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API 5L Grade B, X42, X46, X52, X56, X60, X65, X70 PSL2 SOUR SERVICE Seamless Pipes

Hot Rolled Carbon Steel Pipes as per American Petroleum Institute specification API 5L cover Seamless and Welded Line Pipes .

API 5L Sour Service Seamless Line Pipe

Grade B · X42–X70 — NACE / HIC / SSC tested for H₂S service


API 5L sour service seamless line pipe NACE HIC SSC

Savoy Piping Inc. supplies API 5L sour-service seamless line pipe when pipeline fluids contain wet H₂S and the purchase order requires sour-service chemistry and testing.

Related: HIC Tested, SSC Tested, API 5L Seamless Hub.

What “sour service” means on an enquiry

Call out the governing annex / NACE requirements, HIC (TM0284), SSC (TM0177) and any hardness limits. Do not assume standard sweet-service PSL2 covers sour testing.

Also see: API 5L seamless line pipe hub · Carbon seamless hub · CS buttweld.

Grades

Grade B, X42, X46, X52, X56, X60, X65, X70 — PSL level and delivery condition as specified on the PO.

Our API 5L Sour Service Seamless Line Pipe range

API 5L Sour Service Pipe Specification API 5L / ISO 3183 Hot Rolled.
API 5L Sour Service Pipe Grades API 5L Grade B PSL1, PSL 2 / API 5L X42 PSL1, PSL 2 / API 5L X46 PSL1, PSL 2 / API 5L X52 PSL1, PSL 2 / API 5L X56 PSL1, PSL 2 / API 5L X60 PSL1, PSL 2 / API 5L X65 PSL1, PSL 2 / X70 PSL1, PSL 2 / API 5L X70 PSL2 / API 5CT / API 5L X80 PSL1, PSL 2 / ISO 3183 L245 PSL1, PSL 2, ISO 3183 L290 PSL1, PSL 2, ISO 3183 L320 PSL1, PSL2, ISO 3183 L360 PSL1, PSL 2, ISO 3183 L390 PSL1, PSL 2, ISO 3183 L415 PSL1, PSL 2, ISO 3183 L450 PSL1, PSL 2, ISO 3183 L485 PSL1, PSL 2
API 5L Sour Service Pipe Type Seamless
API 5L Sour Service Pipe Outer Diameter Size 3/8" NB to 30" NB (Nominal Bore Size)
API 5L Sour Service Pipe Wall Thickness Schedule 20 to Schedule XXS (Heavier On Request) Up to 250 mm Thickness
API 5L Sour Service Pipe Length 5 to 7 Meters, 09 to 13 Meters, Single Random Length, Double Random Length And Customize Size.
API 5L Sour Service Pipe Ends Plain Ends / Beveled Ends / Coupling
API 5L 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 Sour Service Pipe Coating Epoxy Coating / Colour Paint Coating / 3LPE Coating.
API 5L Sour Service Pipe Other Testing NACE MR0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, SWC, H2 SERVICE, IBR, Etc.
API 5L Sour Service Pipe Dimension All Pipes Tube Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API.
API 5L Sour Service Pipe Value Added Services Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Galavanizing / Heat Treatment
API 5L Sour Service Pipe Packaging Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
API 5L 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 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

Annex H
(normative)

PSL 2 Pipe Ordered for SOUR Service

H.1 Introduction

This annex specifies additional provisions that apply for PSL 2 pipe that is ordered for sour service [see 7.2 c) 51 ] .

NOTE:
The consequences of sudden failures of metallic components used for the oil and gas production associated with their exposure to H2S- containing production fluids led to the development of NACE MR0175/ISO 15156-1[21] and subsequently EFC publicantion 16[13] ISO 15156-2 used those sources to provide requirements and recommendations for materials qualificantion and selection for Application in environments containing wet H2S in oil and gas production systems. Carbon and low alloy steels selected using ISO 15156—2 are resistant to cracking in defined H2S containing environments in oil and gas production but are not necessarily immune to cracking under all service conditions. Different service conditions might necessitate the alternative testing that is dealt with in ISO 15156—2:2003, Annex B. That annex specifies requirements for qualifying carbon and low alloy steels for H2S service by laboratory testing.

It is the purchaser’s responsibility to select the carbon and low-alloy steels suitable for the intended service.

