Abstract / scope
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.
ISO 4948-1Under development
Steels — Classification — Part 1: Classification of steels based on chemical composition
Acier — Classification — Partie 1: Classification des aciers en fonction de leur composition chimique