Norms

 Norms
 DIN2609  Steel butt-welding pipe fittings; technical delivery conditions

 EN 10253-1  Butt-welding pipe fittings – Part 1: Wrought carbon steel for general use and
without specific inspection requirements

 EN 10253-2  Butt-welding pipe fittings – Part 2: Non alloy and ferritic alloy steels with
specific inspection requirements

 EN 10253-3  Butt-welding pipe fittings – Part 3: Wrought austenitic and austenitic-ferritic
(duplex) stainless steels without specific inspection requirements

 EN 10253-4  Butt-welding pipe fittings – Part 4: Wrought austenitic and austenitic-ferritic
(duplex) stainless steels with specific inspection requirements

 DIN2605  Elbows

 DIN2615  Tees

 DIN2616  Reducers

 DIN2617  Caps

 ASME/ANSI B16.9  Factory-made wrought steel buttwelding fittings

 B16.11  Forged fittings, socket-welding and threaded as per ASTM

 B16.25  Buttwelding ends

Standards and technical documents are subject to continuous development. Therefore, in individual cases our list may not correspond to the latest revision.