Vallourec Steel grades for Sour Service

SOUR SERVICES seriesSS seriesSS-D seriesHCS seriesHCSS series

HIGH COLLAPSE

13CR/SUPER13CR

Sour service grades

Sour service Vallourec grades

High Collapse & Sour Service Val lourec grades

VallourecedoC roloCstset CSSCRHA dohteMssendraHyrateirporP

HRC(ksi) (MPa) (ksi) (MPa) (max) (SMYS) (ksiV in) (MPaV m) (nb. pipe) (Method A or D)

Time Saving Sour Service grades Same chemistry as SS series + 85% SMYS garantied NACE method A + 30 days faster leadtimeo/w%01%580.42096001427 - 126501 - 09S 09 MVo/w%01%580.52427501857 - 556011 - 59S 59 MV

Enhanced Sour Service grades Fully API compliant * + 85% / 90% SMYS guarantied + test NACE method A providedA dohteM%01%090.2255659556 - 25559 - 08SS 08 MVA dohteM%001%090.42096001427 - 126501 - 09SS 09 MVA dohteM%001%090.52427501857 - 556011 - 59SS 59 MVA dohteM%001%580.03828021268 - 857521 - 011* SS 011 MV

NACE-D Sour Service grades Fully API compliant * + 85% / 90% SMYS guarantied + K1SSC guarantied + NACE method D test providedVM 95 SS-D 95 - 110 655 - 758 105 724 25.4 90%** 30 - 33 33 - 36 100% Method D

VM 110 SS-D * 110 -125 758 - 862 120 828 30.0 85% 22 - 24 24 - 27 100% Method D* VM 110 SS and VM 110 SS-D follow the QA/QC philosophy of T95** For very heavy coupling stock, Method A guaranty is 85% SMYS. Please contact us.

Method DGrades

Yield Strength Ultimate StrengthVallourec Guaranty QC providedMechanical properties

-

min - max min min single - min avg

- -

- - -

edoC roloCstset CSSCRHssendraHyrateirporPHRC

(ksi) (MPa) (ksi) (MPa) (max) (nb. pipe) (Method A or D)

Time Saving High Collapse & Sour Service grades Same chemistry as HCSS series + 85% SMYS garantied NACE-A + 30 days faster leadtime

o/w%010.42096001427 - 126501 - 09SCH 09 MVo/w%010.52427501857 - 556011 - 59SCH 59 MV

Enhanced High Collapse & Sour Service grades Fully API compliant * + 85% / 90% SMYS guarantied NACE-A + NACE-A tests provided

A dohteM%010.2255659556 - 25559 - 08SSCH 08 MVA dohteM%0010.42096001427 - 126501 - 09SSCH 09 MVA dohteM%0010.52427501857 - 556011 - 59SSCH 59 MVA dohteM%0010.03828021268 - 857521 - 011* SSCH 011 MV

* VM 110 SS and VM 110 SS-D follow the QA/QC philosophy of T95

85%

85%85%

90%90%90%

Mechanical properties

GradesA dohteMhtgnertS etamitlUhtgnertS dleiY

(SMYS)min - max min

QC providedVallourec Vallourec Guaranty

Nominal Nominal

Weight Weightin. mm lb/ft in. mm psi MPa psi MPa psi MPa psi MPa in. mm lb/ft in. mm psi MPa psi MPa psi MPa psi MPa

4·1/2" 114.3 11.60 0.250 6.35 7490 51.6 8230 56.7 8580 59.2 9590 66.2 10" 254.0 54.30 0.531 13.49 7000 48.2 7670 52.9 7990 55.1 8900 61.44·1/2" 114.3 13.50 0.290 7.37 9280 64.0 10260 70.7 11090 76.5 12100 83.5 10" 254.0 60.30 0.595 15.11 8290 57.1 9130 63.0 9540 65.8 10710 73.84·1/2" 114.3 15.10 0.337 8.56 11390 78.5 12640 87.2 13260 91.4 15050 103.8 10" 254.0 68.90 0.688 17.48 10160 70.1 11250 77.6 11790 81.3 13330 91.9 5" 127.0 15.00 0.296 7.52 8220 56.7 9060 62.5 9470 65.3 10620 73.2 10·3/4" 273.1 51.00 0.450 11.43 4730 32.6 4790 33.1 4790 33.1 4790 33.1 5" 127.0 18.00 0.362 9.19 10890 75.1 12080 83.3 12660 87.3 14350 98.9 10·3/4" 273.1 55.50 0.495 12.57 5570 38.4 6060 41.8 6290 43.3 6440 44.4

