常用ASTM鋼、鎳、銅、鋁、鈦及合金管件標準
①.有(you)縫(feng)焊接(jie)碳(tan)(tan)鋼管(Tube)的ASTM材料(liao)規(gui)(gui)范有(you):A178《鍋爐用(yong)電(dian)阻(zu)焊接(jie)碳(tan)(tan)鋼和(he)碳(tan)(tan)錳合金(jin)鋼管》、A214《換熱器和(he)冷凝器用(yong)電(dian)阻(zu)焊接(jie)碳(tan)(tan)鋼管》、A226《高壓鍋爐和(he)過熱器用(yong)電(dian)阻(zu)焊接(jie)碳(tan)(tan)鋼管》。 ②.碳(tan)(tan)鋼管件的ASTM材料(liao)規(gui)(gui)范有(you):...