BS 970-3:1971被替代
Specification for wrought steels in the form of blooms, billets, bars and forgings. Steels for case hardening
出版：British Standards Institution
专家解读视频
General requirements: information to be supplied by purchaser, product analysis and permitted variations, condition of material on delivery, provision of test material, testing, etc. En steels replaced. Specific requirements for alloy steels for case hardening supplied to close limits of chemical composition, to hardenability requirements, and to specified mechanical properties. Purchase to hardenability requirements, chemical composition of individual steels, hardenability data. Summary tables.
© British Standards Institution 2013
Replaces notes:
Replaces BS 970:1955.
Amendment notes:
AMD 1166
AMD 1418
