On this page 6 sections
What ASTM B637 covers
Standard at a glance
- Standard
- ASTM B637 / ASME SB637
- Issued by
- ASTM
- Product form
- Bars
- Grades on site
- 1
Covers age-hardenable nickel alloys, including alloy 718 (UNS N07718), as bar, forgings and forging stock for turbine, valve and high-strength fastener applications.
Key requirements
- Solution treated, or solution treated and precipitation hardened, as ordered
- Tension, hardness and, where required, stress-rupture tests
- Grain size requirements
- Certification of heat treatment cycle
Summary for procurement guidance. Refer to the current edition of the standard for full requirements.
Grades supplied to ASTM B637
Ordering to ASTM B637
- State "ASTM B637" 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 B637 cover?
Covers age-hardenable nickel alloys, including alloy 718 (UNS N07718), as bar, forgings and forging stock for turbine, valve and high-strength fastener applications.
Which grades are covered by ASTM B637?
On this site: Inconel 718.
Do you supply material certified to ASTM B637?
Yes. Material is supplied to ASTM B637 with EN 10204 3.1 certificates (3.2 on request), where the mill certifies to it.
Is ASME SAB637 the same as ASTM B637?
ASME adopts many ASTM material specifications into Section II with an "S" prefix (for example SA-637). The adopted text is identical or includes stated modifications, and dual-certified material meets both.