Heat-treated steels, alloy steels and free-cutting steels; Part XIV : Steels for hot-formed and heat-treated springs
Описание (англ.):
Specifies grades of unalloyed and alloyed steels for hot-formed springs, listed in table 2 and intended for use in the quenched and tempered condition. Included requirements on production process, chemical composition, mechanical properties, hardenability, testing and dimensional tolerances.