|
尺寸公差
|
|
標準
|
外徑公差
|
壁厚公差
|
|
A25.A.B
|
X42-X70
|
|
D<60.3
|
+0.41/-0.40mm
|
D<73
|
+20/-12.5%
|
D≥73
|
+15/-12.5%
|
|
API SPEC 5L
|
D≥60.3
|
+0.75/-0.40mm
|
D≥73
|
+15/-12.5%
|
D>73
|
+15/-12.5%
|
|
|
機械性能
|
|
標準
|
綱級
|
屈服強度(MPa)
|
抗拉強度(MPa)
|
延伸率
|
|
API SPEC 5L
|
PSL1
|
|
|
A25
|
172
|
310
|
|
A
|
207
|
331
|
|
B
|
241
|
414
|
|
X42
|
290
|
414
|
|
X46
|
317
|
434
|
|
X52
|
359
|
455
|
|
X56
|
386
|
490
|
|
X60
|
414
|
517
|
|
X65
|
448
|
531
|
|
X70
|
483
|
565
|
|
PSL2
|
|
|
Min
|
Max
|
Min
|
Max
|
|
B
|
241
|
448
|
414
|
758
|
|
X42
|
290
|
496
|
414
|
758
|
|
X46
|
317
|
524
|
434
|
758
|
|
X52
|
359
|
531
|
455
|
758
|
|
X56
|
386
|
544
|
490
|
758
|
|
X60
|
414
|
565
|
517
|
758
|
|
X65
|
448
|
600
|
531
|
758
|
|
X70
|
483
|
621
|
565
|
758
|
|
X80
|
552
|
690
|
621
|
827
|
|
|
化學成份
|
|
標準
|
鋼級
|
C
|
Mn
|
P
|
S
|
|
Max
|
Max
|
Min
|
Max
|
Max
|
|
API SPEC 5L
|
PSL1
|
|
A25II
|
0.21
|
0.60
|
0.030
|
0.030
|
|
A25III
|
0.21
|
0.60
|
0.45
|
0.80
|
0.030
|
|
A
|
0.22
|
0.90
|
|
0.030
|
0.030
|
|
B
|
0.28
|
1.20
|
|
0.030
|
0.030
|
|
X42
|
0.28
|
1.30
|
|
0.030
|
0.030
|
|
X46.X52.X56
|
0.28
|
1.40
|
|
0.030
|
0.030
|
|
X60.X65.X70
|
0.28
|
1.40
|
|
0.030
|
0.030
|
|
PSL2
|
|
B
|
0.24
|
1.20
|
|
0.025
|
0.015
|
|
X42
|
0.24
|
1.30
|
|
0.025
|
0.015
|
|
X46.X52.X56
|
0.24
|
1.40
|
|
0.025
|
0.015
|
|
X60.X65.X70.X80
|
0.24
|
1.40
|
|
0.025
|
0.015
|
|
