prBAS ISO 4991:2027
Steel castings for pressure purposes
General information
Status:Project
Number of pages:24
Adoption method:Korice
Language:engleski
Edition:4.
Realization date:24.09.2026
Forseen date for next stage code:05.10.2026
Technical committee:BAS/TC 4, Steel, steel products, non-ferrous metals and alloys
ICS:
77.140.30, Steels for pressure purposes
77.140.80, Iron and steel castings
77.140.80, Iron and steel castings
Abstract
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.
Lifecycle
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Original document and degree of correspondence
ISO 4991:2024, identical
Relation to BAS standards
Work material
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