鍍鋅鋼（gāng）管常用規格公稱口徑外（wài）徑壁厚鍍鋅管壁黑鐵管增添的重量係數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（shēn）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（de）重量（liàng）係數D--黑鐵管的（de）外徑（jìng）S--黑鐵管的壁厚

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