工艺管道管壁厚及等级对照表优质资料(可以直接使用，可编辑优质资料，欢迎下载）工艺管道管壁厚及等级对照表壁厚管表号管径无缝钢管壁厚管表号焊接钢管镀锌焊管管道等级所用材质SCH20SCH30SCH40SCH80SCH160XXS管径SCH20SCH40SCH40加厚SCH80加厚DN15ø22---3.04.05.0DN15ø21.3-2.8-3.51.6A120#DN20ø27---3.04.07.0DN20ø26.9-2.8-3.51.6B1Q235B+镀锌DN25ø34---3.54.59.0DN25ø33.7-3.2-4.01.6B2焊管Q235BDN32ø42---3.55.0-DN32ø42.4-3.5-4.02.5A120#DN40ø48---4.05.010.0DN40ø48.3-3.5-4.52.5A220#DN50ø603.5-4.05.0--DN50ø60.3-3.8-4.52.5L11Cr18Ni9DN65ø764.5-5.06.0--DN65ø76.14.0-4.5-2.5k100Cr17Ni14Mo2DN80ø894.5-5.56.5--DN80ø88.94.0-5.0-4.0A120#DN100ø1145.0-6.07.0--DN100ø114.3--5.0-4.0A220#DN125ø1405.0-6.58.0--DN125ø139.74.0-5.5-4.0c115MoRDN150ø1685.56.57.09.5-28.0DN150ø168.34.5-6.0-4.0l11Cr18Ni9DN200ø2196.57.08.010.0-35.0------4.0k100Cr17Ni14Mo2DN250ø2736.58.09.513.0-40.0------6.4k100Ccr17Ni14Mo2DN300ø3256.58.510.014.0--------10.0A120GDN350ø3778.09.511.0---------42.0A120#DN400ø4268.09.5----------DN450ø4808.011.0----------DN500ø5309.513.0----------DN600ø6309.514.0----------公称通径NominalPipeSize外径OutsideDiameter公称壁厚TNorminalWallThicknessNPSBNDSCH5sSCH10sSCH10SCH20SHC30SCH40sSTDSCH40SCH60SCH80sXSSCH80SCH100SCH120SCH104SCH160XXS1/81/43/8681010.313.717.1---------1.241.651.65---------------------------1.732.242.311.732.242.311.732.242.31---------2.413.023.202.413.023.202.413.023.20---------------------------------------------1/23/4115202521.326.733.41.651.651.652.112.112.77---------------------------2.772.873.382.772.873.382.772.873.38---------3.733.914.553.733.914.553.733.914.55---------------------------4.785.566.357.477.829.0911/411/2232405042.248.360.31.651.651.652.772.772.77---------------------------3.563.683.913.563.683.913.563.683.91---------4.855.085.544.855.085.544.855.085.54---------------------------6.357.148.749.7010.1511.0721/2331/265809073.088.9101.62.112.112.113.053.053.05---------------------------5.165.495.745.165.495.745.165.495.74---------7.017.628.087.017.628.087.017.628.08