标准号:BS S 157-1976
中文标准名称:规范.3%镍-铬-钼表面硬化钢方坯、棒材、锻件及零件(1180-1380MPa)
英文标准名称:Specification - 3% nickel-chromium-molybdenum case-hardening steel billets, bars, forgings and parts (1180-1380 MPa)
标准类型:H40
发布日期:1976/4/30 12:00:00
实施日期:1976/4/30 12:00:00
中国标准分类号:H40
国际标准分类号:49.025.10
适用范围:3 % nickel-chromium-molybdenum case-hardening steel billets, bars, forgings and parts
(1180-1380 MPa)
1. Inspection and testing procedure
2. Manufacture
3. Chemical composition
4. Surface dressing
5. Condition
6. Heat treatment
7. Mechanical properties
8. Grain size.