60*1600*C??201??·?????÷??????????С??????

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     ???????????????й??????????????????????????????????ASTM??ASME????????JISS????????DIN????????BS????????? IO????????EN ???????????????????????????????????и???????????????????????????????8-600mm???4.5m ??????18m????????????????? ?????????????????????m??0.5mm????????100mm???8mm?????γ???1mm???и??????? 100mm?12.5????100mm?25???и??????????????

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?????????????????????λ????? kg ???????????????

W ???????? kg ?? = F ??????? mm2 ???? L ??????? m ??????????? g/cm3 ???? 1/1000

????????? 7.85g/cm3
??壨kg/m2??W= 7.85 ??d       d= ??       

??? 4mm ???壬???m2 ???????m2 ????=7.85 ??4=31.4kg

60*1600*C??q345qc??·?????????????????????С??????