管道压力壁厚对照表.doc

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1、一）无缝碳钢管壁厚                               mm材料PNMPaDN101520253240506580100125150200250300350400450500600 2012CrMo15CrMo12Cr1MoV≤1.62.533333.53.544444.556778889 2.52.533323.53.544444.5567788910 4.02.533333.53.5444.555.57891011121315 6.43333.53.53.544.55678

2、911121416171922 10.033.53.544.54.556789101315182022    16.044.555667891113151924263034    20.044.55667891113151822283236     4.0T3.5444.5555.5              10Cr5Mo≤1.62.533333.53.544.5444.55.57788889 2.52.533333.53.544.5454.55.5778991012 4.02.533333.53.

3、544.555.5689101112141518 6.43333.5444.555.57891113141618202226 10.033.5444.555.578910121518222426    16.044.5556789101215182228323640    20.044.5567891112151822263438      4.0T3.5444.5555.5              16Mn15MnV≤1.62.52.52.533333.53.53.53.544.555.56666

4、7 2.52.52.52.533333.53.53.53.544.555.567789 4.02.52.52.533333.53.544.5567889101112 6.42.53333.53.53.544.556789111213141618 10.0333.53.5444.5567891113151719    16.03.53.544.555678911121619222528    20.03.544.555.5678911131519242630       无缝不锈钢管壁厚 压力对照 (二

5、)无缝不锈钢管壁厚                          mm材料PNMPaDN1015202532405065801001251502002503003504004505006001Cr18Ni9Ti含Mo不锈钢≤1.02222.52.52.52.52.52.5333.53.53.5444.5   1.622.52.52.52.52.5333333.53.544.555   2.522.52.52.52.52.53333.53.544.55667   4.022.52.52.52.52.

6、5333.544.55678910   6.42.52.52.53333.544.5567810111314   4.0T33.53.54444.5              焊接钢管壁厚对照表（三）焊接钢管壁厚                           mm材料PNMPaDN20025030035040045050060070080090010001100120014001600焊接碳钢管（Q235A20）0.2555555556666667770.6556666677778889101.

7、05566677889910111112 1.6667788910111213141516  2.57899101112131516      焊接不锈钢管0.2533333.53.53.54444.54.5    0.6333.53.53.5444.55566    1.03.53.544.54.555.56778     1.644.5566778910      2.556789910121315       钢管理论重量表钢管直径对照表钢管材质对照表管子壁厚计算公式：＝PD/（2[σ]t＋

8、P）＋C式中：——管壁厚mmP——工作压力MPa，。D——管子外径mm——焊缝系数，无缝钢管＝1，直缝钢管＝0.8，螺旋[σ]t——管材在各种温度下的许用应力MPaC——壁厚附加量mmC＝C1+C2+C3，一般取2～4mmC1＝C×15％（12.5％）C2＝腐蚀裕度，一般取2mmC3＝管螺纹深