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    Carbon steel line pipes, the standard of API5L Chemical Composition.

Standard
Product Specification Level

Steel grade
Chemical composition, %
C Mn P S Si V Nb Ti CEpcm
API 5L PSL 1 L210 or A
0.22

0.90

0.030

0.030
- - - -
0.25
L245 or B
0.28

1.20

0.030

0.030
- - - -
0.25
L290 or x42
0.28

1.30

0.030

0.030
- - - -
0.25
L320 or X46
0.28

1.40

0.030

0.030
- - - -
0.25
L360 or X52
0.28

1.40

0.030

0.030
- - - -
0.25
L390 or X56
0.28

1.40

0.030

0.030
- - - -
0.25
L415 or X60
0.28

1.40

0.030

0.030
- - - -
0.25
PSL 2 L245Ror BR
0.24

1.20

0.025

0.015

0.40
c c
0.04

0.25
L290R or X42R
0.24

1.20

0.025

0.015

0.40

0.06

0.05

0.04

0.25
L245N or BN
0.24

1.20

0.025

0.015

0.40
c c
0.04

0.25
L290N or X42N
0.24

1.20

0.025

0.015

0.40

0.06

0.05

0.04

0.25
L320N or X46N
0.24

1.40

0.025

0.015

0.40

0.07

0.05

0.04

0.25
L360N or X52N
0.24

1.40

0.025

0.015

0.45

0.10

0.05

0.04

0.25
L390N or X56N
0.24

1.40

0.025

0.015

0.45

0.10

0.05

0.04

0.25
L415N or X60N
0.24

1.40

0.025

0.015

0.45

0.10

0.05

0.04
Negotiation