ASTM A815
Wrought ferritic, ferritic/austenitic (duplex) and martensitic stainless fittings
Covers wrought ferritic, ferritic/austenitic (duplex) and martensitic stainless steel fittings, including WPS31803 / WPS32205 (2205) and WPS32750 (2507).
- Pipe fittings
- ASME SA-815
- 3 grades in stock range
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What to know before ordering to ASTM A815
The points that decide whether material to ASTM A815 is accepted at inspection.
- Duplex fittings must be solution-annealed and quenched — check the certificate.
- Class WP fittings follow ASME B16.9; Class CR follow MSS SP-43.
- Matching pipe is ASTM A790.
Grades and products we supply to ASTM A815
| Grade | Product | Designation on the certificate |
|---|---|---|
| Duplex 2205 | Fittings | ASTM A815 WPS31803 / WPS32205 |
| Super Duplex 2507 | Fittings | ASTM A815 WPS32750 |
| Super Duplex S32760 | Fittings | ASTM A815 WPS32760 |
How ASTM A815 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 A815 — questions buyers ask
What does ASTM A815 cover?
Covers wrought ferritic, ferritic/austenitic (duplex) and martensitic stainless steel fittings, including WPS31803 / WPS32205 (2205) and WPS32750 (2507).
Which grades do you supply to ASTM A815?
Duplex 2205, Super Duplex 2507, Super Duplex S32760 — see the table on this page for the exact product and designation.
What is the difference between ASTM A815 and ASME SA-815?
ASME SA-815 is the ASME Boiler and Pressure Vessel Code (Section II) adoption of ASTM A815. 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