L390大口径管线管厂家，355*15管线无缝钢管多少钱，X65管线管近期市场行情
管线管化学元素表：
|
roduct Level
|
Steel grade
|
Chemical composition, %
|
|
C
|
Mn
|
P
|
S
|
Si
|
V
|
Nb
|
Ti
|
CEpcm
|
|
PSL 1
|
B or L245
|
≤0.28
|
≤1.20
|
≤0.030
|
≤0.030
|
-
|
-
|
-
|
-
|
-
|
|
x42 or L290
|
≤0.28
|
≤1.30
|
≤0.030
|
≤0.030
|
-
|
-
|
-
|
-
|
-
|
|
X46 or L320
|
≤0.28
|
≤1.40
|
≤0.030
|
≤0.030
|
-
|
-
|
-
|
-
|
-
|
|
X52 or L360
|
≤0.28
|
≤1.40
|
≤0.030
|
≤0.030
|
-
|
-
|
-
|
-
|
-
|
|
X56 or L390
|
≤0.28
|
≤1.40
|
≤0.030
|
≤0.030
|
-
|
-
|
-
|
-
|
-
|
|
X60 or L415
|
≤0.28
|
≤1.40
|
≤0.030
|
≤0.030
|
-
|
-
|
-
|
-
|
-
|
|
X70
|
≤0.28
|
≤1.40
|
≤0.030
|
≤0.030
|
-
|
-
|
-
|
-
|
-
|
|
PSL 2
|
BR or L245R
|
≤0.24
|
≤1.20
|
≤0.025
|
≤0.015
|
≤0.40
|
c
|
c
|
≤0.04
|
≤0.25
|
|
X42R or L290R
|
≤0.24
|
≤1.20
|
≤0.025
|
≤0.015
|
≤0.40
|
≤0.06
|
≤0.05
|
≤0.04
|
≤0.25
|
|
BN or L245N
|
≤0.24
|
≤1.20
|
≤0.025
|
≤0.015
|
≤0.40
|
c
|
c
|
≤0.04
|
≤0.25
|
|
X42N or L290N
|
≤0.24
|
≤1.30
|
≤0.025
|
≤0.015
|
≤0.40
|
≤0.06
|
≤0.05
|
≤0.04
|
≤0.25
|
|
X46N or L320N
|
≤0.24
|
≤1.40
|
≤0.025
|
≤0.015
|
≤0.40
|
≤0.07
|
≤0.05
|
≤0.04
|
≤0.25
|
|
X52N or L360N
|
≤0.24
|
≤1.40
|
≤0.025
|
≤0.015
|
≤0.45
|
≤0.10
|
≤0.05
|
≤0.04
|
≤0.25
|
|
X56N or L390N
|
≤0.24
|
≤1.40
|
≤0.025
|
≤0.015
|
≤0.45
|
≤0.10
|
≤0.05
|
≤0.04
|
≤0.25
|
|
X60N or L415N
|
≤0.24
|
≤1.40
|
≤0.025
|
≤0.015
|
≤0.45
|
≤0.10
|
≤0.05
|
≤0.04
|
-
|
|
X65N or L450N
|
≤0.24
|
≤1.40
|
≤0.025
|
≤0.015
|
≤0.45
|
≤0.10
|
≤0.05
|
≤0.04
|
-
|
|
X70N
|
≤0.24
|
≤1.40
|
≤0.025
|
≤0.015
|
≤0.45
|
≤0.10
|
≤0.05
|
≤0.04
|
-
|
|
X80
|
≤0.24
|
≤1.40
|
≤0.025
|
≤0.015
|
≤0.45
|
≤0.10
|
≤0.05
|
≤0.04
|
-
|
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