H.2 Additional information to be supplied by the purchaser

in addition to items a) to g) as specified by 7.1, the purchase order shall indicante which of the following provisions apply for the specific order item:

a) steel casting method for strip or plate used for the manufacture of welded pipe (see H.3.3.2.1);

b) ultrasonic inspection of strip or plate for laminar imperfections (see H.3.3.2.4);

c) supply of helical-seam pipe containing strip/plate end welds (see H.3.3.2.5);

d) chemical composition for intermediate grades (see H.4.1.1);

e) chemical composition for pipe with t > 25,0 mm (0.984 in) (see H.4.1.2);

f) chemical composition limits (see Table H.1, footnotes c), d,) e), f), i), j)and k);

g) frequency of hardness testing of the longitudinal seam weld of HFW or SAW pipe (see Table H.3);

h) SSC test for manufacturing procedure qualificantion (see Table H.3);

i) alternative HIC/SWC test methods and associated acceptance criteria (see H.7.3.1.3);

j) photomicrographs of reportable HIC cracks (see H.7.3.1.4);

k) alternative SSC test methods and associated acceptance criteria for manufacturing procedure qualificantion (see H.7.3.2.2);

l) for pipe with t ≥ 5,0 mm (0.197 in), ultrasonic inspection for laminar imperfections with in extended length of 100 mm (4.0 in) at the pipe ends (see K.2.1.3);

m) magnetic particle inspection for laminar imperfections at each pipe end face/bevel (see K.2.1.4);

Chemical requirement for Sour Service Pipes

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
C b Si Mn b P S V Nb Ti Other c, d 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 Steel 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 %.

Mechanical requirement for Sour Service Pipes

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 d
(65 300) d		 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)

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).
c for intermediate grades, the specified minimum tensile strength for the weld seam shall be the same value as was determined for the pipe body using footnote a).
d for pipe with D< 219,1 mm (8.625 in), the maximum yield strength shall be ≤495 MPa (71 800 psi).
e The specified minimum elongation, Af, on 50mm or 2 in, expressed in percent and rounded to the nearest percent, shall be as determined using the following equation:
api5l pipe elongation values

Where C is 1940 for calculations using SI units and 625 000 for calculations using USC units;
A xc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches), as follows:
---- for circular cross-section test pieces, 130 mm2 (0.20 in2) for 12,5 mm (0.500 in) and 8,9 mm (0.350 in) diameter test pieces; and 65 mm2 ( 0.10 in2) for 6,4 mm (0.250 in) diameter test pieces;
---- for full-section test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified outside diameter and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.01 in2)
---- for strip test pieces, the lesser of a) 485 mm2( 0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified width of the test piece and the specified wall thickness of the pipe, rounded to the nearest_10 mm2 (0.01 in2);
U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch).

H.4.3 HIC/SWC test

The 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 test

For 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.

API 5L Sour Service Line Pipe Comparative Specifications

The information here is summarized from ASTM Standards and API Specification 5L. Please see the specific standards for more information.

API Specification 5L Sour Service Pipes 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-End 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 Required 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 Permitted sr4 Mandatory table 14 9.7.2.6
Repair By Welding of Pipe Body, Plate And Skelp Permitted By Agreement Prohibited 5.3.2;9.7.6: B.1;b.2
Certification certificates When Specified Per Sr15 Prohibited 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 Specified certificates (Sr15.1) Mandatory
Traceable After Completion of Tests (Sr15.2) Mandatory		 12.1
5.6

Chemical Requirements for API 5L Sour Service steel and Stainless Steel Pipe

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 Requirements for Seamless and Welded API 5L Sour Service steel Pipe
Our API 5L Seamless Pipes hydrostatic and mechanical testing information for all sizes and grades covered by the specification.

Permissible Variations for Seamless and Welded API 5L Sour Service steel Pipe and Steel Seamless 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

Marking Requirements

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.

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Frequently asked questions — API 5L Sour Service Seamless

What is API 5L sour-service pipe?

Sour-service API 5L pipe is ordered with chemistry and testing (often NACE / HIC / SSC) for wet H₂S environments — beyond standard sweet-service line pipe.

Is PSL2 the same as sour service?

No. PSL2 adds toughness and documentation for general pipeline quality. Sour service needs explicit H₂S-related testing and chemistry controls on the PO.

Which grades can be sour-service?

Commercial enquiries typically cover Grade B through X70. Availability depends on mill route, wall and the exact annex package.

What should I put on the enquiry?

Grade, PSL, OD/wall, NACE reference, HIC/SSC requirements, hardness limits and MTC level (3.1/3.2).

Supplying API 5L Sour Service Pipes to Countries

We Export API 5L Sour Service Seamless Pipe to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Myanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rico, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherlands, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc

Savoy Piping Inc. is a well known worldwide exporter of API 5L Sour Service Seamless Pipe is committed to provide each and every customer with the highest standard of customer service. We deal in API 5L Sour Service Seamless Pipe in India and Overseas, offering a wide range of API 5L Sour Service Seamless Line Pipes