2. 優(yōu)質(zhì)碳素結(jié)構(gòu)鋼(GB/T 699—1999)

(1)優(yōu)質(zhì)碳素結(jié)構(gòu)鋼的化學(xué)成分(表2-89)表2-89優(yōu)質(zhì)碳素結(jié)構(gòu)鋼的化學(xué)成分牌號(hào)化學(xué)成分/%碳硅錳鉻鎳銅≤08F10F15F0810152025300.05～0.110.07～0.130.12～0.180.05～0.110.07～0.130.12～0.180.17～0.230.22～0.290.27～0.34≤0.03≤0.07≤0.070.17～0.370.17～0.370.17～ ......（本文共 5589 字 ）     [閱讀本文] >>