ASME B16.9 Wrought butt-welding fittings
CurrentLatest edition found. Still confirm amendments with the publisher.
- Edition
- ASME B16.9 2024
- Publisher
- ASME
- Part family
- Pipes, flanges & gaskets
- Reviewed
- 23 October 2026 · source checked
Is ASME B16.9 still current?
Yes. ASME B16.9 2024 is the latest edition MechAtlas found (MechAtlas review: 23 October 2026). Check the publisher for amendments before you specify it.
What it covers
Factory-made wrought butt-welding fittings.
- Material
- Steel
- Typical application
- Process piping
- What you specify
- NPS; wall; elbow radius; end preparation
- Watch out
- Verify matching pipe material and wall requirements.
Parts that use ASME B16.9
- Butt-weld fitting (USA (ASME / ASTM), main)
Elbows, tees, reducers and caps welded end-to-end to pipe to change direction, branch or size.
90 deg LR elbow NPS 6 Sch 40, ASME B16.9, ASTM A234 WPB
Grades: Wall to match pipe schedule
NPS 1/2 to NPS 48; dimensions and tolerances.
Official source
MechAtlas does not reproduce standards. Check the official edition at the publisher's page for ASME B16.9 or the ASME store.
Open in MechAtlasCheck a drawing callout
Other pipes, flanges & gaskets standards
- DIN 2633 Replaced
Weld-neck flanges PN 16 (old DIN) - IS 13159-1 Withdrawn
Pipe flanges, dimensions - EN 10217-1 Changing
Welded pressure tubes, room temperature - EN 1092-1 Changing
Steel flanges, PN designated - API 5L Current
Line pipe - ASME B16.20 / B16.21 Current
Metallic / non-metallic gaskets - ASME B16.47 Current
Large flanges NPS 26–60, Series A and B (do not mate) - ASME B16.5 Current
Pipe flanges & flanged fittings - ASME B16.9 / B16.11 Current
Butt-weld / forged socket-weld & threaded fittings - ASME B36.10 Current
Welded & seamless wrought steel pipe - ASME B36.19 Current
Stainless steel pipe dimensions - ASTM A106 / A53 / A312 Current
Seamless CS / general / stainless pipe