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ISO/DIS 4948-1

Steels — Classification — Part 1: Classification of steels based on chemical composition

General information

Current stage: 40.00 Effective date: Oct 3, 2025

Originator: ISO

Owner: ISO/TC 17

Type: International Standard

ICS: 77.080.20

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/DIS 4948-1

Steels — Classification — Part 1: Classification of steels based on chemical composition

General information

Scope

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