鍍鋅鋼管常用規格公稱口徑外徑壁厚鍍鋅管壁黑鐵管增添的重量系數MMMMMM通俗鋼管加厚鋼管610.021.0641.059813.52.751.0561.0461017.03.501.0561.0461521.33.151.0471.0392026.83.401.0461.0392533.54.251.0391.0323242.35.151.0391.0324048.04.001.0361.0305060.05.001.0361.0286575.55.251.0341.0288088.54.251.0321.027100114.07.001.0321.026125140.07.501.0281.023150165.07.501.0281.023申明：W=C*[0.02466*(D-S)*S]W--鍍鋅管每米重量：k/mC--鍍鋅管比黑鐵管增添的重量系數D--黑鐵管的外徑S--黑鐵管的壁厚

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