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Savoy Piping Inc. supplies API 5L Grade B Sour Service line pipe when the purchase order requires sour-service (H₂S) with NACE / HIC / SSC as specified.
Strength guide (API 5L Table 6 PSL1): yield min 245 (35,500) MPa (psi), tensile min 415 (60,200) MPa (psi).
Related: Grade B Sour · Grade B HIC · Grade B SSC ·
Grade B PSL2 Seamless ·
Grade B Pipe
Sour-service API 5L pipe is ordered for wet H₂S environments. Call out NACE MR0175/ISO 15156, HIC (TM0284), SSC (TM0177) and hardness limits on the PO — PSL2 alone is not sour service.
Also see: API 5L seamless line pipe hub · Carbon seamless hub · CS buttweld.
| API 5L Grade B Sour Service Pipe Specification | API 5L / ISO 3183 Hot Rolled. |
| API 5L Grade B Sour Service Pipe Grades | API 5L Grade B PSL1, PSL 2 / API 5L X42 PSL1, PSL 2 / API 5L X46 PSL1, PSL 2 /
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| API 5L Grade B Sour Service Pipe Type | Seamless |
| API 5L Grade B Sour Service Pipe Outer Diameter Size | 3/8" NB to 30" NB (Nominal Bore Size) |
| API 5L Grade B Sour Service Pipe Wall Thicknesss | Schedule 20 to Schedule XXS (Heavier On Request) Up to 250 mm Thicknesss |
| API 5L Grade B Sour Service Pipe Length | 5 to 7 Meters, 09 to 13 Meters, Single Random Length, Double Random Length And Customize Size. |
| API 5L Grade B Sour Service Pipe Ends | Plain Ends / Beveled Ends / Coupling |
| API 5L Grade B Sour Service Pipe Delivery Conditions | As Rolled, Normalizing Rolled, Thermomechanical Rolled / Formed, Normalizing Formed, Normalized and Tempered / Quenched and Tempered - BR / N / Q /T |
| API 5L Grade B Sour Service Pipe Coating | Epoxy Coating / Colour Paint Coating / 3LPE Coating. |
| API 5L Grade B Sour Service Pipe Other Testing | NACE MR0175, NACE TM0177, NACE TM0284, SSC TEST, SWC, H2 SERVICE, IBR, Etc. |
| API 5L Grade B Sour Service Pipe Dimension | All Pipes Tube Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API. |
| API 5L Grade B Sour Service Pipe Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Galavanizing / Heat Treatment |
| API 5L Grade B Sour Service Pipe Packaging | Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| API 5L Grade B Sour Service Pipe Shipment & Transportation | By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet |
| API 5L Grade B Sour Service Pipe Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab./ Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
H.1 IntroductionThis annex specifies additional provisions that apply for PSL 2 pipe that is ordered for sour service [see 7.2 c) 51 ] . |
Table H.1 ---Chemical composition for pipe with t ≤25,0 mm (0.984 in)
| Steel grade | Mass fraction, based upon heat and product analyses % maximum |
Carbon equivalent a % maximum |
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| C b | Si | Mn b | P | S | V | Nb | Ti | Other c, | CE llw | CE pcm | |
| SMLS and welded Pipes | |||||||||||
| L245NS or BNS | 0,14 | 0,40 | 1,35 | 0,020 | 0,003 e | f | f | 0,04 | g | 0,36 | 0,19 h |
| L290NS or X42NS | o,14 | 0,40 | 1,35 | 0,020 | 0,003 e | 0,05 | 0,05 | 0,04 | - | 0,36 | 0,19 h |
| L320NS or X46NS | 0,14 | 0,40 | 1,40 | 0,020 | 0,003 e | 0,07 | 0,05 | 0,04 | g | 0,38 | 0,20 h |
| L360NS or X52NS | 0,16 | 0,4 | 1,65 | 0,020 | 0,003 e | 0,10 | 0,05 | 0,04 | g | 0,43 | 0,22 h |
