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標準：
API SPEC 5L、ISO 3183, GB/T 9711
用途：
用于石油、天然氣工業中的氣、水、油輸送
機械性能：
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標 準
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鋼 級
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屈服強度(MPa)
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抗拉強度(MPa)
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延伸率(%)
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沖擊功(J)
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API SPEC 5L
ISO 3183
GB/T 9711
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PSL1
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查API SPEC 5L表3
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A25/L175
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≥172
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≥310
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A/L210
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≥207
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≥331
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B/L245
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≥241
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≥414
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X42/L290
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≥290
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≥414
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X46/L320
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≥317
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≥434
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X52/L360
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≥359
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≥455
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X56/L390
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≥386
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≥490
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X60/L415
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≥414
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≥517
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X65/L450
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≥448
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≥531
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X70/L485
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≥483
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≥565
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PSL2
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|
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Min
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Max
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Min
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Max
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Min
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B/L245
|
241
|
448
|
441
|
758
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41(27)
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X42/L290
|
290
|
496
|
414
|
758
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41(27)
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X46/L320
|
317
|
524
|
434
|
758
|
41(27)
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|
X52/L360
|
359
|
531
|
455
|
758
|
41(27)
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|
X56/L390
|
386
|
544
|
490
|
758
|
41(27)
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|
X60/L415
|
414
|
565
|
517
|
758
|
41(27)
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X65/L450
|
448
|
600
|
531
|
758
|
41(27)
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X70/L485
|
483
|
621
|
565
|
758
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41(27)
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X80/L555
|
552
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690
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621
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827
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101(68)
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化學成分：
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標 準
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鋼 級
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C
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Mn
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P
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S
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Max
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Max
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Min
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Max
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Max
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API SPEC 5L
ISO 3183
GB/T 9711
|
PSL1
|
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A25/L175
|
0.21
|
0.60
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|
0.030
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0.030
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A25P/L175P
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0.21
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0.60
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0.45
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0.080
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0.030
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A/L210
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0.22
|
0.90
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|
0.030
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0.030
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B/L245
|
0.28
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1.20
|
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0.030
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0.030
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X42/L290
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0.28
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1.30
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|
0.030
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0.030
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X46/L320、X52/L360、X56/390
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0.28
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1.40
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0.030
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0.030
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X60/L415、X65/L450、X70/L485
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0.28
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1.40
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0.030
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0.030
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0.0PSL2
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B/L245
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0.24
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1.20
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0.025
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0.015
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X42/L290
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0.24
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1.30
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0.025
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0.015
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X46/L320、X52/L360、X56/L390
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0.24
|
1.40
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|
0.025
|
0.015
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X60/L415、X65/L450、X70/L485
|
0.24
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1.40
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0.025
|
0.015
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