5·1/2" 139.7 17.00 0.304 7.72 7430 51.3 8160 56.3 8520 58.7 9510 65.6 10·3/4" 273.1 60.70 0.545 13.84 6510 44.9 7120 49.1 7410 51.1 8220 56.75·1/2" 139.7 20.00 0.361 9.17 9520 65.7 10530 72.6 11410 78.7 12440 85.8 10·3/4" 273.1 65.70 0.595 15.11 7450 51.4 8180 56.4 8530 58.8 9540 65.85·1/2" 139.7 23.00 0.415 10.54 11500 79.3 12770 88.1 13390 92.4 15210 104.9 10·3/4" 273.1 68.80 0.636 16.15 8220 56.7 9050 62.4 9460 65.2 10610 73.25·1/2" 139.7 26.80 0.500 12.70 14550 100.3 16300 112.4 17130 118.1 19570 135.0 10·3/4" 273.1 73.20 0.672 17.07 8890 61.3 9820 67.7 10270 70.8 11560 79.76·5/8" 168.3 24.00 0.352 8.94 7000 48.3 7680 52.9 8000 55.2 8910 61.4 10·3/4" 273.1 79.20 0.734 18.64 10060 69.3 11130 76.8 11660 80.4 13190 90.96·5/8" 168.3 28.00 0.417 10.59 8980 61.9 9920 68.4 10370 71.5 11680 80.5 11·3/4 298.5 54.00 0.435 11.05 3280 22.6 3280 22.6 3280 22.6 3280 22.66·5/8" 168.3 32.00 0.475 12.07 10740 74.1 11910 82.2 12490 86.1 14150 97.6 11·3/4 298.5 60.00 0.489 12.42 4680 32.3 4710 32.5 4710 32.5 4710 32.5

7" 177.8 23.00 0.317 8.05 5420 37.4 5880 40.6 6110 42.1 6110 42.1 11·3/4 298.5 65.00 0.534 13.56 5450 37.6 5920 40.8 6140 42.3 6180 42.6 7" 177.8 26.00 0.362 9.19 6720 46.3 7350 50.7 7740 53.4 8510 58.7 11·3/4 298.5 71.00 0.582 14.78 6280 43.3 6850 47.3 7130 49.1 7890 54.4 7" 177.8 29.00 0.408 10.36 8040 55.4 8850 61.0 9400 64.8 10370 71.5 11·3/4 298.5 75.00 0.618 15.70 6890 47.5 7550 52.1 7870 54.3 8760 60.4 7" 177.8 32.00 0.453 11.51 9340 64.4 10320 71.2 11160 77.0 12180 84.0 11·7/8" 301.6 71.80 0.582 14.78 6170 42.5 6730 46.4 7000 48.3 7750 53.4 7" 177.8 35.00 0.498 12.65 10630 73.3 11790 81.3 12910 89.0 13990 96.5 12" 304.8 68.00 0.547 13.89 5480 37.8 5950 41.0 6170 42.6 6240 43.0 7" 177.8 38.00 0.540 13.72 11840 81.7 13160 90.7 13800 95.2 15690 108.2 12" 304.8 73.00 0.589 14.96 6190 42.6 6750 46.6 7020 48.4 7770 53.6 7" 177.8 41.00 0.590 14.99 13280 91.6 14790 102.0 15530 107.1 17700 122.1 12" 304.8 76.00 0.610 15.49 6540 45.1 7150 49.3 7440 51.3 8260 57.0 7" 177.8 42.70 0.625 15.88 14290 98.5 15930 109.8 16740 115.4 19120 131.8 12" 304.8 86.50 0.707 17.96 8170 56.3 9000 62.0 9400 64.8 10540 72.7