| L245QS or BQS | 0,14 | 0,40 | 1,35 | 0,020 | 0,003 e | 0,04 | 0,04 | 0,04 | - | 0,34 | 0,19 h |
| L 29QS or X42QS | 0,14 | 0,40 | 1,35 | 0,020 | 0,003 e | 0,04 | 0,04 | 0,04 | - | 0,34 | 0,19 h |
| L320QS or X46QS | 0,15 | 0,4 | 1,40 | 0,020 | 0,003 e | 0,05 | 0,05 | 0,04 | - | 0,36 | 0,20 h |
| L360QS or X52QS | 0,16 | 0,4 | 1,65 | 0,020 | 0,003 e | 0,07 | 0,05 | 0,04 | g | 0,39 | 0,20 h |
| L390QS or X56QS | 0,16 | 0,4 | 1,65 | 0,020 | 0,003 e | 0,07 | 0,05 | 0,04 | g | 0,40 | 0,21 h |
| L415QS or X60QS | 0,16 | 0,4 | 1,65 | 0,020 | 0,003 e | 0,08 | 0,05 | 0,04 | g,i,k | 0,41 | 0,22 h |
| L450QS or X65QS | 0,16 | 0,4 | 1,65 | 0,020 | 0,003 e | 0,09 | 0,05 | 0,06 | g,i,k | 0,42 | 0,22 h |
| L485QS or X70QS | 0,16 | 0,4 | 1,65 | 0,020 | 0,003 e | 0,09 | 0,05 | 0,06 | g,i,k | 0,42 | 0,22 h |
| welded pipe | |||||||||||
| L245MS or BMS | 0,10 | 0,40 | 1,25 | 0,020 | 0,002 e | 0,04 | 0,04 | 0,04 | - | - | 0,19 |
| L290MS or X42MS | 0,10 | 0,40 | 1,25 | 0,020 | 0,002 e | 0,04 | 0,04 | 0,04 | - | - | 0,19 |
| L320MS or X46 MS | 0,10 | 0,4 | 1,35 | 0,020 | 0,002 e | 0,05 | 0,05 | 0,04 | - | - | 0,20 |
| L360MS or X52 MS | 0,10 | 0,4 | 1,4 | 0,020 | 0,002 e | 0,05 | 0,06 | 0,04 | - | - | 0,20 |
| L390MS or X56 MS | 0,10 | 0,4 | 1,4 | 0,020 | 0,002 e | 0,06 | 0,08 | 0,04 | g | - | 0,21 |
| L415MS or X60 MS | 0,10 | 0,4 | 1,4 | 0,020 | 0,002 e | 0,08 | 0,08 | 0,06 | g,i | - | 0,21 |
| L450MS or X65MS | 0,10 | 0,4 | 1,60 | 0,020 | 0,002 e | 0,10 | 0,08 | 0,06 | g,i,j | - | 0,22 |
| L485MS or X70 MS | 0,10 | 0,4 | 1,60 | 0,020 | 0,002 e | 0,10 | 0,08 | 0,06 | g,i,j | - | 0,22 |
| a) Based upon product analysis (see 9.2.4 and 9.2.5) The CEllw limits apply if the carbon mass fraction is greater than 0,12 % and the CEpcm limits apply if the carbon mass fraction is less than or equal to 0,12 %. b) for each reduction of 0,01 % below the specified maximum for carbon, an increase of 0,05 % above the specified maximum for manganese is permissible, up to a maximum increase of 0,20 %. c) AI total ≤ 0,060 %; N ≤ 0,012 %; AI/N ≥ 2:1 (not applicable to titanium-killed or titanium-treated steel); Cu ≤ 0,35 % (if agreed ,Cu ≤ 0,10 %); Ni ≤ 0,30 %; Cr ≤ 0,30 %; Mo ≤ 0,15 %; B ≤ 0,0005 %. d) for welded pipe where calcium is intentionally added, unless otherwise agreed, Ca/s ≥ 1,5 if S > 0,0015 % for SMLS and welded Pipes, the calcium concentration shall be ≤ 0,006 %. e) The maximum limit for sulfur concentration may be increased to ≤ 0,008 % for SMLS pipe and, if agreed, to ≤ 0,006 % for welded pipe. for such higher-sulfur levels in welded pipe, lower Ca/s ratios may be agreed. f) Unless otherwise agreed, the sum of the niobium and vanadium concentrations shall be ≤ 0,06 %. g) The sum of the niobium, vanadium and titanium concentrations shall be ≤ 0,15 %. h) for SMLS pipe, the listed value may be increased by 0,03. i) If agreed, the molybdenum concentration shall be ≤ 0,35 %. j) If agreed, the the chromium concentration shall be ≤ 0,4 %. k) If agreed, Cr concentration shall be ≤ 0,4 % and Ni concentration shall be ≤ 0,50 %. |
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| Pipe steel grade | Pipe body of SMLS and welded Pipes | Weld seam of HFW and SAW Pipes | |||||
| Yield strength a Rto,5 Mpa (psi) |
