1常用公稱壓力下管道壁厚選用表

1、無縫碳鋼管壁厚 mm材料PNDNMpa1015202532405065801001251502002503003504004505006001.62.533333。53。544444.5567788892.52.533333。53.544444.55677889102042.533333.53.5444.555。5789101112131512CrMo6.43333.53。53。544.5567891112141617192215CrMo1033。53.544.54。55678910131518202212Cr1MoV1644。5556678911131519242630342044。5566

2、78911131518222832364.0T4。5444.5555.51.62.533333.53。544.5444.55。577888892。52.533333。53.544.5454。55。57789991242.533333.53.544.555。5689101112141518106。43333.5444。5567891113141618202226Cr5Mo1033。5444。555.5789101215182224261644.55567891012151822283236402044.55678911121518222634384。0T3。5444.5555。51。62。52.

3、52.533333。53。53。53.544。555。5666672.52。52。52.533333。53.53.53。544.555.56778916Mn42.52。52。533333。53.544。556788910111215MnV6.42。53333。53.53.544。55678911121314161810333.53.5444.5567891113151719163。53.544。555678911121619222528203.544.555.5678911131519242630無縫不銹鋼管壁厚 mm材料PNDNMpa10152025324050658010012515020

4、02503003504004505006001Cr18Ni9Ti1。02222.52。52。52。52.52。5333.53.53。5444。51.622.52.52.52。52.5333333.53。544.5552。522。52.52.52。52.5333。53。53。544。55667422.52。52。52.52。5334.544.556789106.42.52。52.53333。545678101113144.0T33。53.54444。5焊接鋼管壁厚 mm材料PNDN焊接碳鋼管Q235A20Mpa2002503003504004505006007008009001000110012

5、00140016000。2555555556666667770.655666667777888910155666778899101111121.66677889101112131415162.57899101112131516焊接不銹鋼管0。2533333。53.53。54444.54.50。6333.53.53.5444。5556613。53.544.54。555.567781.644。55667789102.556789910121315注:1.表中”40T"表示外徑加工螺紋的管道，適用于PN4。0的閥體連接。2.DN25的”大腐蝕余量"的碳鋼管的壁厚應(yīng)按表中數(shù)值再增3mm。3.本指標書記按承受內(nèi)壓計算。4。計算中采用的許用應(yīng)力值依次為:120。0MPa 100.0MPa 150.0MPa 120.