公称压力管道壁厚对照表47255

公称压力（MPa）管道壁厚对比表 （一）无缝碳钢管壁厚 m m材料PNMPaDN101520253240506580100125150200250300350400450500600 2012CrMo15CrMo12Cr1MoV≤1。6 2.533333。5 3.544444。5 56778889 2。52.533323。5 3.544444。5 567788910 4.02。5 33333。5 3.5444.555.57891011121315 6。43333。5 3.53.544.55678911121416171922 10.033.53.544。5 4。5 56789101315182022 16.044.555667891113151924263034 20.044。5 5667891113151822283236 4.0T3。5 444。5 555。5 10Cr5Mo≤1.62。5 33333.53.544.5444.55。5 7788889 2。52.533333.53.544。5 454。5 5。5 778991012 4.02.533333.53.544。5 55.5689101112141518 6。43333。5 444。5 55.57891113141618202226 10.033。5 444.555。5 78910121518222426 16。044.5556789101215182228323640 20。044。5 567891112151822263438 4。0T3。5 444.5555。5 16Mn15MnV≤1.62.52.52.533333。5 3。5 3.53。5 44.555.566667 2。52。5 2.52.533333。5 3.53.53.544.555.567789 4。02。5 2。5 2。5 33333.53。5 44。5 567889101112 6。42。5 3333.53.53.544.556789111213141618 10。0333。5 3。5 444。5 567891113151719 16。03.53.544.555678911121619222528 20。03。5 44.555.5678911131519242630 （二)无缝不锈钢管壁厚 mm材料PNMPaDN1015202532405065801001251502002503003504004505006001Cr18Ni9Ti含 Mo 不锈钢≤1.02222.52。5 2。5 2.52.52.5333.53.53。5444.5 1.622.52。5 2.52.52。5 333333.53.544。555 2。522。5 2.52.52。5 2。5 3333.53。544。55667 4.022.52。5 2.52.52。5 333。5 44.55678910 6.42。5 2。5 2.53333。5 44.5567810111314 4.0T33.53.54444。5 （三）焊接钢管壁厚 mm材料PNMPaDN20025030035040045050060070080090010001100120014001600焊接碳钢管(Q235A20）0。2555555556666667770。6556666677778889101.05566677889910111112 1.6667788910111213141516 2。57899101112131516 焊接不锈钢管0。2533333.53.53.54444。54。5 0.6333.53.53.5444.55566 1。03。53.544.54。555。56778 1。644.5566778910 2。556789910121315