ISO 4991:2024

International Standard   Current Edition · Approved on 22 November 2024

Steel castings for pressure purposes

ISO 4991:2024 Files

English 20 Pages
Current Edition
63.28 OMR

ISO 4991:2024 Scope

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.

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