Heat-treatable steels, alloy steels and free-cutting steels — Part 2: Alloy steels for quenching and tempering
Aciers pour traitement thermique, aciers alliés et aciers pour décolletage — Partie 2: Aciers alliés pour trempe et revenu
77.140.10 - Heat-treatable steels.
77.140.20 - Stainless steels. Including alloyed steels, corrosion-resistant steels, heat-resisting steels, etc.
77.140.45 - Non-alloyed steels.
Anula a: ISO 683-1:1987
Anula a: ISO/TR 11637:1997
Es anulada por: ISO 683-2:2016
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