ASTM A995 Grade 5A (CE3MN) — Chemical Composition & Mechanical Properties
ASTM A995 Grade 5A (CE3MN) is a super duplex stainless steel grade for super duplex steel castings (UNS J93404, EN / W.Nr 1.4469). It is also known as Cast 2507. This sheet summarises its chemical composition limits, minimum mechanical properties, heat treatment and typical service. Teshi Group manufactures valves with bodies in this grade.
ASTM A995 Grade 5A (CE3MN) at a glance
| Specification | ASTM A995 Grade 5A (CE3MN) |
|---|---|
| Material family | Super duplex stainless steel |
| Product form | Super duplex steel castings |
| UNS number | J93404 |
| EN / W.Nr equivalent | 1.4469 |
| Also known as | Cast 2507 |
| PREN (min values) | 38.8 |
| Document | TG-MG-083 · Rev. 1 · October 2026 |
Typical service
Cast super duplex valve and pump bodies
Heat treatment
Solution treated 1120 °C min, water quench
Chemical composition of ASTM A995 Grade 5A (CE3MN) (weight %)
Single values are maximums unless shown as a range or “min”.
Mechanical properties
| Tensile strength, min | 690 MPa |
|---|---|
| Yield strength (0.2 % offset), min | 515 MPa |
| Elongation, min | 18 % |
| Hardness | Not specified |
About super duplex stainless steel
Super duplex stainless steels raise chromium to 25 %, molybdenum to 3.5–4 % and nitrogen to about 0.25 %, giving a PREN above 40. That makes them resistant to pitting and crevice corrosion in warm seawater, while keeping a minimum yield of 550 MPa.
Reference information compiled from the published standard for convenience. It does not replace the current edition of the governing standard, which takes precedence. Verify critical dimensions and properties before design, purchase or fabrication. Teshi Engineers & Sales Promoters (P) Ltd accepts no liability for errors or omissions.
International equivalents of ASTM A995 Grade 5A (CE3MN)
All equivalents| Standard system | Nearest equivalent grade |
|---|---|
| USA — ASTM / ASME | ASTM A995 Grade 5A (CE3MN) · ASME SA-995 Grade 5A (CE3MN) |
| USA — UNS | J93404 |
| Europe — EN designation | GX2CrNiMoN26-7-4 (EN 10213) |
| Europe — W.Nr | 1.4469 |
| China — GB / NB | ZG03Cr26Ni7Mo4N |
Equivalents are the nearest commonly cited grades. Chemistry, mechanical properties and testing differ between standards — compare them before substituting one for another.
Standards for ASTM A995 Grade 5A (CE3MN)
All material standardsFAQ
ASTM A995 Grade 5A (CE3MN): common questions
What is the minimum yield strength of ASTM A995 Grade 5A (CE3MN)?
515 MPa, with a minimum tensile strength of 690 MPa.
What is the carbon content of ASTM A995 Grade 5A (CE3MN)?
0.03 max %.
What is the PREN of ASTM A995 Grade 5A (CE3MN)?
About 39, calculated as Cr + 3.3Mo + 16N using the specification minimum values. Typical heats are a little higher.
What is the UNS number and EN equivalent of ASTM A995 Grade 5A (CE3MN)?
UNS J93404; the nearest European designation is W.Nr 1.4469. Equivalents are close but not identical — check the specification if substituting.
How is ASTM A995 Grade 5A (CE3MN) heat treated?
Solution treated 1120 °C min, water quench.
What is the Chinese (GB) equivalent of ASTM A995 Grade 5A (CE3MN)?
The nearest Chinese equivalent is ZG03Cr26Ni7Mo4N. Equivalents are close but not identical — compare chemistry and properties before substituting.
Does Teshi Group supply ASTM A995 Grade 5A (CE3MN)?
Teshi Group manufactures valves with bodies in this grade. Send your size, rating and quantity to info@teshigroup.com for a quotation with EN 10204 3.1 certificates.
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