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ISO 5251:1981

Stainless steel butt-welding fittings

Apr 1, 1981

General information

90.93     Apr 24, 2026

ISO

ISO/TC 5/SC 5

International Standard

23.040.40  

French   English  

Buying

Published

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Scope

Specifies rhe dimensions, tolerances and generally used grades of stainless steel for bends /type 3D (90 and 180 ) with and without straight ends and type 5D (90 )/, concentric and eccentric reducers, tees, caps and stub ends with quality requirements as used for piping work.

Life cycle

NOW

PUBLISHED
ISO 5251:1981
90.93 Standard confirmed
Apr 24, 2026