公称压力(MPa)管道壁厚对照表(共11页).doc
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1、精选优质文档-倾情为你奉上(2019年)最新公称压力(MPa)管道壁厚对照表 (一)无缝碳钢管壁厚 m m材料PNMPaDN1015202532405065801001251502002503003504004505006002012CrMo15CrMo12Cr1MoV1.62.533333.53.544444.5567788892.52.533323.53.544444.55677889104.02.533333.53.5444.555.578910111213156.43333.53.53.544.5567891112141617192210.033.53.544.54.556789101
2、31518202216.044.55566789111315192426303420.044.556678911131518222832364.0T3.5444.5555.510Cr5Mo1.62.533333.53.544.5444.55.577888892.52.533333.53.544.5454.55.57789910124.02.533333.53.544.555.56891011121415186.43333.5444.555.5789111314161820222610.033.5444.555.57891012151822242616.044.55567891012151822
3、2832364020.044.55678911121518222634384.0T3.5444.5555.516Mn15MnV1.62.52.52.533333.53.53.53.544.555.5666672.52.52.52.533333.53.53.53.544.555.5677894.02.52.52.533333.53.544.55678891011126.42.53333.53.53.544.55678911121314161810.0333.53.5444.556789111315171916.03.53.544.55567891112161922252820.03.544.55
4、5.5678911131519242630(二)无缝不锈钢管壁厚 mm材料PNMPaDN1015202532405065801001251502002503003504004505006001Cr18Ni9Ti含Mo不锈钢1.02222.52.52.52.52.52.5333.53.53.5444.51.622.52.52.52.52.5333333.53.544.5552.522.52.52.52.52.53333.53.544.556674.022.52.52.52.52.5333.544.556789106.42.52.52.53333.544.55678101113144.0T33.5
5、3.54444.5(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0.2533333.53.53.54444.54.50.6333.53.53.5444.555661.03.53.544.54.555.567781.644.55667789102.5
6、56789910121315内压金属直管的壁厚根据SH 3059-2001石油化工管道设计器材选用通则确定:当S0 Do /6时, 直管的计算壁厚为:S0 = P D0/(2t+2PY)直管的选用壁厚为: S = S0 + C式中 S0 直管的计算壁厚, mm;P设计压力, MPa;D0直管外径, mm; t 设计温度下直管材料的许用应力, MPa;焊缝系数, 对无缝钢管, 1;S包括附加裕量在内的直管壁厚, mm; C 直管壁厚的附加裕量, mm;Y温度修正系数, 按下表选取。温度修整系数表钢管壁厚表示方法有管子表号、钢管壁厚尺寸和管子重量三种方法1)是以管子表号Sch表示壁厚。管子表号是管
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- 公称 压力 MPa 管道 对照 11
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