执行标准:API SPEC 5L
用途:用于石油、天然气工业中的气、水、油输送,用于油井中抽取石油或天然气。
尺寸公差:
钢管种类
钢管外径(D)
钢管壁厚(S)
管体
钢管外径 (mm)
允许偏差(mm)
钢管外径(mm)
≥60.3且S<20
±0.75%
≤73.0
+15%,-12.5%
≥60.3且S≥20
±1.00%
>73.0且S<20
>73.0且S≥20
+17.5%,-10
API SPEC 5L 化学成分
标准Standard
产品规定类别PSL
钢级Steel grade
化学成分 Chemical composition, %
C
Mn
P
S
Si
V
Nb
Ti
CEpcm
API 5L
GB/T9711.2
PSL 1
A or L210
≤0.22
≤0.90
≤0.030
-
≤0.25
B or L245
≤0.28
≤1.20
x42 or L290
≤1.30
X46 or L320
≤1.40
X52 or L360
X56 or L390
X60 or L415
PSL 2
BR or L245R
≤0.24
≤0.025
≤0.015
≤0.40
c
≤0.04
X42R or L290R
≤0.06
≤0.05
BN or L245N
X42N or L290N
X46N or L320N
≤0.07
X52N or L360N
≤0.45
≤0.10
X56N or L390N
X60N or L415N
协商
备注:c: 除非另有协议,否则V和Nb之和应≤0.06%。Note: c: The sum of the columbium [niobium], and vanadium contents shall not exceed 0.06% except that, by agreement between the purchaser andthe manufacturer, an alternative maximum may be established.
API SPEC 5L 力学性能
产品规定类别Product Specification Level
屈服强度 Yield Strength (min), Mpa
抗拉强度 Tensile Strength(min), Mpa
210
335
245
415
290
320
435
360
460
390
490
520
245~450
415~760
290~495
320~525
435~760
360~530
460~760
390~545
490~760
415~565
520~760