Formula rau xam qhov hnyav ntawm cov yeeb nkab steel

cev

kg / m (Carbon steel / gi yeeb nkab){{0}} [OD(mm)-WT(mm)]*WT(mm)*0.02466

square yeeb nkab los yog cov yeeb nkab square

kg/m(carbon steel/gi pipe)= {[OD1(mm) plus OD2(mm) plus OD3(mm) plus OD4(mm)]/3.14-WT(mm)} *WT(mm)*{0}}.02466