| Brand Name: | Jinxi Pipe |
| Model Number: | LSAW Steel Pipe |
| MOQ: | 1 |
| Price: | 420 USD/TON |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability: | 1000000 |
API 5L X42 LSAW Steel Pipe For Transmission Pipelines
Specifications
API 5L X42 LSAW (Longitudinally Submerged Arc Welded) steel pipe is a carbon steel line pipe with a minimum yield strength of 42,100 psi (290 MPa). Designed for oil, gas, and water transmission, it is manufactured by forming steel plates into cylinders and welding them longitudinally. It is available in PSL1 and PSL2 quality levels, with PSL2 requiring more stringent testing, including mandatory impact and non-destructive inspections.
| American Standard | Standard Name |
| API 5L | Specification for Line Pipe |
![]()
| Steel Grade | Mass fraction, based on heat and product analyses a,g % |
||||||
| C | Mn | P | S | V | Nb | Ti | |
| max b | max b | max | max | max | max | max | |
| Seamless Pipe | |||||||
| A | 0.22 | 0.9 | 0.03 | 0.03 | – | – | – |
| B | 0.28 | 1.2 | 0.03 | 0.03 | c,d | c,d | d |
| X42 | 0.28 | 1.3 | 0.03 | 0.03 | d | d | d |
| X46 | 0.28 | 1.4 | 0.03 | 0.03 | d | d | d |
| X52 | 0.28 | 1.4 | 0.03 | 0.03 | d | d | d |
| X56 | 0.28 | 1.4 | 0.03 | 0.03 | d | d | d |
| X60 | 0.28 e | 1.40 e | 0.03 | 0.03 | f | f | f |
| X65 | 0.28 e | 1.40 e | 0.03 | 0.03 | f | f | f |
| X70 | 0.28 e | 1.40 e | 0.03 | 0.03 | f | f | f |
| Welded Pipe | |||||||
| A | 0.22 | 0.9 | 0.03 | 0.03 | – | – | – |
| B | 0.26 | 1.2 | 0.03 | 0.03 | c,d | c,d | d |
| X42 | 0.26 | 1.3 | 0.03 | 0.03 | d | d | d |
| X46 | 0.26 | 1.4 | 0.03 | 0.03 | d | d | d |
| X52 | 0.26 | 1.4 | 0.03 | 0.03 | d | d | d |
| X56 | 0.26 | 1.4 | 0.03 | 0.03 | d | d | d |
| X60 | 0.26 e | 1.40 e | 0.03 | 0.03 | f | f | f |
| X65 | 0.26 e | 1.45 e | 0.03 | 0.03 | f | f | f |
| X70 | 0.26e | 1.65 e | 0.03 | 0.03 | f | f | f |
| a. Cu ≤ = 0.50% Ni; ≤ 0.50%; Cr ≤ 0.50%; and Mo ≤ 0.15%, | |||||||
| b. For each reduction of 0.01% below the specified maximum concentration for carbon, an increase of 0.05% above the specified maximum concentration for Mn is permissible, up to a maximum of 1.65% for grades ≥ L245 or B, but ≤ L360 or X52; up to a maximum of 1.75% for grades > L360 or X52, but < L485 or X70; and up to a maximum of 2.00% for grade L485 or X70., | |||||||
| c. Unless otherwise agreed NB + V ≤ 0.06%, | |||||||
| d. Nb + V + TI ≤ 0.15%, | |||||||
| e. Unless otherwise agreed., | |||||||
| f. Unless otherwise agreed, NB + V = Ti ≤ 0.15%, | |||||||
| g. No deliberate addition of B is permitted and the residual B ≤ 0.001% | |||||||
Sources American Standard API SPECIFICATION 5L Table 5 — Chemical composition for PSL 2 pipe with t ≤ 25,0 mm (0.984 in)
| Steel Grade | Mass fraction, based on heat and product analyses % maximum |
Carbon equlvalent a% maximum | |||||||||
| C b |
Si | Mn b |
P | S | V | Nb | Ti | Other | CE IIW |
CE Pcm |
|
| Seamless and Welded Pipe | |||||||||||
| BR | 0.24 | 0.4 | 1.2 | 0.025 | 0.015 | c | c | 0.04 | e,l | 0.43 | 0.25 |
