常用公称压力下管道壁厚选用表双击自动滚屏发布者：无缝钢管发布时间：2009-11-14阅读：818次【字体：大中小】材料PNMPaDN1015202532405065801001251502002503003504004505006002012CrMo15CrMo12Cr1MoV≤1.62.533333.53.544444.5567788892.52.533323.53.544444.55677889104.02.533333.53.5444.555.578910111213156.43333.53.53.544.5567891112141617192210.033.53.544.54.55678910131518202216.044.55566789111315192426303420.044.556678911131518222832364.0T3.5444.5555.510Cr5Mo≤1.62.533333.53.544.5444.55.577888892.52.533333.53.544.5454.55.57789910124.02.533333.53.544.555.56891011121415186.43333.5444.555.5789111314161820222610.033.5444.555.57891012151822242616.044.555678910121518222832364020.044.55678911121518222634384.0T3.5444.5555.516Mn15MnV≤1.62.52.52.533333.53.53.53.544.555.5666672.52.52.52.533333.53.53.53.544.555.5677894.02.52.52.533333.53.544.55678891011126.42.53333.53.53.544.55678911121314161810.0333.53.5444.556789111315171916.03.53.544.55567891112161922252820.03.544.555.5678911131519242630(二)无缝不锈钢管壁厚mm材料PNMPaDN1015202532405065801001251502002503003504004505006001Cr18Ni9Ti含Mo不锈钢≤1.02222.52.52.52.52.52.5333.53.53.5444.51.622.52.52.52.52.5333333.53.544.5552.522.52.52.52.52.53333.53.544.556674.022.52.52.52.52.5333.544.556789106.42.52.52.53333.544.55678101113144.0T33.53.54444.5（三）焊接钢管壁厚mm材料PNMPaDN20025030035040045050060070080090010001100120014001600焊接碳钢管（Q235A20）0.2555555556666667770.6556666677778889101.055666778899101111121.66677889101112131415162.57899101112131516焊接不锈钢管0.2533333.53.53.54444.54.50.6333.53.53.5444.555661.03.53.544.54.555.567781.644.55667789102.556789910121315钢管壁厚等级表示方法|管子表号（Sch）表示|管子重量表示|钢管壁厚尺寸表示钢管的壁厚等级系列的表示方法在不同标准中所表示的方法各不相同。主要有三种表示方法：（1）以管子表号（Sch）表示：对于碳钢管壁厚有：Sch10、20、30、40、60、80、100、120、140、160等10个等级（若数字后面加S，表示不锈钢管）；对于不锈钢壁厚系列有：5S、10S、40S、80S四个等级（2）以管子重量表示，如STD(标准重量)，XS(加厚管)，XXS(特厚管)（3）以钢管壁厚尺寸表示，即“管外径×壁厚”，如φ89X4钢管壁厚分级表（GB标准）公称直径DN外径(D)公称壁厚A系列B系列Sch5sSch10sSch20sLGSch20Sch30STDSch40Sch60XSSch80Sch100Sch120Sch140Sch18015202521.326.933.71825321.61.61.62.12.12.82.62.63.2------------2.92.93.2------3.64.04.5---------4.55.66.332405042.448.360.33845571.61.61.62.82.82.83.23.23.6-----3.2------3.63.64.0------5.05.05.6---------6.37.18.865809076.188.9101.67689-2.02.02.03.03.03.03.64.04.0---4.54.54.5------5.05.65.6------7.18.08.0---------10.011.012.5100125114.31081332.02.93.03.44.05.0--5.05.0----5.96.3----8.810.0--11.012.5--14.216.0150139.7168.31592.93.45.0-5.6--7.1--11.0-14.2-17.5200250300219.1273.0323.92192733252.93.64.04.04.04.56.36.36.3---6.36.36.37.18.08.8---8.08.810.010.012.514.2---12.516.017.516.017.522.217.522.225.020.025.028.022.228.032.0350400450500550600355.6406.4457.0508.0559610377426478529-6304.04.04.05.05.05.65.05.05.05.65.66.3---8.08.08.08.08.08.08.08.08.010.0--10.010.011.012.5--10.010.010.010.010.010.011.012.514.216.0-17.516.017.520.020.0--13.013.013.013.013.013.020.022.225.028.030.032.025.828.530.032.0--28.030.036.040.0--32.036.040.045.0--36.040.045.050.0--650700750660711762-720----------8.08.08.0------10.010.010.0------13.013.013.0---------------800813820---8.--10.0--13.0-----850900864914-920------08.08.0----10.010.0----13.013.0--...
