Approved Work Item
ISO/AWI 4948-1
Steels — Classification — Part 1: Classification of steels into unalloyed and alloy steels based on chemical composition
Reference number
ISO/AWI 4948-1
Edition 2
© ISO 2025
Approved Work Item
Under development
A working group has prepared a draft.
Will replace ISO 4948-1:1982

Abstract

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.

General information

  • Status
     : Under development
    Stage
    : New project registered in TC/SC work programme [20.00]
  • Edition
     : 2
  • Technical Committee :
    ISO/TC 17
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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