API 650 Welded oil storage tanks
CurrentLatest edition found. Still confirm amendments with the publisher.
- Edition
- 14th ed., Aug 2025
- Publisher
- API
- Part family
- Pressure vessels & piping codes
- Reviewed
- 22 October 2026 · source checked
Is API 650 still current?
Yes. 14th ed., Aug 2025 is the latest edition MechAtlas found (MechAtlas review: 22 October 2026). Check the publisher for amendments before you specify it.
What it covers
Welded oil storage tanks
Equivalent and related standards
| Standard | Relationship | Note |
|---|---|---|
| EN 14015 | Similar purpose — not interchangeable without an engineering check |
“Similar” never means interchangeable without an engineering check.
Official source
MechAtlas does not reproduce standards. Check the official edition at the publisher's page for API 650 or the API store.
Open in MechAtlasCheck a drawing callout
Other pressure vessels & piping codes standards
- API 653 / API 620 Current
Tank inspection & repair / low-pressure tanks - ASME B31.1 Current
Power piping - ASME B31.3 Current
Process piping - ASME BPVC Current
Boilers, materials, pressure vessels, overpressure protection - EJMA / EN 14917 Current
Expansion joints - EN 13445 parts 1–5 Current
Unfired pressure vessels - EN 13480-1/-2/-4 Current
Metallic industrial piping - India Boilers Act Current
Statutory boiler regulation - TEMA / API 660 / API 661 Current
Heat exchangers (shell-and-tube, air-cooled)