| X42R | 0.24 | 0.4 | 1.2 | 0.025 | 0.015 | 0.06 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| BN | 0.24 | 0.4 | 1.2 | 0.025 | 0.015 | c | c | 0.04 | e,l | 0.43 | 0.25 |
| X42N | 0.24 | 0.4 | 1.2 | 0.025 | 0.015 | 0.06 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| X46N | 0.24 | 0.4 | 1.4 | 0.025 | 0.015 | 0.07 | 0.05 | 0.04 | d,e,l | 0.43 | 0.25 |
| X52N | 0.24 | 0.45 | 1.4 | 0.025 | 0.015 | 0.1 | 0.05 | 0.04 | d,e,l | 0.43 | 0.25 |
| X56N | 0.24 | 0.45 | 1.4 | 0.025 | 0.015 | 0.10f | 0.05 | 0.04 | d,e,l | 0.43 | 0.25 |
| X60N | 0.24f | 0.45f | 1.40f | 0.025 | 0.015 | 0.10f | 0.05f | 0.04f | g,h,l | As agreed | |
| BQ | 0.18 | 0.45 | 1.4 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| X42Q | 0.18 | 0.45 | 1.4 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| X46Q | 0.18 | 0.45 | 1.4 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| X52Q | 0.18 | 0.45 | 1.5 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| X56Q | 0.18 | 0.45 | 1.5 | 0.025 | 0.015 | 0.07 | 0.05 | 0.04 | d,e,l | 0.43 | 0.25 |
| X60Q | 0.18f | 0.45f | 1.70f | 0.025 | 0.015 | g | g | g | h,l | 0.43 | 0.25 |
| X65Q | 0.18f | 0.45f | 1.70f | 0.025 | 0.015 | g | g | g | h,l | 0.43 | 0.25 |
| X70Q | 0.18f | 0.45f | 1.80f | 0.025 | 0.015 | g | g | g | h,l | 0.43 | 0.25 |
| X80Q | 0.18f | 0.45f | 1.90f | 0.025 | 0.015 | g | g | g | i,j | As agreed | |
| X90Q | 0.16f | 0.45f | 1.9 | 0.02 | 0.01 | g | g | g | j,k | As agreed | |
| X100Q | 0.16f | 0.45f | 1.9 | 0.02 | 0.01 | g | g | g | j,k | As agreed | |
| Welded Pipe | |||||||||||
| BM | 0.22 | 0.45 | 1.2 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| X42M | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| X46M | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | e,l | 0.43 | 0.25 |
| X52M | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | d | d | d | e,l | 0.43 | 0.25 |
| X56M | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | d | d | d | e,l | 0.43 | 0.25 |
| X60M | 0.12f | 0.45f | 1.60f | 0.025 | 0.015 | g | g | g | h,l | 0.43 | 0.25 |
| X65M | 0.12f | 0.45f | 1.60f | 0.025 | 0.015 | g | g | g | h,l | 0.43 | 0.25 |
| X70M | 0.12f | 0.45f | 1.70f | 0.025 | 0.015 | g | g | g | h,l | 0.43 | 0.25 |
| X80M | 0.12f | 0.45f | 1.85f | 0.025 | 0.015 | g | g | g | i,j | 0.43f | 0.25 |
| X90M | 0.1 | 0.55f | 2.10f | 0.02 | 0.01 | g | g | g | i,j | – | 0.25 |
| X100M | 0.1 | 0.55f | 2.10f | 0.02 | 0.01 | g | g | g | i,j | – | 0.25 |
| X120M | 0.1 | 0.55f | 2.10f | 0.02 | 0.01 | g | g | g | i,j | – | 0.25 |
| a. SMLS t>0.787”, CE limits shall be as agreed. The CEIIW limits applied fi C > 0.12% and the CEPcm limits apply if C ≤ 0.12%, | |||||||||||
| b. For each reduction of 0.01% below the specified maximum for C, an increase of 0.05% above the specified maximum for Mn is permissible, up to a maximum of 1.65% for grades ≥ L245 or B, but ≤ L360 or X52; up to a maximum of 1.75% for grades > L360 or X52, but < L485 or X70; up to a maximum of 2.00% for grades ≥ L485 or X70, but ≤ L555 or X80; and up to a maximum of 2.20% for grades > L555 or X80. | |||||||||||
