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ISO 4991:2024

Steel castings for pressure purposes

General information

Valid from 22.11.2024
Directives or regulations
None

Standard history

Status
Date
Type
Name
22.11.2024
Main
14.12.2015
Main
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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