銅管的質(zhì)量計(jì)算如下：G=8.96πδ（D-δ）/1000

G：質(zhì)量kg δ：管壁厚mm D：管直徑mm

適宜制造紫銅管銅材的牌號(hào)為T1、T2。 

T1的化學(xué)成份　Cu+Ag99.95%，P0.001%，Bi0.001%，Sb0.002%，As0.002%，F(xiàn)e0.005%，Ni0.002%，Pb0.003%,Sn0.002%,S0.005%，Zn0.005%，O0.02%。

T2的化學(xué)成份　Cu+Ag99.95%，Bi0.001%，Sb0.002%，As0.002%，F(xiàn)e0.005%，Pb0.005%,S0.005%。

導(dǎo)熱率（λ）384/W·(m·K)-1

比熱熔（C) 0.394/kj·(kg·K)-1