Tensile strength a Rm Mpa (psi) |
Ratio b Rto,5/Rm |
Elongation on 50 mm or 2 in Af % |
Tensile strength c Rm Mpa (psi) |
|||
| minimum | maximum | minimum | maximum | maximum | minimum | minimum | |
| L245NS or BNS L245QS or BQS L245MS or BMS |
24 (35 500) |
40 (65 300) |
415 (60 200) |
760 (110 200) |
0,93 | e | 415 (60 200) |
| L290NS or X42NS L290QS or X42QS L290MS or X42MS |
29 (42 100) |
495 (71 800) |
415 (60 200) |
760 (110 200) |
0,93 | e | 415 (60 200) |
| L320NS or X46NS L320QS or X46QS L320MS or X46MS |
320 (46 400) |
525 (76 100) |
435 (63 100) |
760 (110 200) |
0,93 | e | 435 (63 100) |
| L360NS or X52NS L360QS or X52QS L360MS or X52MS |
360 (52 200 |
530 (76 90) |
460 (66 700) |
760 (110 200) |
0,93 | e | 460 (66 700) |
| L390QS or X56QS L390MS or X56MS |
39 (56 600) |
54 (79 000) |
49 (71 100) |
760 (110 200) |
0,93 | e | 49 (71 100) |
| L415QS or X60QS L415MS or X60MS |
415 (60 200) |
565 (81 90) |
520 (75 400) |
760 (110 200) |
0,93 | e | 520 (75 400) |
| L450QS or X65QS L450MS or X65MS |
40 (65 300) |
600 (87 000) |
535 (77 600) |
760 (110 200) |
0,93 | e | 535 (77 600) |
| L485MS or X70MS | 485 (70 300) |
635 (92 100) |
570 (82 700) |
760 (110 200) |
0,93 | e | 570 (82 700) |
Table H.2 ----Requirements for the results of Tensile Tests
| Pipe steel grade | Pipe body of SMLS and welded Pipes | Weld seam of HFW and SAW Pipes | |||||
| Yield strength a Rto,5 Mpa (psi) |
Tensile strength a Rm Mpa (psi) |
Ratio b Rto,5/Rm |
Elongation on 50 mm or 2 in Af % |
Tensile strength c Rm Mpa (psi) |
|||
| minimum | maximum | minimum | maximum | maximum | minimum | minimum | |
| L245NS or BNS L245QS or BQS L245MS or BMS |
24 (35 500) |
40 (65 300) |
415 (60 200) |
760 (110 200) |
0,93 | e | 415 (60 200) |
| L290NS or X42NS L290QS or X42QS L290MS or X42MS |
29 (42 100) |
495 (71 800) |
415 (60 200) |
760 (110 200) |
0,93 | e | 415 (60 200) |
| L320NS or X46NS L320QS or X46QS L320MS or X46MS |
320 (46 400) |
525 (76 100) |
435 (63 100) |
760 (110 200) |
0,93 | e | 435 (63 100) |
| L360NS or X52NS L360QS or X52QS L360MS or X52MS |
360 (52 200) |
530 (76 90) |
460 (66 700) |
760 (110 200) |
0,93 | e | 460 (66 700) |
| L390QS or X56QS L390MS or X56MS |
39 (56 600) |
54 (79 000) |
49 (71 100) |
760 (110 200) |
0,93 | e | 49 (71 100) |
| L415QS or X60QS L415MS or X60MS |
415 (60 200) |
565 (81 90) |
520 (75 400) |
760 (110 200) |
0,93 | e | 520 (75 400) |
| L450QS or X65QS L450MS or X65MS |
40 (65 300) |
600 (87 000) |
535 (77 600) |
760 (110 200) |
0,93 | e | 535 (77 600) |
| L485MS or X70MS | 485 (70 300) |
635 (92 100) |
570 (82 700) |
760 (110 200) |
0,93 | e | 570 (82 700) |
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a for intermediate grades, the difference between the specified maximum yield strength and the specified minimum yield strength shall be as given in the table for the next higher grade, and the difference between the specified minimum tensile strength and the specified minimum yield strength shall be as given in the table for the next higher grade, for intermediate grades, the tensile strength shall be ≤ 760 MPa (110 200 psi). b This limit applies for pipe with D >323, 9 mm (12.750 in). U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch). |
