFIW)

(Clause 20)Tube C Mn S P

Designation Percent Percent Percent PercentMax Max Max Max

(1) (2) (3) (4) (5)

ERWI 0.12 0.60 0.04 0.04

ERW2 0.25 1.20 0.04 0.04

ERW3 0.35 1.30 0.04 0.04

Table 5 Mechanical Properties for Electric Resistance Welded/High Frequency InductionWelded Steel Tubes (ERW/HFIW)

(Clause 22)Tube Tensile Yield Percent Distance Drifting

Designation Strength Stress Elongation Between TestMPa MPa on S;6S..;s: Parallel Percent

(kgflmm2) (kgflmm2) (Gauge Plate MinMin Length)

(1) (2) (3) (4) (5) (6)

ERWI 310 (32) 160 (17) 20 2t 12Y>

ERW2 380 (39) 240 (25) 15 3t 10

If subsequently 330 (34) 180 (19)Annealed, brazedor welded

ERW3 430 (44) 270 (28) 10 5t 7Y>

Ifsubsequently 380 (39) 240 (25)Annealed, brazedor welded

NOTE - 1 MPa= IN/mm2=0.I02 kgfimm2

Table 6 Chemical Composition for Cold Drawn Electric Resistance High FrequencyInduction Welded Steel Tubes

(Clause 25)

Tube C Mn S PDesignation Percent Percent Percent Percent

Max Max Max Max

(1) (2) (3) (4) (5)CEW-I 0.12 0.60 0.04 0.04

CEW2 0.25 0.20 0.04 0.04

CEW3 0.25 0.60 0,04 0.04

6

IS 3074 : 2005

Table 7 Mechanical Properties for Cold Drawn Electric Resistance WeldedlHighFrequency Induction Welded Steel Tubes (CEW)

(Clauses 26 and 27)

Tube Condition Tensile Yield Stress,Designation Strength, MPa MPa (kgf/mm 2)

(kgf/mm2) Min Min(I) (2) (3) (4)

CEWI AnnealedINormalized 310 (32) 160 (17)As drawn or as drawn and tempered 430 (44) 370 (38)If subsequently annealed, brazed or welded 330 (34) 180 (19)

CEW2 AnnealedINormalized 430 (44) 270 (28)As drawn or as drawn and tempered 550 (56) 450 (46)Ifsubsequently annealed, brazed or welded 430 (44) 270 (28)

CEW-3 AnnealedINormalized 470 (48) 340 (35)

As drawn or as drawn and tempered 590 (60) 430 (44)

NOTE-I MPa= I N/mm2=O.l02kgf/mm2,

CrushingTest, Percent

Min

(5)50

25

50

25

50

25

7

Bureau of Indian Standards

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promoteharmonious development of the activities of standardization, marking and quality certification of goods andattending to connected matters in the country.

Copyright

BIShas the copyright of all its publications. No part of these publications may be reproduced in any formwithout the prior permission in writing of BIS. This does not preclude the free use, in the course of implementingthe standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating tocopyright be addressed to the Director (Publications), BIS.Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewedperiodically; a standard along with amendments is reaffirmed when such review indicates that no changes areneeded; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standardsshould ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of'BIS Catalogue' and 'Standards: Monthly Additions'. '

This Indian Standard has been developed from Doc: No. MTD 19 (4588).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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