| 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.
