L245/L360/L450螺旋焊管(L245/L360/L450螺旋钢管)
L245螺旋焊管,L360螺旋焊管,L450螺旋焊管生产厂家
产品
标准 |
钢种
|
化学成分
|
力学性能
|
||||||
C
|
Mn
|
P
|
S
|
其他
|
屈服强度Mpa
|
抗拉强度Mpa
|
伸长率 %
|
||
API SPEC 5L
|
A
|
0.21
|
0.6
|
0.030
|
0.030
|
可填铌、钒、钛元素但三种会含量之和不应超过0.15%
|
207
|
331
|
00000
|
B
|
0.22
|
1.2
|
0.025
|
0.015
|
241
|
414
|
|
||
X42
|
0.22
|
0.025
|
0.015
|
1.3
|
290
|
414
|
|
||
X46
|
0.22
|
1.4
|
0.025
|
0.015
|
317
|
434
|
|
||
X52
|
0.22
|
1.4
|
0.025
|
0.015
|
359
|
455
|
|
||
X56
|
0.22
|
1.4
|
0.025
|
0.015
|
386
|
490
|
|
||
X60
|
0.22
|
1.4
|
0.025
|
0.015
|
414
|
517
|
|
||
X65
|
0.22
|
1.45
|
0.025
|
0.015
|
448
|
531
|
|
||
X70
|
0.22
|
1.65
|
0.025
|
0.015
|
483
|
565
|
|
||
GB/T9711-1997
|
L175
|
0.21
|
0.60
|
0.030
|
0.030
|
175
|
315
|
27
|
|
L210
|
0.21
|
0.90
|
0.030
|
0.030
|
210
|
335
|
25
|
||
L245
|
0.26
|
1.15
|
0.030
|
0.030
|
245
|
415
|
21
|
||
L290
|
0.28
|
1.25
|
0.030
|
0.030
|
290
|
415
|
21
|
||
L360
|
0.30
|
1.25
|
0.030
|
0.030
|
360
|
460
|
19
|
||
L390
|
0.26
|
1.35
|
0.030
|
0.030
|
390
|
490
|
18
|
||
L415
|
0.26
|
1.35
|
0.030
|
0.030
|
415
|
520
|
17
|
||
L450
|
0.26
|
1.40
|
0.030
|
0.030
|
450
|
525
|
17
|
||
L485
|
0.23
|
1.60
|
0.030
|
0.030
|
485
|
570
|
16
|
||
SY/T5037-2000
|
Q235B
|
0.12-0.20
|
0.30-0.70
|
0.045
|
0.045
|
|
235
|
375-460
|
26
|
备 注
|
e:伸长率最小值
A:拉伸试样横截面面积mm U: 规定的母材抗拉强度最小值 Mpa |