H.4.3 HIC/SWC testThe test for evaluation of resistance-to hydrogen- induced cracking shall meet the following acceptance criteria, with each ratio being the maximum permissible average for three sections per test specimen when tested in solution (Environment) A (see ISO 15156-2:2003, Table B.3):a) crack sensitivity ratio (CSR) ≤ 2 %; b) crack length ratio (CLR) ≤ 15 %; c) crack thickness ratio (CTR) ≤ 5 %; If HIC/SWC tests are conducted in alternative . media (see H.7.3.1.3) to simulate specific service conditions, alternative acceptance criteria may be agreed. |
H.4.4 Hardness testFor test pieces subjected to a hardness test (see H.7.3), the hardness in the pipe body, the weld and HAZ shall be ≤ 250 HV10 or 22 HRC (70,6 HR 15N). The maximum acceptabie hareness of an unexposed weld cap and external surface HAZ and base metal may be 275 HV10 or 26 HRC (73,0 HR 15N) where the equipment user agrees to the alternative weld cap hardness limit, the parent pipe wall thickness is greater than 9 mm, the weld cap is not exposed directly to the sour environment and the escape of hydrogen is not impeded, e.g by canthodic protection. |
The information here is summarized from ASTM Standards and API Specification 5L. Please see the specific standards for more information.
API Specification PSL 1 and PSL 2 Comparison information.
| Grade Range | A25 Through X70 | Gr B Through X80 | Table 1 |
| Size Range | 0.405 Through 80 | 4-2/1 Through 80 | Table 1 |
| Type Of Pipe Ends | Plain-End, Threaded-end, Bevelled-End, Special Coupling Pipe | Plain-En | Table 1 |
| Seam Welding | All Methods Continous Welding Limited to Grade A25 | All Methods Except Continous And Laser Welding | Table 1 |
| Electric Welds: Welder Frequency | No Minimum | 100 Khz Minimum | 5.1.3.3.2 |
| Heat Treatments of Electric Welds | Required For Grades > X42 | Required For All Grades (Gr B Through X80) | 5.1.3.3.1; J.3.3.2:6.2.7 |
| Chemistry: Max C For Seamless Pipe | 0.28% For Grades > Gr B | 0.24% | tables 2a, 2b |
| Chemistry: Max C For Welded Pipe | 0.26% For Grades > Gr B | 0.22% | tables 2a, 2b |
| Chemistry: Max P | 0.03% | 0.03% | Tables 2a, 2b |
| Chemistry: Max S | Only When Purchases Specifies Sr18 | 0.02% | Tables 2a, 2b |
| Carbon Equivalent | None | Maximum Required for Each Grade | 4.2:4.3:6.1.3: Sr15.1 |
| Yield Strength, Maximum | None | Maximum for Each Grade | tables 3a, 3b |
| UTS, Maximum | None Require | Maximum For Each Grade | Tables 3a, 3b |
| Fracture Toughness | Only When Purchaser Specifies Sr4 | Required For All Grades | 6.2.6; 9.3.5: 9.8.4; 9.10.7; |
| Non-destructive Inspection of Seamless Pipes | Permitte | sr4 Mandatory | table 14 9.7.2.6 |
| Repair By Welding of Pipe Body, Plate And Skelp | Permitted By Agreement | Prohibite | 5.3.2;9.7.6: B.1;b.2 |
| Certification | Certificates When Specified Per Sr15 | Prohibite | 4.3;9.7.4.4;9.7.6;b.1.2;b.4 |
| Traceability | Traceable Only Until All Tests are Passed Unless Sr15 Is Specifie | Certificates (Sr15.1) Mandatory Traceable After Completion of Tests (Sr15.2) Mandatory |
12.1 5.6 |
API 5L Specifications Covers Seamless and Welded pipe suitable for use in conveying gas, water, oil, and other liquefied media. The attached requirements cover our offering of API 5L 4th Ed, PSL 1Seamless and Welded; API 5L 4th Ed PSL 2 Seamless & Welded; and API 5L 4th Ed PSL2 Welded only.