7·5/8" 193.7 26.40 0.328 8.33 4960 34.2 5210 36.0 5210 36.0 5210 36.0 12·3/4" 323.9 57.60 0.433 11.00 2520 17.4 2520 17.4 2520 17.4 2520 17.4 7·5/8" 193.7 29.70 0.375 9.53 6200 42.8 6770 46.7 7040 48.6 7800 53.7 12·3/4" 323.9 65.10 0.492 12.50 3730 25.7 3730 25.7 3730 25.7 3730 25.7 7·5/8" 193.7 33.70 0.430 10.92 7660 52.8 8420 58.1 8790 60.6 9830 67.8 12·3/4" 323.9 70.10 0.531 13.49 4690 32.3 4720 32.5 4720 32.5 4720 32.5 7·5/8" 193.7 39.00 0.500 12.70 9510 65.6 10520 72.5 11010 75.9 12420 85.7 12·7/8" 327.0 66.60 0.495 12.57 3690 25.4 3690 25.4 3690 25.4 3690 25.4 7·5/8" 193.7 41.00 0.537 13.64 10490 72.3 11620 80.2 12180 84.0 13790 95.1 13·3/8" 339.7 61.00 0.430 10.92 2130 14.7 2130 14.7 2130 14.7 2130 14.7 7·5/8" 193.7 42.80 0.562 14.27 11150 76.9 12370 85.3 12970 89.4 14720 101.5 13·3/8" 339.7 68.00 0.480 12.19 2980 20.6 2980 20.6 2980 20.6 2980 20.6 7·5/8" 193.7 45.30 0.595 15.11 12020 82.9 13360 92.1 14020 96.7 15940 109.9 13·3/8" 339.7 72.00 0.514 13.06 3900 26.9 3900 26.9 3900 26.9 3900 26.9 7·5/8" 193.7 47.10 0.625 15.88 12810 88.4 14260 98.3 14970 103.2 17050 117.6 13·3/8" 339.7 77.00 0.550 13.97 4540 31.3 4540 31.3 4540 31.3 4540 31.3 7·3/4" 196.9 46.10 0.595 15.11 11770 81.1 13070 90.1 13710 94.6 15580 107.5 13·3/8" 339.7 80.70 0.580 14.73 5030 34.7 5350 36.9 5350 36.9 5350 36.9 8·5/8" 219.1 36.00 0.400 10.16 5640 38.9 6130 42.3 6370 43.9 6580 45.4 13·3/8" 339.7 86.00 0.625 15.88 5710 39.4 6210 42.8 6450 44.5 6560 45.2 8·5/8" 219.1 40.00 0.450 11.43 6810 46.9 7460 51.4 7770 53.6 8640 59.6 13·1/2" 342.9 81.40 0.580 14.73 4950 34.1 5190 35.8 5190 35.8 5190 35.8 8·5/8" 219.1 44.00 0.500 12.70 7980 55.0 8780 60.5 9170 63.2 10280 70.9 13·5/8" 346.1 88.20 0.625 15.88 5540 38.2 6010 41.4 6240 43.0 6370 43.9 8·5/8" 219.1 49.00 0.557 14.15 9310 64.2 10290 70.9 10770 74.2 12140 83.7 13·5/8" 346.1 105.00 0.760 19.30 7540 52.0 8280 57.1 8640 59.6 9660 66.6 8·5/8" 219.1 52.00 0.595 15.11 10200 70.3 11300 77.9 11830 81.6 13390 92.3 14" 355.6 82.5 0.562 14.27 4210 29.0 4210 29.0 4210 29.0 4210 29.0 9·5/8" 244.5 40.00 0.395 10.03 4480 30.9 4480 30.9 4480 30.9 4480 30.9 14" 355.6 94.80 0.656 16.66 5740 39.6 6240 43.0 6480 44.7 6790 46.8 9·5/8" 244.5 43.50 0.435 11.05 5400 37.2 5860 40.4 6080 41.9 6080 41.9 14" 355.6 99.30 0.688 17.48 6200 42.7 6770 46.6 7030 48.5 7780 53.7 9·5/8" 244.5 47.00 0.472 11.99 6180 42.6 6740 46.5 7090 48.9 7570 52.2 14" 355.6 103.50 0.720 18.29 6660 45.9 7290 50.2 7590 52.3 8430 58.1 9·5/8" 244.5 53.50 0.545 13.84 7710 53.1 8470 58.4 8950 61.7 9900 68.2 14" 355.6 110.00 0.772 19.61 7410 51.1 8140 56.1 8590 59.2 9480 65.4 9·5/8" 244.5 58.40 0.595 15.11 8750 60.3 9660 66.6 10360 71.4 11360 78.3 16" 406.4 75.00 0.438 11.13 1300 9.0 1300 9.0 1300 9.0 1300 9.0 9·5/8" 244.5 59.40 0.609 15.47 9050 62.4 9990 68.9 10450 72.1 11770 81.2 16" 406.4 84.00 0.495 12.57 1890 13.0 1890 13.0 1890 13.0 1890 13.0 9·5/8" 244.5 61.10 0.625 15.88 9380 64.7 10370 71.5 10850 74.8 12240 84.4 16" 406.4 94.50 0.562 14.27 2790 19.3 2790 19.3 2790 19.3 2790 19.3 9·5/8" 244.5 64.90 0.672 17.07 10370 71.5 11490 79.2 12030 83.0 13620 93.9 16" 406.4 109.00 0.656 16.66 4500 31.0 4500 31.0 4500 31.0 4500 31.0 9·5/8" 244.5 70.30 0.734 18.64 11660 80.4 12960 89.3 13590 93.7 15440 106.4 16" 406.4 118.00 0.715 18.16 5300 36.5 5750 39.6 5870 40.5 5870 40.5 9·3/4" 247.7 59.20 0.595 15.11 8590 59.2 9480 65.4 9910 68.3 11140 76.8 16" 406.4 128.00 0.781 19.84 6130 42.3 6690 46.1 6950 48.0 7690 53.0 9·7/8" 250.8 62.60 0.625 15.88 9050 62.4 10000 68.9 10780 74.3 11780 81.2 16" 406.4 147.00 0.906 23.01 7710 53.1 8470 58.4 8840 61.0 9900 68.2

