Standard [PUBLISHED]

DIN EN 10253-4
Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements; German version EN 10253-4:2008

Title (German)

Formstücke zum Einschweißen - Teil 4: Austenitische und austenitisch-ferritische (Duplex-)Stähle mit besonderen Prüfanforderungen; Deutsche Fassung EN 10253-4:2008

Brief description

This draft European Standard specifies the technical delivery requirements for seamless and welded butt-welding fittings (elbows, concentric and eccentric reducers, equal and reducing tees, caps) made of austenitic and austenitic-ferritic (duplex) stainless steel in two test-categories which are intended for pressure purposes at room temperature, at low temperature or at elevated temperatures, and for the transmission and distribution of fluids and gases. It specifies: - type A: butt-welding fittings with reduced pressure factor; - type B: butt-welding fittings for use at full service pressure; the steel grades;- the mechanical properties;- the dimensions and tolerances;- the requirements for inspection and testing;- the inspection documents;- the marking;- the handling and packaging.

Issue date

2008-06

Developing committee

CEN/TC 459/SC 10 - Steel tubes, and iron and steel fittings

National mirror committee

NA 082-00-11 AA - Pipe fittings

areas / working committees

Infrastructure, Application and Further Training, Safety, Certification

topic / sub working committees

Transmission and distribution grids, Storage, Mobility and Safety

topics / working groups

Piping, Stationary and mobile pressure vessels, Rail vehicles and Explosion protection
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