This part of ISO 4948 defines steel and gives 2.0 % carbon as the usual dividing line between steel and cast iron. The classification based on the specified values for the ladle analyses of the elements given in the table.
Document identifier
ISO 4948-1:1982
Title
Steels -- Classification -- Part 1: Classification of steels into unalloyed and alloy steels based on chemical composition
ISO Category
TC 17: Steel
Publication date
1982-06-01
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