| c. Unless otherwise agreed Nb = V ≤ 0.06%, | |||||||||||
| d. Nb = V = Ti ≤ 0.15%, | |||||||||||
| e. Unless otherwise agreed, Cu ≤ 0.50%; Ni ≤ 0.30% Cr ≤ 0.30% and Mo ≤ 0.15%, | |||||||||||
| f. Unless otherwise agreed. | |||||||||||
| g. Unless otherwise agreed, Nb + V + Ti ≤ 0.15%. | |||||||||||
| h. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 0.50% Cr ≤ 0.50% and MO ≤ 0.50%. | |||||||||||
| i. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.50% and MO ≤ 0.50%. | |||||||||||
| j. B ≤ 0.004%. | |||||||||||
| k. Unless otherwise agreed, Cu ≤ 0.50% Ni ≤ 1.00% Cr ≤ 0.55% and MO ≤ 0.80%. | |||||||||||
| l. For all PSL 2 pipe grades except those grades with footnotes j noted, the following applies. Unless otherwise agreed no intentional addition of B is permitted and residual B ≤ 0.001%. | |||||||||||
| Pipe Grade | Pipe Body of SMLS and Welded Pipes | Weld seam of EW,LW,SAW and COW pipes | ||
| Yield Strength a | Tensile Strength a | Elongation | Tensile Strength b | |
| Rt0,5 PSI Min | Rm PSI Min | (in 2in Af % min) | Rm PSI Min | |
| A | 210 (30 500) | 335 (48 600) | c | 335 (48 600) |
| B | 245(35 500) | 415 (60 200) | c | 415 (60 200) |
| X42 | 290 (42 100) | 415 (60 200) | c | 415 (60 200) |
| X46 | 320 (46 400) | 435 (63 100) | c | 435 (63 100) |
| X52 | 360 (52 200) | 460 (66 700) | c | 460 (66 700) |
| X56 | 390 (56 600) | 490 (71 100) | c | 490 (71 100) |
| X60 | 415 (60 200) | 520 (75 400) | c | 520 (75 400) |
| X65 | 450 (65 300) | 535(77 600) | c | 535 (77 600) |
| X70 | 485 (70 300) | 570 (82 700) | c | 570 (82 700) |
| a. For intermediate grade, the difference between the specified minimum tensile strength and the specified minimum yield for the pipe body shall be as given for the next higher grade. | ||||
| b. For the intermediate grades, the specified minimum tensile strength for the weld seam shall be the same as determined for the body using footnote a. | ||||
| c. The specified minimum elongation, Af, expressed in percent and rounded to the nearest percent, shall be determined using the following equation: | ||||
| *Please refer to the original standard for the formula in the image. | ||||
| Where C is 1 940 for calculation using Si units and 625 000 for calculation using USC units | ||||
| Axc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches) , as follows | ||||
| – For circular cross-section test pieces, 130mm2 (0.20 in2) for 12.7 mm (0.500 in) and 8.9 mm (.350 in) diameter test pieces; and 65 mm2 (0.10 in2) for 6.4 mm (0.250in) 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 (0.10in2) | ||||
| – 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 (0.10in2) | ||||
| U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch) | ||||
Sources American Standard API SPECIFICATION 5L Table 7 — Requirements for the results of tensile tests for PSL 2 pipe
| Pipe Grade | Pipe Body of SMLS and Welded Pipes | Weld seam Of HFW,SAW and COW pipes | |||||