Tensile Properties for Seamless and Welded API 5L Sour Service Steel Pipe
tensile properties data for Seamless and Welded API 5L steel pipe API 5L 4th Ed PSL 1, PSL 2.
Testing Req for Seamless and Welded API 5L Sour Service steel Pipe
Our API 5L Steel Seamless Pipe hydrostatic and mechanical testing information for all sizes and grades covered by the specification.
Permissible Variation for Seamless and Welded API 5L Sour Service steel Pipe
| Grade A, B, A25 | X42 through X80 | |
| NPS 2-1/2 and smaller --Seamless and Welded, % | +20 -- 12.5 | +15 -- 12.5 |
| NPS 3 --Seamless and Welded, % | +18 -- 12.5 | +15 -- 12.5 |
| NPS 4 through 18 --Seamless and Welded, % | +15 -- 12.5 | +15 -- 12.5 |
| NPS 20 and larger -- Welded, % | +17.5 -- 10.0 | +19.5 -- 8.0 |
| NPS 20 and larger -- Seamless, % | +15.0 -- 12.5 | +17.5 -- 10.0 |
Paint-stenciled or die-stamped manufacturer’s name or mark, Spec 5L, size, weight per foot, grade, process of manufacture, type of steel, length (NPS 4 and larger only). Test pressure when higher than tabulated (NPS 2 and larger only).
Supplemental Annexes for API 5L Sour ServiceSeamless and Welded steel Pipe
API Specification 5L contains 15 Supplemental Annexes that address special conditions and/or additional requirements.
Sabic Saudi Arabia) |
Shell |
ALBA (Saudi Arabia) |
QAFCO(Qatar) |
Maaden(Saudi Arabia) |
KNPC(Kuwait) |
Kuwait Oil Company(Kuwait) |
Qatar Petroleum(Qatar) |
Petroleum Development Oman(Oman) |
ADNOC(United Arab Emirates) |
Orpic(Oman) |
Takreer(Abu Dhabi) |
YASREF(Abu Dhabi) |
Petrobras(Brazil) |
Petronas(Malaysia) |
NIOC(Iran) |
NPDC(Nigeria) |
Egyptian General petroleum Corporation(Egypt) |
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It is API 5L Grade B (L245) line pipe ordered with sour-service (H₂S) with NACE / HIC / SSC as specified.
No. PSL2 is a product specification level. Sour service needs explicit H₂S chemistry and HIC/SSC testing on the PO.
HIC addresses blistering/stepwise cracking in the pipe body (TM0284). SSC addresses sulfide stress cracking under tension (TM0177). Many sour jobs require both.
Yes — seamless and welded forms when the mill route and annex package are confirmed for the size/wall.
We Export
Savoy Piping Inc. is a well known worldwide exporter of API 5L Grade B Sour Service Pipe is committed to provide each and every customer with the highest standard of customer service. We deal in API 5L Grade B Sour Service Pipe in India and Overseas, offering a wide range of API 5L Grade B Sour Service Pipes