提供者:滄州市海威鋼管有限公司 www.bionade.com.cn
鋼管種類
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外徑(D)
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壁厚(S)
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冷拔管
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鋼管外徑(mm)
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允許偏差(mm)
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允許偏差(mm)
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<114.3
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±0.79
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-12.5%
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≥114.3
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-0.5%,+1%
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標準
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牌號
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抗拉強度(MPa)
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屈服強度(MPa)
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伸長率(%)
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硬度
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API SPEC 5CT
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J55
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≥517
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379~552
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查表
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K55
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≥517
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≥655
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N80
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≥689
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552~758
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L80(13Cr)
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≥655
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552~655
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≤241HB
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P110
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≥862
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758~965
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標準
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牌號
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化學成分(%)
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C
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Si
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Mn
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P
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S
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Cr
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Ni
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Cu
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Mo
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V
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Als
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API SPEC 5CT
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J55K55
(37Mn5)
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0.34~0.39
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0.20~0.35
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1.25~1.50
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≤0.020
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≤0.015
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≤0.15
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≤0.20
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≤0.20
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|
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≤0.020
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N80
(36 Mn2V)
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0.34~0.38
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0.20~0.35
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1.45~1.70
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≤0.020
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≤0.015
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≤0.15
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|
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0.11~0.16
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≤0.020
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L80(13Cr)
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0.15~0.22
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≤1.00
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0.25~1.00
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≤0.020
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≤0.010
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12.0~14.0
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≤0.20
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≤0.20
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|
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≤0.020
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P110,
(30CrMo)
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0.26~0.35
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0.17~0.37
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0.40~0.70
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≤0.020
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≤0.010
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0.80~1.10
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≤0.20
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≤0.20
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0.15~0.25
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≤0.08
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≤0.020
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友情鏈接:海威公司 |