BS 970-5:1972被替代
Specification for wrought steels in the form of blooms, billets, bars and forgings. Carbon and alloy spring steels for the manufacture of hot formed springs
出版：British Standards Institution
專家解讀視頻
General requirements: information to be supplied by the purchaser, product analysis and permitted variations, frequency of tests etc. En steels replaced. Specific requirements for spring steels supplied to close limits of chemical composition; composition of individual steels. Specific requirements for spring steels supplied to hardenability requirements; chemical compositions of individual steels, hardenability data . Standard sizes and tolerances appended.
? British Standards Institution 2013
Replaces notes:
Replaces BS 970:1955.
Amendment notes:
AMD 1420
EURONORM 89:1971 - Similar
