計(jì)算公式:W=0.02466×δ(D-δ)說(shuō)明:理論質(zhì)量按密度7.85g/cm3計(jì)算。D—外徑δ—壁厚直縫電焊鋼管的尺寸及質(zhì)量D=5~10外徑D/mm壁厚δ/mm理論質(zhì)量W/kg外徑D/mm壁厚δ/mm理論質(zhì)量W/kg1m6m7.5m12m1m6m7.5m12m55558880.50.60.81.00.50.60.80.0550.0650.0830.0990.0920.1090.14 (共 19617 字) [閱讀本文] >>