Norms
DIN2609Steel butt-welding pipe fittings; technical delivery conditions
EN 10253-1Butt-welding pipe fittings – Part 1: Wrought carbon steel for general use and
without specific inspection requirements
EN 10253-2Butt-welding pipe fittings – Part 2: Non alloy and ferritic alloy steels with
specific inspection requirements
EN 10253-3Butt-welding pipe fittings – Part 3: Wrought austenitic and austenitic-ferritic
(duplex) stainless steels without specific inspection requirements
EN 10253-4Butt-welding pipe fittings – Part 4: Wrought austenitic and austenitic-ferritic
(duplex) stainless steels with specific inspection requirements
DIN2605Elbows
DIN2615Tees
DIN2616Reducers
DIN2617Caps
ASME/ANSI B16.9Factory-made wrought steel buttwelding fittings
B16.11Forged fittings, socket-welding and threaded as per ASTM
B16.25Buttwelding ends

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