钢管的力学性能和熔炼分析化学成分
|
标 准
|
钢 种
|
力 学 性 质
|
化 学 成 分
|
|||||||
|
屈服强度
Mpa (min) |
抗拉强度Mpa
(min) |
伸长率%
(min) |
C
(max) |
Si
(max) |
Mn
|
P
(max) |
S
(max) |
Nb
(max) |
||
|
API 5L
|
A
|
210
|
331
|
e=1942.57
A0.2 ×бb0.9
A- 拉伸试样横截面积бb－规定的抗拉强度最小值 |
0.21
|
|
0.90
|
0.030
|
0.030
|
|
|
B
|
245
|
413
|
0.26
|
1.15
|
0.030
|
0.030
|
||||
|
X42
|
290
|
413
|
0.28
|
1.25
|
0.030
|
0.030
|
||||
|
X46
|
320
|
434
|
0.30
|
1.35
|
0.030
|
0.030
|
||||
|
X52
|
360
|
455
|
0.30
|
1.35
|
0.030
|
0.030
|
||||
|
X56
|
390
|
489
|
0.28
|
1.35
|
0.030
|
0.030
|
||||
|
X60
|
415
|
517
|
0.28
|
1.35
|
0.030
|
0.030
|
||||
|
X65
|
450
|
530
|
0.26
|
1.40
|
0.030
|
0.030
|
||||
|
X70
|
485
|
565
|
0.23
|
1.60
|
0.030
|
0.030
|
||||
|
GB700-88
|
Q235A
|
235
|
375
|
26
|
0.22
|
0.30
|
0.65
|
0.045
|
0.045
|
|
|
Q235B
|
235
|
375
|
26
|
0.20
|
0.30
|
0.70
|
0.045
|
0.045
|
||
|
Q235C
|
235
|
375
|
26
|
0.18
|
0.30
|
0.80
|
0.040
|
0.040
|
||
|
Q235D
|
235
|
375
|
26
|
0.17
|
0.30
|
0.80
|
0.035
|
0.035
|
||
|
GB/T911.1
-1997 |
L210
|
210
|
335
|
25
|
0.21
|
|
0.90
|
0.030
|
0.030
|
|
|
L245
|
245
|
415
|
21
|
0.26
|
1.15
|
0.030
|
0.030
|
|||
|
L290
|
290
|
415
|
21
|
0.28
|
1.25
|
0.030
|
0.030
|
|||
|
L320
|
320
|
435
|
20
|
0.30
|
1.25
|
0.030
|
0.030
|
|||
|
L360
|
360
|
460
|
19
|
0.30
|
1.25
|
0.030
|
0.030
|
|||
|
L390
|
390
|
490
|
18
|
0.26
|
1.35
|
0.030
|
0.030
|
|||
|
L415
|
415
|
520
|
17
|
0.26
|
1.35
|
0.030
|
0.030
|
|||
|
L450
|
450
|
535
|
17
|
0.26
|
1.40
|
0.030
|
0.030
|
|||
|
L485
|
485
|
570
|
16
|
0.23
|
1.60
|
0.030
|
0.030
|
|||
|
L555
|
555
|
625
|
15
|
0.18
|
1.80
|
0.030
|
0.030
|
|||
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