用途:
把抽出地面的油、气或水,通过管线管输送到石油和天然气工业企业。
主要钢级:
L245、L290、L360、L415、L480、GR.B、X42、X46、X56、X65、X70、X80、X100等钢级。
标准:
API SPEC 5L、ISO3183、GB/T9711
API 5L规格(OD×WT):
1.13〞~48.00〞×0.133〞~1.25〞
机械性能
标准
|
牌号
|
抗拉强度(MPa)
|
屈服强度(MPa)
|
屈服比
|
伸长率(%)
|
0℃冲击功 Akv(J)
|
热处理状态
|
API SPEC 5L GB/T9711
|
L245/B
|
≥415
|
245~440
|
≤0.80
|
22
|
≥40
|
正火
|
API SPEC 5L GB/T9711
|
L290/X42
|
≥415
|
290~440
|
≤0.80
|
21
|
≥40
|
正火
|
API SPEC 5L GB/T9711
|
L360/X52
|
≥460
|
360~510
|
≤0.85
|
20
|
≥40
|
正火
|
API SPEC 5L GB/T9711
|
L415/X60
|
≥520
|
415~565
|
≤0.85
|
18
|
≥40
|
正火
|
API SPEC 5L GB/T9711
|
L450/X65
|
≥535
|
450~570
|
≤0.90
|
18
|
≥40
|
淬火+回火
|
API SPEC 5L GB/T9711
|
L485/X70
|
≥570
|
485~605
|
≤0.90
|
18
|
≥40
|
淬火+回火
|
化学成分分析
Product 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
|
|