OD OD HCSS HCS, HCSSHCSSWall Thickness HCSS HCS, HCSS HCS, HCSS HCS, HCSS HCSS

HIGH COLLAPSE RESISTANCENominal 80 ksi 90 ksi 95 ksi 110 ksi

DIMENSIONS

Wall Thickness

SizeECNATSISER ESPALLOC HGIHSNOISNEMID

Nominal 80 ksi 90 ksi 95 ksi 110 ksiSize

Sour Service in OCTG

“Sour Service” refers to a well environment containing HydrogenSulfide (H2S), which is naturally associated with acidic condi-tions.H2S comes from the decomposition of organic material, so that itis often found in oil & gas environments which derive from thesame phenomenon. Even if not sour at the onset, some wellsbecome sour over time, as (H2S) bearing formation water starts toflow together with oil.It is well known that H2S is a hazard to human health, livingorganisms, and more generally to the environment. That is thereason why historically the wells found with “Sour” environmentwere often and carefully plugged and abandoned! With the firstoil crisis in 1973, the need for other sources of supply and thehigh price of oil drove the technology to cope more systemati-cally with this hazardous environment.Today Sour Service environments provide further challenges withdeeper wells, higher pressures and extreme corrosive conditions.Vallourec OCTG material suitable for Sour Service conditionsprovide solutions to push these limits on a safe and reliable man-ner.

1. Definition and Standards

The National Association of Corrosion Engineers (NACE) for-med a committee in the 1950’s to help understand and avoid fai-lures caused by H2S. A first standard (MR0175) was published in1975: It defined “Sour Service” conditions as a threshold on thepartial pressure of H2S : P [H2S] > 0.05 psi.

Today, a new international standard, ISO 15156 has emerged. Itcombines the findings of the European Federation of Corrosion(EFC) with those of NACE. This standard defines the metallicmaterial requirements to provide resistance to Sulfide StressCracking (SSC).

It introduced pH as an additional major factor influencing howcritical the environment is, along with specific tests that havebecome standard in order to qualify material for “Sour Service”environment.

