ASTM B564
Nickel-alloy forgings
Covers nickel-alloy forgings, including flanges and forged fittings in alloys 600, 625, 800, 825, C276, C22 and Monel 400.
- Flanges & forgings
- ASME SB-564
- 7 grades in stock range
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What to know before ordering to ASTM B564
The points that decide whether material to ASTM B564 is accepted at inspection.
- Order by UNS number: B564 UNS N08825 for Alloy 825 flanges.
- Forgings are supplied annealed.
- Flange dimensions still come from ASME B16.5 or B16.47.
Grades and products we supply to ASTM B564
| Grade | Product | Designation on the certificate |
|---|---|---|
| Inconel 825 | Fittings · Flanges | ASTM B564 |
| Inconel 600 | Fittings · Flanges | ASTM B564 |
| Inconel 625 | Fittings · Flanges | ASTM B564 |
| Incoloy 800 / 800H / 800HT | Fittings · Flanges | ASTM B564 |
| Hastelloy C276 | Fittings · Flanges | ASTM B462 / B564 |
| Hastelloy C22 | Fittings · Flanges | ASTM B462 / B564 |
| Monel 400 | Fittings · Flanges | ASTM B564 |
How ASTM B564 fits into an order
A purchase order line is only complete when it names the material standard, the dimensional standard and the inspection document. Miss one and the mill, the inspector and the buyer can each read the order differently.
ASTM B564 — questions buyers ask
What does ASTM B564 cover?
Covers nickel-alloy forgings, including flanges and forged fittings in alloys 600, 625, 800, 825, C276, C22 and Monel 400.
Which grades do you supply to ASTM B564?
Inconel 825, Inconel 600, Inconel 625, Incoloy 800 / 800H / 800HT, Hastelloy C276, Hastelloy C22, Monel 400 — see the table on this page for the exact product and designation.
What is the difference between ASTM B564 and ASME SB-564?
ASME SB-564 is the ASME Boiler and Pressure Vessel Code (Section II) adoption of ASTM B564. The technical requirements are usually identical to a specific ASTM edition; pressure-equipment codes call for the ASME designation, and most mill certificates show both.
Do you supply certificates to this standard?
Yes. Material is supplied with mill test certificates to EN 10204 3.1 showing the standard, grade and heat number; 3.2 with third-party inspection on request.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026