standard

API 5L

Steel grade

A25, A, B, X42, X46, X52, X56, X60, X65, X70

Outside diameter

20mm-200mm

Thickness

0.1mm-20mm

Length

3m-8m

End protection

Plastic caps

Outside coating

Black painting, anti-corrosion oil, galvanized or as per required by customers

Packing

wooden boxes, plastic bags or according to different customers’ requests

Inspection and test

UT, ET, HT, RT, etc. and others according to the standard, or as the requests of the customers

Delivery condition

Annealed, Normalized, Normalized and tempered

Standard

Grade

C

Mn

P

S

API SPEC 5L

PSL1

　A25II

≤0.21

≤0.6

≤0.03

≤0.03

A25III

≤0.21

≤0.6

0.45-0.8

≤0.03

A

≤0.22

≤0.9

≤0.03

≤0.03

B

≤0.28

≤1.2

≤0.03

≤0.03

X42

≤0.28

≤1.3

≤0.03

≤0.03

X46.X52.X56

≤0.28

≤1.4

≤0.03

≤0.03

X60.X65.X70

≤0.28

≤1.4

≤0.03

≤0.03

PSL2

B

≤0.24

≤1.2

≤0.025

≤0.015

X42

≤0.24

≤1.3

≤0.025

≤0.015

X46.X52.X56

≤0.24

≤1.4

≤0.025

≤0.015

X60.X65.X70.X80

≤0.24

≤1.4

≤0.025

≤0.015

Standrad

Grade

Yield strength(MPa)

Tensile strength(MPa)

API SPEC 5L

PSL1

A25

172

310

A

207

331

B

241

414

X42

290

414

X46

317

434

X52

359

455

X56

386

490

X60

414

517

X65

448

531

X70

483

565

PSL2

Min

Max

Min

Max

B

241

448

414

758

X42

290

496

414

758

X46

317

524

434

758

X52

359

531

455

758

X56

386

544

490

758

X60

414

565

517

758

X65

448

600

531

758

X70

483

621

565

758

X80

552

690

621

827