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ISO 5251:1981

Stainless steel butt-welding fittings ISO 5251:1981

Publication date:   Apr 1, 1981

General information

90.93   Standard confirmed   Apr 24, 2026

ISO

ISO/TC 5/SC 5 Threaded fittings, solder fittings, welding fittings, pipe threads, thread gauges

International Standard

23.040.40   Metal fittings

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




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