镀锌管相关资料 钢管重量计算公式:[(外径-壁厚)*壁厚]*0.02466=kg/米(每米的重量) 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） 米重kg根重kg米重kg根重kg 公称内径（毫米）英寸DN151/221.3 2.82.451.287.681.3578.14DN203/426.92.82.451.669.961.7610.56DN25133.73.22.82.4114.462.55415.32DN321.2542.43.53.063.3620.163.5621.36DN401.548.33.53.063.8723.224.1024.60DN50260.33.83.3255.2931.745.60733.64DN652.576.14.03.57.1142.667.53645.21DN80388.94.08.3850.288.8853.28DN1004114.34.010.8865.2811.5369.18DN12551404.515.0490.2415.94298.65DN1506168.34.518.18109.0819.27115.62 DN200 8 219.1 6.0（焊管） 31.53189.18 DN2008219.1 6.5（热镀锌） 36.12216.72 镀锌钢管尺寸规格表 公称口径外径壁厚镀锌管壁黑铁管增加的重量系数MMMMMM普通钢管加厚钢管热镀锌方管
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