On this page 6 sections
What ASTM B649 covers
Standard at a glance
- Standard
- ASTM B649 / ASME SB649
- Issued by
- ASTM
- Product form
- Bars
- Grades on site
- 1
Covers bar and wire in the high-alloy austenitic grades, including SS 904L (UNS N08904), for fasteners, shafts and machined components in sulphuric-acid and seawater service.
Key requirements
- Annealed condition
- Tension test per lot
- Dimensional tolerances by shape
- Certification of heat chemistry
Summary for procurement guidance. Refer to the current edition of the standard for full requirements.
Grades supplied to ASTM B649
Ordering to ASTM B649
- State "ASTM B649" 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 ASTM B649 cover?
Covers bar and wire in the high-alloy austenitic grades, including SS 904L (UNS N08904), for fasteners, shafts and machined components in sulphuric-acid and seawater service.
Which grades are covered by ASTM B649?
On this site: SS 904L.
Do you supply material certified to ASTM B649?
Yes. Material is supplied to ASTM B649 with EN 10204 3.1 certificates (3.2 on request), where the mill certifies to it.
Is ASME SAB649 the same as ASTM B649?
ASME adopts many ASTM material specifications into Section II with an "S" prefix (for example SA-649). The adopted text is identical or includes stated modifications, and dual-certified material meets both.