2. Sulfide Stress Cracking

The physical phenomenon associated with “Sour Service” environ-ment is known as “Sulfide Stress Cracking” (SSC) or “H2S embrit-tlement”. H2S in combination with water and low pH, willrelease free hydrogen. Due to its small size the hydrogen particlesare adsorbed by the material and interact with the steel whichbecomes brittle. Two key activating factors are low temperatureand high stress state of the material. Under unfavourable combi-nations of all these factors, a crack can initiate in the materialand propagate until catastrophic failure.

It is important to note that these crack failures can occur withstresses below the elastic limit of the material.

3. The major influence of Temperature

The key influence of H2S partial pressure makes it clear that highpressure wells are more critical in Sour Service environments. Buthigh pressure often relates to high temperature which is wellknown to be an inactivating factor of the embrittlement pheno-menon.

The risk actually lays at the top of the well where the pressure isstill high, but temperature has decreased due to thermal losses,thus activating the sulfide stress cracking.

In that regard, materials according to API 5CT (ISO 11960) docomply with NACE MR0175, as a function of temperature level.Outside these envelopes proprietary grades are required.

Sour Service grades

4. Material evaluation

The objective is to assess whether a given material is suitable forSour Service conditions. NACE TM0177 has defined and normali-zed several tests: Methods A to D. They typically use a critical andnormalized sour service environment called “environment A” (withthe exception of Method B that does not require NaCl addition).They differ by the way the stress is applied to the test specimen andcan fit into 2 categories :

n Go / No Go type tests provide a binary result: Either the materialpasses the test or not. NACE methods A, B and C belong to thisfirst category.

nMethod D provides a level of performance through the measure-ment of the crack propagation.

This allows comparison and continuous ranking of materials.

To be considered suitable for Sour Service environments, a materialhas to pass at least one of these tests. Methods A and D are the mostcommonly used in the industry.

5. NACE Method “A”

Cylindrical samples are manufactured from the base material,taken longitudinally. Sample is enclosed into the sour environ-ment, with tension load inducing commonly 80% of SpecifiedMinimum Yield Strength (SMYS). Duration is 720 hours or 30days.

6. NACE Method “D”

A Double Cantilever Beam (DCB) is manufactured from the basematerial, taken longitudinally. A tapered wedge is used to load thetest specimen which is then, enclosed in the sour environment, for360 hours (15 days).

The sample is then retrieved, failed open, and the crack length mea-sured. The resistance to crack propagation K1SSC is calculated, pro-viding a direct numerical rating. Acceptance criterion is defined byAPI 5CT, for example the K1SSC minimum average value for gradeT95 should be not less than 30 ksiV in.

7. Standard Sour Service material

C90 and T95 are the dedicated API grades suitable for Sour Serviceenvironments. They comply with the following requirements :n Chemical compositionn Grain size finer than ASTM 5n Hardness limitationn NACE tests (TM 0177), methods A,B or D.Lower API grades including J55, K55, or L80 are also granted sui-tability.

8. Vallourec proprietary Sour Service grades

The know-how at Vallourec has demonstrated that material suita-ble for sour service environments should be designed and manufac-tured by carefully designing and controlling the following parame-ters :n Cleanliness To avoid inclusion and segregationn Grain size Fine martensitic microstructuren Homogeneity Even distribution of characteristicsn Stability Complete release of quenching stresses

A unique expertise and extensive product offer have been developedbased on: n Chromium - Molybdenum steel chemistry;n Low Sulfur and Phosphorus content;n Improved Grain size finer than ASTM 7;n Dedicated quenching process, adapted to heavy pipe up to 2” inwall thickness (ID-OD quenching);

n 100% Non-Destructive Examination (NDE); n Extensive database of NACE test results.

Vallourec Sour Service range is composed of 3 series to fulfil thecustomers’ requirements with regards to the mechanical propertiesand level of reliability:

S series “Time Saving”

nAvailable in grades 90 and 95 ksi.n Same chemistry and process as SS series.n 85% threshold stress guaranty, higher than 80% in API.n Reduced lead time, as fast as for standard grades, thanks to themill quality record that proves SSC resistance without additionalNACE method A test.

