常用公称压力下钢管壁厚选用表

1、常用公称压力下管道壁厚选用表 （一）无缝碳钢管壁厚 m m材料PNDNMPa101520253240506580100125150200250300350400450500600201.62.533333.53.544444.55677888912CrMo2.52.533323.53.544444.556778891015CrMo42.533333.53.5444.555.5789101112131512Cr1MoV6.43333.53.53.544.556789111214161719221033.53.544.54.5567891013151820221644.55566789111315

2、19242630342044.556678911131518222832364.0T3.5444.5555.5101.62.533333.53.544.5444.55.57788889Cr5Mo2.52.533333.53.544.5454.55.577899101242.533333.53.544.555.56891011121415186.43333.5444.555.578911131416182022261033.5444.555.5789101215182224261644.55567891012151822283236402044.55678911121518222634384.0

3、T3.5444.5555.516Mn1.62.52.52.533333.53.53.53.544.555.56666715MnV2.52.52.52.533333.53.53.53.544.555.56778942.52.52.533333.53.544.55678891011126.42.53333.53.53.544.55678911121314161810333.53.5444.5567891113151719163.53.544.555678911121619222528203.544.555.5678911131519242630(二)无缝不锈钢管壁厚 mm材料PNDNMPa1015

4、202532405065801001251502002503003504004505006001Cr18Ni9Ti1.02222.52.52.52.52.52.5333.53.53.5444.5含Mo不锈钢1.622.52.52.52.52.5333333.53.544.5552.522.52.52.52.52.53333.53.544.55667422.52.52.52.52.5333.544.556789106.42.52.52.53333.544.55678101113144.0T33.53.54444.5（三）焊接钢管壁厚 mm材料PNDNMPa20025030035040045050

5、060070080090010001100120014001600焊接碳钢管0.255555555666666777（Q235A20）0.655666667777888910155666778899101111121.66677889101112131415162.57899101112131516焊接不锈钢管0.2533333.53.53.54444.54.50.6333.53.53.5444.5556613.53.544.54.555.567781.644.55667789102.556789910121315钢钢管管壁壁厚厚等等级级表表示示方方法法钢钢管管的壁厚等级系列的表示方法在不同标

6、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，表示不锈钢钢管管）；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） 以钢钢管管壁厚尺寸表示，即“管外径壁厚”，如89X4钢钢管管壁壁厚厚分级表（GB标准）公外径(D)公称壁厚称DNA系列B系列SchSchSchLGSchSchSTDSchSchXSSchSchSchSchSch5s10s20s20304060

7、801001201401801521.3181.62.12.6-2.9-3.6-4.52026.9251.62.12.6-2.9-4-5.62533.7321.62.83.2-3.2-4.5-6.33242.4381.62.83.2-3.6-5-6.34048.3451.62.83.2-3.6-5-7.15060.3571.62.83.6-3.2-4-5.6-8.86576.176233.6-4.5-5-7.1-108088.989234-4.5-5.6-8-1190101.6-234-4.5-5.6-8-12.5100114.3108234-5-5.9-8.8-11-14.2125139.7

8、1332.93.45-5-6.3-10-12.5-16150168.31592.93.45-5.6-7.1-11-14.2-17.5200219.12192.946.3-6.37.1-810-12.51617.52022.22502732733.646.3-6.38-8.812.5-1617.522.22528300323.932544.56.3-6.38.8-1014.2-17.522.2252832350355.637745-8810101116132025.8283236400406.442645-88101012.517.51322.228.530364045045747845-88111014.22013253036404550050852955.681012.5101620132832404550550559-55.68-10-1330-6006106305.66.38-1017.5-1332-650660-8-10-13-700711720-8-10-13-750762-8-10-13-800813820-8-10-13-850864-8-