| Yield Strength a | Tensile Strength a | Ratio a,c | Elongation | Tensile Strength d | |||
| Rt0,5 MPa (psi) | Rm MPa (psi) | Rt0,5/Rm | (on 50 mm or 2 in) |
Rm MPa (psi) | |||
| Minimum | Maximum | Minimum | Maximum | Maximum | Minimum | Minimum | |
| BR, BN,BQ,BM | 245 (35 500) |
450e (65 300)e |
415 (60 200) |
655 (95 000) |
0.93 | f | 415 (60 200) |
| X42,X42R,X2Q,X42M | 290 (42 100) |
495 (71 800) |
415 (60 200) |
655 (95 000) |
0.93 | f | 415 (60 200) |
| X46N,X46Q,X46M | 320 (46 400) |
525 (76 100) |
435 (63 100) |
655 (95 000) |
0.93 | f | 435 (63 100) |
| X52N,X52Q,X52M | 360 (52 200) |
530 (76 900) |
460 (66 700) |
760 (110 200) |
0.93 | f | 460 (66 700) |
| X56N,X56Q,X56M | 390 (56 600) |
545 (79 000) |
490 (71 100) |
760 (110 200) |
0.93 | f | 490 (71 100) |
| X60N,X60Q,S60M | 415 (60 200) |
565 (81 900) |
520 (75 400) |
760 (110 200) |
0.93 | f | 520 (75 400) |
| X65Q,X65M | 450 (65 300) |
600 (87000) |
535 (77 600) |
760 (110 200) |
0.93 | f | 535 (77 600) |
| X70Q,X65M | 485 (70 300) |
635 (92 100) |
570 (82 700) |
760 (110 200) |
0.93 | f | 570 (82 700) |
| X80Q,X80M | 555 (80 500) |
705 (102 300) |
625 (90 600) |
825 (119 700) |
0.93 | f | 625 (90 600) |
| a. For intermediate grade, refer to the full API5L specification. | |||||||
| b. for grades > X90 refer to the full API5L specification. | |||||||
| c. This limit applies for pies with D> 12.750 in | |||||||
| d. 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 foot a. | |||||||
| e. for pipe requiring longitudinal testing, the maximum yield strength shall be ≤ 71,800 psi | |||||||
| f. The specified minimum elongation, Af, expressed in percent and rounded to the nearest percent, shall be determined using the following equation: | |||||||
| refer to the full API5L specification. | |||||||
| Where C is 1 940 for calculation using Si units and 625 000 for calculation using USC units | |||||||
| Axc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches) , as follows | |||||||
| – For circular cross-section test pieces, 130mm2 (0.20 in2) for 12.7 mm (0.500 in) and 8.9 mm (.350 in) diameter test pieces; and 65 mm2 (0.10 in2) for 6.4 mm (0.250in) 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 (0.10in2) | |||||||
| – 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 (0.10in2) | |||||||
| U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch). | |||||||
| g. Lower values fo R10,5IRm may be specified by agreement. | |||||||
| h. for grades > x90 refer to the full API5L specification. | |||||||
API 5L X42 LSAW Steel Pipe Manufacturing Process
Ultrasonic plate probing → edge milling → pre-bending → forming → Pre-welding → Internal welding→ External welding → Ultrasonic inspection→ X-ray inspection → Expanding → hydraulic test →l. Chamfering → Ultrasonic inspection→ X-ray inspection→ magnetic particle inspection at tube end.
![]()
API 5L X42 LSAW Steel Pipe Application
API 5L X42 LSAW Steel Pipe Packing & Loading
![]()
API 5L GR.42 LSAW Pipe is transported by bulk carrier
![]()