On this page 5 sections
What ASME B16.9 covers
Standard at a glance
- Standard
- ASME B16.9
- Issued by
- ASME
- Product form
- Fittings
- Grades on site
- —
Dimensions and tolerances of butt-weld elbows, tees, reducers, caps, crosses and stub ends from NPS ½".
Key requirements
- Centre-to-end dimensions
- Tolerances
- Marking
- Design proof testing basis
Summary for procurement guidance. Refer to the current edition of the standard for full requirements.
Ordering to ASME B16.9
- State "ASME B16.9" and the edition if your project requires it
- Grade / designation and product dimensions
- Supplementary requirements (tests, heat treatment, certification)
- Certificate type: EN 10204 3.1 or 3.2
Frequently asked questions
What does ASME B16.9 cover?
Dimensions and tolerances of butt-weld elbows, tees, reducers, caps, crosses and stub ends from NPS ½".
Which grades are covered by ASME B16.9?
It is a dimensional or documentation standard that applies across grades.
Do you supply material certified to ASME B16.9?
Yes. Material is supplied to ASME B16.9 with EN 10204 3.1 certificates (3.2 on request), where the mill certifies to it.