管道压力和壁厚对照表

（一）无缝碳钢管壁厚与压力对照表                             PNDN材料MPa10152025324050658010012515020025030035020≤1.62.533333.53.544444.5567712CrMo2.52.533323.53.544444.5567715CrMo42.533333.53.5444.555.571012Cr1MoV6.43333.53.53.544.55671112141033.53.544.54.5567101315182014.555667111315192426302044.55667111315182228323.0T3.5444.5555.510≤1.62.533333.53.544.5444.55.5778Cr5Mo2.52.533333.53.544.5454.55.577842.533333.53.544.555.5610116.43333.5444.555.57111314161033.5444.555.5710121518222414.5556710121518222832362044.556711121518222634384.0T3.5444.5555.516Mn15MnV≤1.62.546.41016202.52.52.52.533.53.52.52.52.5333.542.52.52.533.544.533333.54.553333.5455.53333.54563333.54.5673.53.53.545783.53.53.54.563.53.54579113.543.544.556711121315DN12515033.533.53.544.55674.54.56811161955791319245.55.581115222666812172530（二）无缝不锈钢管壁厚 与压力对照PN材料MPa1015202532401Cr18Ni9Ti≤1.02222.52.52.5含Mo不锈钢1.622.52.52.52.52.52.522.52.52.52.52.5422.52.52.52.52.56.42.52.52.53334.0T33.53.5444（三）焊接钢管（直缝焊管）壁厚与压力对照表PNMPa200250300350400450材料焊接碳钢管0.25555555（Q235A20）0.655666615566671.66677882.57910110.2533333.53.5502.53333.54.5652.53334802.5333.54.5100333.5452003.53.54.5682503.54571030044.568113504569135005679123.560067810134DN7006781115480067912190010001100120014001600666777788109101111121314151.54.5焊接不锈钢管0.611.62.533.54533.54.563.54573.54.5683.54.569444.555.5677101255779101315686表

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