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PNMPaDN101520253240506580100125150200250300350400450 5006002012CrMo15CrMo12Cr1MoVw 1.62.533333.53.544444.5567788892.52.533323.53.544444.556778891042.533333.53.5444.555.578910111213156.43333.53.53.544.556789111214161719221033.53.544.54.5567891013151820221644.5556678911131

2、519242630342044.556678911131518222832364.0T3.5444.5555.510Cr5Mow 1.62.533333.53.544.5444.55.577888892.52.533333.53.544.5454.55.577899101242.533333.53.544.555.56891011121415186.43333.5444.555.578911131416182022261033.5444.555.5789101215182224261644.55567891012151822283236402044.5567891112151822263438

3、4.0T3.5444.5555.516Mn15MnVw 1.62.52.52.533333.53.53.53.544.555.5666672.52.52.52.533333.53.53.53.544.555.56778942.52.52.533333.53.544.55678891011126.42.53333.53.53.544.55678911121314161810333.53.5444.5567891113151719163.53.544.555678911121619222528203.544.555.5678911131519242630（二）无缝不锈钢管壁厚mm材料PNMPaDN

4、1015202532405065801001251502002503003504004505006001Cr18Ni9Ti含Mo不锈钢< 1.02222.52.52.52.52.52.5333.53.53.5444.51.622.52.5:2.5 12.52.53 13333r 3.53.544.5552.522.52.52.52.52.53333.53.544.55667422.52.52.52.52.5333.544.556789106.42.52.52.53333.544.55678101113144.0T33.53.54444.5（三）焊接钢管壁厚mm材料PNMPaDN20025

5、030035040045050060070080090010001100120014001600焊接碳钢管（Q235A20）0.25r 55555r 5566 :6r 6667 17r 70.655666667777888910155666778899101111121.66677889101112131415162.57899101112131516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钢管壁厚等级表示方法钢管

6、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：Sch1020、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X壁厚”，如 $ 89X4 钢管壁厚分级表（G酥准）公 称外径（D）公称壁厚DNA系列B系列SchSchSchLGSchSchSTDSchSchXSSchSchSchSchSch5s10s20s2

7、0304060801001201401801521.3181.62.12.62.93.64.52026.9251.62.12.62.945.62533.7321.62.83.23.24.56.33242.4381.62.83.23.656.34048.3451.62.83.23.657.15060.3571.62.83.63.245.68.86576.176233.64.557.1108088.9892344.55.681190101.6-2344.55.6812.5100114.310823455.98.81114.2125139.71332.93.4556.31012.516150168.

8、31592.93.455.67.11114.217.5200219.12192.946.36.37.181012.51617.520P 22.22502732733.646.36.388.812.51617.522.22528300323.932544.56.36.38.81014.217.522.2252832350355.637745-8810101116132025.8283236400406.442645-88101012.517.51322.228.530364045045747845-88111014.22013253036404550050852955.681012.5101620132832404550550559-55.6810-13306006106305.66.381017.51332650660-81013700711r 72081013750762-8