SS series “Enhanced API”

nAvailable in grades 80 to 110 ksi.n Fully compliant with API (or its QA/QC philosophy for VM 110SS grade).

n 85% / 90% threshold stress guaranty, higher than 80% in API.n Delivered with NACE method A test.

SS-D series “NACE-D”

nAvailable in grades 95 and 110 ksi.n Fully compliant with API (or its QA/QC philosophy for VM 110 SS-D)n 85% / 90% threshold stress guaranty, higher than API.n K1SSC guaranty, higher than API. n Delivered with NACE method D test.

9. Sour Service & High Collapse grades

Vallourec has combined its expertise on Sour Service applicationsalong with that on High Pressure environments to cope with the mostdemanding High Pressure - High Temperature (HP-HT) projects: This has led to the High Collapse & Sour Service product line:

10. Vallourec Sour Service grade added-value

Vallourec proprietary Sour Service grades can thus offer:

n A larger domain of application and an enhanced safety marginthrough the SSC resistance guaranteed and demonstrated up to90% of the material Yield Strength v.s. 80% with API (NACEmethod A test);

n Higher Strength materials, like VM110SS-D or VM110HCSSwith 110 ksi Yield Strength;

n Enhanced reliability of the product and its delivery thanks to theimproved Quality Control and Quality Assurance;

n Reduced lead time thanks to Vallourec proven success record inperforming NACE testing, allowing parallel shipping of thematerial;

n Heavy pipe and coupling stock up to 2” in wall thickness, withthe same Sour Service guaranty;

n Top performance and reliability in HP-HT wells, when combinedwith Vallourec High Collapse technology.

11. Fit-for-purpose approach

Beyond API and proprietary Sour Service grades, “taylor-made”products, services, or characterization may be required to fulfil cus-tomer highest profile projects.

Vallourec offers a complete engineering approach to satisfy specificneeds including :

n Special sizes, for HP-HT wells in particular;

n Vallourec SSC data base with more than 10,000 test results,including DCB tests;

NACE TM01 77 method A : tensile test results

60

70

80

90

100

90 95 100 105 110

Yield strength (ksi)

Ap

plie

d s

tres

s (k

si)

VM90SS @ 90% SMYS

90% actual YS

C90 @ 80% SMYS

T95@ 80% SMYS

VM95SS @ 90% SMYS

Vallourec APIstset CSSA dohteMecnereferyrateirporP

(SMYS) (ksiV in) (Method A or D)

o/w%58*59C*SCH 09 MVo/w%5859CSCH 59 MV

A dohteM%0908LSSCH 08 MVA dohteM%0909CSSCH 09 MVA dohteM%0959TSSCH 59 MVA dohteM%58*59T* SSCH 011 MV

* In compliance with the QA/QC philosophy of the referred API standard

Grades

Time Saving High Collapse & Sour Service grades

-

Vallourec Guaranty dedivorp CQMethod D

Enhanced High Collapse & Sour Service grades -

- - -

min single - min avg

-

Sour Service grades

Vallourecstset CSSA dohteMecnereferyrateirporP

(SMYS) (ksiV in) (Method A or D)

o/w%58*59C*S 09 MVo/w%5859CS 59 MV

A dohteM%0908LSS 08 MVA dohteM%0909CSS 09 MVA dohteM%0959TSS 59 MVA dohteM%58*59T* SS 011 MV

VM 95 SS-D T95 90%** 30 - 33 Method DVM 110 SS-D * T95* 85% 22 - 24 Method D

* In compliance with the QA/QC philosophy of the referred API standard** For very heavy coupling stock, Method A guaranty is 85% SMYS

- -

min single - min avg

-

Vallourec Guaranty dedivorp CQ

NACE-D Sour Service grades

Grades

Time Saving Sour Service grades

-

Method D

Enhanced Sour Service grades -

-

API

n Special NACE testing with adapted objectives, parameters andtargets;

n Close coordination with customers and material experts to fitthe global Sour Service evaluation into an operating plan;

n Faster lead time approach extended to higher grades likeVM80SS upon request and agreed quality plan.

There are more than 20 scientists and material experts working inour 3 Research & Development laboratories located in Franceand Germany. They can elaborate mini-heats on their own, per-form more than 600 SSC tests per month at full thrust, and relyon the full support of 16 steel and pipe manufacturing millsaround the world.

