NA 021

DIN Standards Committee Iron and Steel

DIN EN ISO 4957 [Withdrawn] references following documents:

Document number Edition Title
DIN EN 10020 2000-07 Definition and classification of grades of steel; German version EN 10020:2000 More 
ISO 4948-1 1982-06 Steels; Classification; Part 1 : Classification of steels into unalloyed and alloy steels based on chemical composition More