ISO 4991:2024

Steel castings for pressure purposes

This document covers steel castings for pressure containing parts.

It includes materials which are used for the manufacture of components subject to pressure vessel codes and components not subject to codes.

This document relates to castings manufactured from unalloyed and alloyed steel grades (characterized by their chemical composition given in Table?1, and mechanical properties in Tables?2, 3, 4 and 5).

NOTE??????????? Annex?D gives information on ISO grade designation and available UNS numbers which are similar to the ISO grade designation.

Edition	2024
Published Date	2024
Published By	International Standardization Organisation
Page Count	20