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API SPEC 5L管線管機械性能化學成分
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% |
化學成分
|
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 | ||
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 | ||
| ||