Pipes, flanges & gaskets standards
Pipe, fittings, PN/Class flanges, gaskets. 59 standards from 10 publishers, ICS 23.040.
Replaced: use the replacement (1)
- DIN 2633 Replaced
Weld-neck flanges PN 16 (old DIN) · unconfirmed - legacy reference
Withdrawn (1)
- IS 13159-1 Withdrawn
Pipe flanges, dimensions · 1993, withdrawn, not superseded
Changing: revision in progress (2)
- EN 1092-1 Changing
Steel flanges, PN designated · EN 1092-1 2018 - EN 10217-1 Changing
Welded pressure tubes, room temperature · EN 10217-1:2019
Current (55)
- API 5L Current
Line pipe · 47th edition, 2026 - ASME B16.5 Current
Pipe flanges & flanged fittings · 2025 - ASME B16.9 Current
Wrought butt-welding fittings · ASME B16.9 2024 - ASME B16.9 / B16.11 Current
Butt-weld / forged socket-weld & threaded fittings · ASME B16.9 2024; ASME B16.11 2021 - ASME B16.20 / B16.21 Current
Metallic / non-metallic gaskets · ASME B16.20 2023; ASME B16.21 2021 - ASME B16.47 Current
Large flanges NPS 26–60, Series A and B (do not mate) · ASME B16.47 2025 - ASME B36.10 Current
Welded & seamless wrought steel pipe · 2022 - ASME B36.19 Current
Stainless steel pipe dimensions · 2022; 2023 errata - ASTM A53/A53M Current
Black and galvanized steel pipe, welded and seamless · A53/A53M-24 - ASTM A106 / A53 / A312 Current
Seamless CS / general / stainless pipe · A106/A106M-26; A53/A53M-24; A312/A312M-25 - ASTM A106/A106M Current
Seamless carbon steel pipe · A106/A106M-26 - ASTM A182/A182M Current
Forged alloy and stainless steel pipe flanges, fittings and valves · A182/A182M-26b - ASTM A234/A234M Current
Wrought carbon and alloy steel fittings · A234/A234M-26 - ASTM A312/A312M Current
Austenitic stainless steel pipe · A312/A312M-25 - ASTM A358/A358M Current
Electric-fusion-welded austenitic stainless pipe · A358/A358M-24a - ASTM A403/A403M Current
Wrought austenitic stainless steel fittings · A403/A403M-26b - AWWA C207 Current
Steel pipe flanges for waterworks · 2023 - EN 1514-1 Current
Non-metallic flat gaskets for PN flanges · EN 1514-1:2024 - EN 1514-2 Current
Spiral wound gaskets for PN steel flanges · EN 1514-2:2014+A1:2021 - EN 1514-4 Current
Metallic gaskets for PN steel flanges · EN 1514-4:1997 - EN 1591-1 / -4 Current
Flange joint calculation; bolting personnel competence · EN 1591-1 2024; EN 1591-4 2013 - EN 10216-2 Current
Seamless pressure tubes, elevated temperature · EN 10216-2:2024 - EN 10216-5 Current
Seamless stainless pressure tubes · EN 10216-5:2021 - EN 10217-2 Current
Welded pressure tubes, elevated temperature · EN 10217-2:2019 - EN 10217-7 Current
Welded stainless pressure tubes · EN 10217-7:2021 - EN 10220 Current
Seamless and welded steel tubes - dimensions and masses · EN 10220:2002 - EN 10241 Current
Steel threaded pipe fittings · EN 10241:2000 - EN 10253-1 Current
Butt-weld fittings - carbon steel, general use · EN 10253-1:2026 - EN 10253-2 Current
Butt-weld fittings - non-alloy and ferritic alloy, pressure · EN 10253-2:2021+A1:2025 - EN 10253-4 Current
Butt-weld fittings - austenitic and duplex stainless · EN 10253-4:2025 - EN 10255 Current
Steel tubes for welding and threading · EN 10255:2004+A1:2007 - EN 12560-1 Current
Non-metallic flat gaskets for Class flanges · EN 12560-1:2024 - EN 12560-2 Current
Spiral wound gaskets for Class flanges · EN 12560-2:2013 - IS 1239-1 Current
Steel tubes · IS 1239-1 2004 (Sixth Revision), 6 amendments - IS 1239-2 Current
Steel pipe fittings · IS 1239-2:2011 (reaffirmed 2021) - IS 2712 Current
Compressed fibre jointing for gaskets · IS 2712:2024 - IS 3589 Current
Steel pipes for water and sewage · IS 3589:2001 (7 amendments) - IS 6392 Current
Steel pipe flanges · IS 6392:2020 - IS 6913 Current
Stainless tubes for food, beverage, dairy and pharma · IS 6913:2023 - ISO 1127 Current
Stainless steel tubes - dimensions and tolerances · ISO 1127:1992 - ISO 4200 Current
Plain-end steel tubes - dimension and mass tables · ISO 4200:1991 - ISO 7005-1 Current
Steel pipe flanges for industrial and general service · ISO 7005-1:2011 - JIS B 2220 Current
Steel pipe flanges (Japan) · JIS B 2220:2012 (confirmed 2026) - JIS B 2311 Current
Steel butt-welding fittings for ordinary piping · JIS B 2311:2024 - JIS B 2312 Current
Steel butt-welding fittings for pressure piping · JIS B 2312:2024 - JIS B 2316 Current
Steel socket-welding pipe fittings · JIS B 2316:2017 - JIS B 2404 Current
Gasket dimensions for pipe flanges · JIS B 2404:2018 - JIS G 3448 Current
Light-gauge stainless pipe for ordinary piping · JIS G 3448:2022 - JIS G 3452 Current
Carbon steel pipe for ordinary piping (SGP) · JIS G 3452:2026 - JIS G 3454 Current
Carbon steel pipes for pressure service · 2026 - JIS G 3459 Current
Stainless steel pipe for piping · JIS G 3459:2021 - MSS SP-75 Current
High-strength wrought butt-welding fittings · MSS SP-75-2025 - MSS SP-79 Current
Socket-welding reducer inserts · MSS SP-79-2024 - MSS SP-83 Current
Class 3000 and 6000 pipe unions · MSS SP-83-2025 - MSS SP-97 Current
Integrally reinforced branch outlets · 2025