12. First class processing capacity

Steel elaboration is processed in 4 mills inFrance, USA, Brazil and Germany includingthe long-lasting relationship with first-classsupplier HKM (Hüttenwerke KRUPPMAN-NESMANN), in which Vallourec holds a30% share. Combined capacity and supplysources reach 3.5 million tons per year.Equipment includes electric furnaces fedfrom scrap, blast furnaces (BOF) fed withiron ore, vacuum degassing batches, continuous cast to producesteel rounds and forging equipment.

Pipe manufacturing is processed in 11mills in France, Germany, UK, USA,Brazil and Indonesia with Citra Tubindoin which Vallourec holds a 25% share.Combined seamless capacity reaches 2.7million tons per year. Equipment includes:

Advanced hot-rolled processes: Pilger mill, continuous mandrelmill, plug rolling mill, mpm mill, …

Heat treatments with computer controlled austenitizing and tem-pering furnaces, internal and / or external quenching units.

Non-destructive evaluation on or off line, including the latestultra-sonic technology like phased-array, capturing defects twiceas small as API, and C-Scan.

Pipe finishing for OCTG market includes full length mill threa-ding and stock management in 9 facilities around the world, inFrance, Germany, UK, USA, Canada, Mexico, Brazil andIndonesia, a VAM® Licensee network of more than 100 accessoryand repair shops around the world and a quality, documentationand gauge rental system managed by VAM® Services.

13. Field records: A selection

Vallourec has been involved in the most critical Sour Service appli-cations around the world. A high profile project in the Caspian Sea(*) provides a relevant example of critical conditions:nTD = 13,000 ft (4000 m)n BHP = 11,600 psi (800 bar)n H2S = 16%, CO2 = 3%, pH = 3 to 4nT = 5°F to 230°F (-15°C to 110°C)

Vallourec large spectrum of experience is further illustrated below:

4 1/2” 0.271” VM 80 SS North America5” 0.408” VM 95 HCS Far East 6 5/8” 0.417” VM 90 SS Caspian Sea7” 0.453” VM 95 S West Africa 7’’ 0.498” VM 110 SS-D North Sea8 5/8” 0.850” C90 Gulf of Mexico 9 5/8” 0.545” VM 110 SS Latin America 9 5/8” 0.595” VM 110H CSS Middle East 10 1/4” 0.800” T95 Caspian Sea10 3/4” 0.950” VM 110 SS North Sea14” 0.800” VM 95 SS-D Caspian Sea*

14. Product mix to the market

Sour Service material typically accounts for 13% of VallourecPremium pipe deliveries. Of this, 85% is Vallourec proprietarygrades, including 20% of high-tech High Collapse & SourService material. Higher grades represent 90% of deliveries,including 30% of top-of-the line 110 ksi Yield Strength material.

15. References

[1] Development of C110 grade for Sour Service, B. Orlans et al., Paper #147,1993 NACE Conference

[2] Heavy Wall casing in C110 grade for Sour Service, C. Linne et al., Paper#117, 1998 NACE Conference

[3] Experience in Corrosion Testing according to NACE standard TM0177Methods A and D on T95 grade steel for OCTG, R. Poepperling et al. , Paper#151, 2000 NACE Conference

[4] NACE TM0177 Method D test procedure (DCB), Learnings from comparativelaboratory testing, K. Szklarz et al. , Paper #3104, 2003 NACE Conference

BENEFITS

• Full range of products• Heavier and higher Yield Strength material• Improved Sulfide Stress Cracking resistance• Reliable quality and leadtime• Fit-for-purpose approach• Single source of your complete solution

Vallourec offers a large range of OCTG material suitable for Sour Service environment where H2S is pre-sent. It covers the requirements and parameters of such inhospitable conditions including high pres-sures, low temperatures, low pH, and more. More than anywhere else, reliability is paramount and Vallourec provides the required top-of-the-class expertise and know how.

