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1、焊接钢管理论重量表公称口径普通钢管加厚钢管（mm）（in）壁厚（mm）理论重量（Kg/m）壁厚（mm）理论重量（Kg/m）61/820.392.50.4681/42.250.622.750.73103/82.250.322.750.97151/22.751.263.251.45203/42.751.633.52.012513.252.4242.913211/43.253.1343.784011/23.53.844.254.585023.54.884.56.166521/23.756.644.57.8880348.344.759.811004410.85513.4412554.515.045.5
2、18.2415064.517.815.521.632004.522.19镀锌钢管理论重量规格外径mm壁厚mm最小壁厚mm焊管（6米定尺）镀锌管(6米定尺）公称内径英寸米重kg根重kg米重kg根重kgDN151/221.32.82.451.287.681.3578.142DN203/426.92.82.451.669.961.7610.56DN25133.73.22.82.4114.462.55415.32DN321.2542.43.53.063.3620.163.5621.36DN401.548.33.53.063.8723.224.1024.60DN50260.33.83.3255.2931
3、.745.60733.64DN652.576.14.03.57.1142.667.53645.21DN80388.94.08.3850.288.8853.28DN1004114.34.010.8865.2811.5369.18DN12551404.515.0490.2415.94298.65DN1506168.34.518.18109.0819.27115.62DN2008219.16.0（焊管）31.53189.18DN2008219.16.5（热镀锌）36.12216.7常用镀锌钢管规格表公称口径外径壁厚镀锌管壁黑铁管增加的重量系数MMMMMM普通钢管加厚钢管610.021.0641.05
4、9813.52.751.0561.0461017.03.501.0561.0461521.33.151.0471.0392026.83.401.0461.0392533.54.251.0391.0323242.35.151.0391.0324048.04.001.0361.0305060.05.001.0361.0286575.55.251.0341.0288088.54.251.0321.027100114.07.001.0321.026125140.07.501.0281.023150165.07.501.0281.023说明W=C*0.02466*(D-S)*S注释W-镀锌管每米重量：kg/mC-镀锌管比黑铁管增加的重量系数D-黑铁管的外径S-黑铁管的壁厚