BS ISO 4991:2015 - Steel castings for pressure purposes

BS ISO 4991:2015

Steel castings for pressure purposes

Status : Current, Under review   Published : January 2016



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


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

Standard NumberBS ISO 4991:2015
TitleSteel castings for pressure purposes
StatusCurrent, Under review
Publication Date31 January 2016
Normative References(Required to achieve compliance to this standard)ISO 6892-1, ISO 4990, ISO 13520, ISO 11970, ISO 6892-2, ISO 148-1, ISO 4885:2017
Informative References(Provided for Information)ASTM A217, EN 10027-1, EN 10027-2, EN 10213
International RelationshipsISO 4991:2015
Draft Superseded By13/30252103 DC
DescriptorsPressure vessels, Strength of materials, Mechanical testing, Physical properties of materials, Ferritic steels, Pressure equipment, Inspection, Cast steels, Heat treatment, Welding, Mechanical properties of materials, Martensitic steels, Castings, Steels, Chemical composition, Austenitic steels
Title in FrenchPièces moulées en acier pour service sous pression
ISBN978 0 580 76494 3
File Size1.11 MB

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