On this page 6 sections
What ASME B31.8 covers
Standard at a glance
- Standard
- ASME B31.8
- Issued by
- ASME
- Product form
- Pipes
- Grades on site
- 5
The design code for gas pipelines, compressor stations and distribution systems. Design factors depend on location class, and line pipe is usually API 5L.
Key requirements
- Design factor by location class
- Line pipe usually to API 5L
- Welding and NDT requirements
- Pressure testing before service
Summary for procurement guidance. Refer to the current edition of the standard for full requirements.
Grades supplied to ASME B31.8
Ordering to ASME B31.8
- State "ASME B31.8" 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 B31.8 cover?
The design code for gas pipelines, compressor stations and distribution systems. Design factors depend on location class, and line pipe is usually API 5L.
Which grades are covered by ASME B31.8?
On this site: API 5L Grade B, API 5L X52, API 5L X60, API 5L X65, API 5L X70.
Do you supply material certified to ASME B31.8?
Yes. Material is supplied to ASME B31.8 with EN 10204 3.1 certificates (3.2 on request), where the mill certifies to it.