1. 碳素工具鋼(GB/T 1298—1986)

(1)碳素工具鋼的化學(xué)成分(表2-138)表2-138碳素工具鋼的化學(xué)成分牌號化學(xué)成分/%碳錳硅≤硫≤磷≤T7T8T8MnT9T10T11T12T13T7AT8AT8MnAT9AT10AT11AT12AT13A0.65～0.750.75～0.840.80～0.900.85～0.940.95～1.041.05～1.141.15～1.241.25～1.350.65～0.750.75～0.840.80～0.900.8 ......（本文共 1957 字 ）     [閱讀本文] >>