Sep 15, 2025 Leave a message

API 5L X42 LSAW steel pipe

An API 5L X42 LSAW steel pipe is a carbon steel line pipe manufactured to the American Petroleum Institute (API) Specification 5L standard, utilizing the Longitudinal Submerged Arc Welding (LSAW) process. It is designed for the transportation of oil, gas, and water, with the "X42" designation indicating a minimum yield strength of 42,100 psi (290 MPa). The "PSL1" or "PSL2" Product Specification Level defines the quality and testing requirements for the pipe, with LSAW being a common welded manufacturing method for this grade.

Key Characteristics

Standard: API 5L Specification

Grade: X42 (equivalent to ISO 3183 L290)

Minimum Yield Strength: 42,100 psi (290 MPa)

Manufacturing Method: Longitudinally Submerged Arc Welding (LSAW)

Product Specification Level (PSL): Can be PSL1 or PSL2, with PSL2 offering higher mechanical properties and stricter testing.

Manufacturing Process (LSAW)

Plate Forming: Steel plates are formed into a cylindrical shape.

Welding: The seam is then welded using the Submerged Arc Welding (SAW) process, where an electric arc between the pipe and electrodes is covered by a granular flux. This method is known for producing high-quality, robust welds suitable for demanding applications.

Applications

Oil & Gas Industry: Widely used in pipeline systems for the transportation of oil, natural gas, and other hydrocarbons over long distances.

Water Transportation: Suitable for conveying water in various applications.

Why Choose This Pipe?

Mechanical Strength:

Offers good mechanical properties, with the X42 grade being a step up from API 5L Grade B pipe.

Cost-Effectiveness:

LSAW pipes can be a more economical choice compared to seamless pipes for many applications, especially for larger diameters.

Versatility:

Available in different dimensions to meet specific project needs and can be further enhanced with coatings and finishes for specific environments.

Specification

O.D.

W.T.

Length(m)

Inch

mm

Min.Yield Strength(Mpa)

Inch

mm

245(B)

290(X42)

360(X52)

415(X60)

450(X65)

485(X70)

555(X80)

16

406

6.0-14.0

6.0-13.0

6.0-12.0

6.0-11.0

6.0-10.5

6.0-10.0

6.0-9.0

6.0-12.3

18

457

6.0-15.0

6.0-14.0

6.0-13.0

6.0-12.0

6.0-11.5

6.0-11.0

6.0-10.0

6.0-12.3

20

508

6.0-16.0

6.0-15.0

6.0-14.0

6.0-13.0

6.0-12.5

6.0-12.0

6.0-11.0

6.0-12.3

22

559

6.0-17.0

6.0-16.0

6.0-15.0

6.0-14.0

6.0-13.5

6.0-13.0

6.0-12.0

6.0-12.3

24

610

6.0-18.0

6.0-17.0

6.0-16.0

6.0-15.0

6.0-14.5

6.0-14.0

6.0-13.0

6.0-12.3

26

660

6.0-19.0

6.0-18.0

6.0-17.0

6.0-16.0

6.0-15.0

6.0-15.0

6.0-14.0

6.0-12.3

28

711

6.0-20.0

6.0-19.0

6.0-18.0

6.0-17.0

6.0-16.5

6.0-16.0

6.0-15.0

6.0-12.3

30

762

7.0-21.0

7.0-20.0

7.0-19.0

7.0-18.0

7.0-17.5

7.0-17.0

7.0-16.0

6.0-12.3

32

813

7.0-22.0

7.0-21.0

7.0-20.0

7.0-19.0

7.0-18.5

7.0-18.0

7.0-17.0

6.0-12.3

34

864

7.0-23.0

7.0-22.0

7.0-21.0

7.0-20.0

7.0-19.5

7.0-19.0

7.0-18.0

6.0-12.3

36

914

8.0-24.0

8.0-23.0

8.0-22.0

8.0-21.0

8.0-20.5

8.0-20.0

8.0-19.0

6.0-12.3

38

965

8.0-25.0

8.0-24.0

8.0-23.0

8.0-22.0

8.0-21.5

8.0-21.0

8.0-20.0

6.0-12.3

40

1016

8.0-26.0

8.0-25.0

8.0-24.0

8.0-23.0

8.0-22.5

8.0-22.0

8.0-21.0

6.0-12.3

42

1067

8.0-26.0

8.0-25.0

8.0-24.0

8.0-23.0

8.0-22.5

8.0-22.0

8.0-21.0

6.0-12.3

44

1118

9.0-27.0

9.0-26.0

9.0-24.5

9.0-23.5

9.0-22.8

9.0-22.0

9.0-21.0

6.0-12.3

46

1168

9.0-27.0

9.0-26.0

9.0-24.0

9.0-23.5

9.0-22.8

9.0-22.0

9.0-21.0

6.0-12.3

48

1219

9.0-28.0

9.0-27.0

9.0-25.4

9.0-24.0

9.0-23.5

9.0-23.0

9.0-22.0

6.0-12.3

52

1321

9.0-28.0

9.0-27.0

9.0-25.4

9.0-24.2

9.0-23.5

9.0-23.0

9.0-22.0

6.0-12.3

56

1422

10.0-29.0

10.0-28.0

10.0-26.0

10.0-24.5

10.0-23.8

10.0-23.0

10.0-22.0

6.0-12.3

60

1524

10.0-29.0

10.0-28.0

10.0-26.0

10.0-24.5

10.0-23.8

10.0-23.0

10.0-22.0

6.0-12.3

64

1626

10.0-30.0

10.0-29.0

10.0-27.0

10.0-25.4

10.0-24.8

10.0-24.0

10.0-23.0

6.0-12.3

68

1727

10.0-30.0

10.0-29.0

10.0-27.0

10.0-25.4

10.0-24.8

10.0-24.0

10.0-23.0

6.0-12.3

72

1829

10.0-30.0

10.0-29.0

10.0-27.0

10.0-25.4

10.0-24.8

10.0-24.0

10.0-23.0

6.0-12.3

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