Expertise and know-how

• Three Research & Development laboratories with more than20 engineers and technicians dedicated to the design of impro-ved steel chemistries

• Capacity to perform more than 600 corrosion tests per month

• All-in-one technical support: pipe, material, VAM® Premiumconnection and services

Supply Chain Management

• Full service provider: From steel making to pipe runin your well

• Reduced lead time thanks to NACE testing parallel tomanufacturing process

• Extensive VAM® licensee network for field repairs or accessories

• VAM® Field Service International: Inspection and running services

Full range of products

• Size range: 2 3/8” to 26” for OCTG

• Wall Thickness up to 2”

• Yield Strength: 55 to 150 ksi

• Grades: API and Vallourec proprietary grades

• Sour Service and High Collapse

• Connections: API and VAM®

• Taylor made products: Non standard OD, weight or gradeupon request

Integrated pipe manufacturer

• Design, process and control of proprietary steel chemistries

• 5 steel mills in France, Germany, USA, Brazil and several pipemills throughout the world dedicated to the production ofOCTGs

• Connection threading integrated to the pipe mills or strategically located to serve a market

• In house metallurgical testing and Non-DestructiveExamination

Reliable Products and Services

• Proprietary sour service grades with greater than API SulfideStress Cracking resistance

• Extensive NACE data bank for all NACE test methods

• Best-in-class quality control plan, including technologies withimproved sensitivity to defects and enhanced control frequency

Asia and Middle East

North America

South America

Europe

Sales Offices Steel Plants Manufacturing Plants Accessories and Repair VAM® Licensee Facilities VAM® Field Service International

Africa

SALES & SERVICES OFFICES

VALLOUREC OIL AND GAS FRANCEBoulogne Billancourt - FrancePhone +33 1 49093731contact.boulogne@vallourec.com

VALLOUREC DEUTSCHLAND GmbHDüsseldorf - GermanyPhone +49 211 960 2030kontakt@vallourec.com

VALLOUREC OIL & GAS UKAberdeenshire - United KingdomPhone +44 1224 279340

VALLOUREC NORGEStavanger - NorwayPhone +47 51 54 50 10

VALLOUREC OIL & GASAtyrau - KazakhstanPhone +7 7122 321958kontakt@vallourec.com

VALLOUREC RUSMoscow - RussiaPhone +7 495 787 49 30

VALLOUREC USA Corp.Houston, Texas - United StatesPhone +1 713 4793200info.vus-na@vallourec.com

VAM® USAHouston, Texas - United StatesPhone +1 281 8215510VAMUSAsales@vam-usa.com

VALLOUREC CANADAAlberta - CanadaPhone +1 403 2330119sales.vca-can@vallourec.com

VALLOUREC OIL & GAS MEXICOVeracruz - MexicoPhone +52 229 989 8716contacto.octg-mex@vallourec.com

SERVICES OFFICES

VAM® FIELD SERVICE INTERNATIONALAberdeenshire, - United KingdomPhone +44 1224 279380uk@vamfieldservice.com

VAM® FAR EASTSingaporePhone +65 6736 23 72singapore@vamfieldservice.com

VAM® FIELD SERVICE BEIJINGBeijing - Republic of ChinaPhone +86 10 5923 3008china@vamfieldservice.com VAM® FIELD SERVICE ANGOLALuanda - Republic of AngolaPhone +244 222 399 503angola@vamfieldservice.com VAM® CASPIANBaku - AzerbaijanPhone +994 124 927 673baku@vamfieldservice.com

VAM® SERVICESAulnoye Aymeries - FrancePhone +33 3 27 69 65 89

VALLOUREC OIL & GASCairo - EgyptPhone +2 022 521 26 89

VALLOUREC MIDDLE EAST FZEDubai - United Arab EmiratesPhone +971 4 815 0000

VALLOUREC OIL & GAS NIGERIALagos - NigeriaPhone +234 1 463 7456 / 7458

VALLOUREC OIL & GAS CHINABeijing - Republic of ChinaPhone +86 10 5923 3000

VALLOUREC ASIA PACIFIC(Citra Tubindo Pte Ltd)Singapore Phone +65 6533 8958sales@citratubindo.com

V ALLOUREC TUBOS DO BRASILRio de Janeiro - BrazilPhone +55 21 38738300vendas.octg-bra@vallourec.com

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