低温无缝钢管，是钢管的一种，在低温下加工而成，无需无缝焊接，可用于各种行业的液体气压管道和气体管道等。执行标准ASTMA333--SeamlessandWeldedSteelPipeforLow-TemperatureService折叠编辑本段力学性能标准牌号抗拉强度(MPa)屈服强度(MPa)伸长率(%)纵向横向ASTMA333Grade1≥380≥205≥35≥25Grade3≥450≥240≥30≥20Grade4≥415≥240≥30≥16.5Grade6≥415≥240≥30≥16.5Grade7≥450≥240≥30≥22Grade8≥690≥515≥22Grade9≥435≥315≥28Grade10≥550≥450≥22Grade11≥450≥240≥18冲击温度级别很低冲击试验温度℉℃Grade1-50-45Grade3-150-100Grade4-150-100Grade6-50-45Grade7-100-75Grade8-320-195Grade9-100-75Grade10-75-60折叠编、化学成分标准牌号化学成分(%)CSiMnPSCrNiCuMoVAlASTMA333Grade1≤0.300.40-1.06≤0.025≤0.025Grade3≤0.190.18-0.370.31-0.64≤0.025≤0.0253.18-3.82Grade4≤0.120.18-0.370.50-1.05≤0.025≤0.0250.44-1.010.47-0.980.40-0.750.04-0.30Grade6≤0.30≥0.100.29-1.06≤0.025≤0.025Grade7≤0.190.13-0.32≤0.90≤0.025≤0.0252.03-2.57Grade8≤0.130.13-0.32≤0.90≤0.025≤0.0258.40-9.60Grade9≤0.200.40-1.06≤0.025≤0.0251.60-2.240.75-1.25Grade10≤0.200.10-0.351.15-1.50≤0.03≤0.015≤0.15≤0.25≤0.015≤0.50≤0.12≤0.06Grade11≤0.10≤0.35≤0.6≤0.025≤0.025≤0.5035.0-37.0≤0.50

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