ASTM A351 CF8 — Chemical Composition & Mechanical Properties
ASTM A351 CF8 is a austenitic stainless steel grade for austenitic steel castings (UNS J92600, EN / W.Nr 1.4308). It is also known as Cast 304. 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 A351 CF8 at a glance
| Specification | ASTM A351 CF8 |
|---|---|
| Material family | Austenitic stainless steel |
| Product form | Austenitic steel castings |
| UNS number | J92600 |
| EN / W.Nr equivalent | 1.4308 |
| Also known as | Cast 304 |
| PREN (min values) | 18.0 |
| Document | TG-MG-065 · Rev. 1 · October 2026 |
Typical service
Cast equivalent of 304 — valve bodies, pump casings
Heat treatment
Solution treated 1040 °C min, quenched
Chemical composition of ASTM A351 CF8 (weight %)
Single values are maximums unless shown as a range or “min”.
Mechanical properties
| Tensile strength, min | 485 MPa |
|---|---|
| Yield strength (0.2 % offset), min | 205 MPa |
| Elongation, min | 35 % |
| Hardness | Not specified |
About austenitic stainless steel
Austenitic stainless steels are iron–chromium–nickel alloys with 16–26 % chromium and 8–22 % nickel. Nickel keeps the structure austenitic (face-centred cubic), which makes these steels non-magnetic when annealed, very tough down to cryogenic temperatures, and easy to form and weld.
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 A351 CF8
All equivalents| Standard system | Nearest equivalent grade |
|---|---|
| USA — ASTM / ASME | ASTM A351 CF8 · ASME SA-351 CF8 |
| USA — UNS | J92600 |
| Europe — EN designation | GX5CrNi19-10 (EN 10213) |
| Europe — W.Nr | 1.4308 |
| Japan — JIS | SCS13A (JIS G5121) |
| China — GB / NB | CF8 / ZG08Cr18Ni9 (GB/T 12230) |
| China — old GB designation | ZG0Cr18Ni9 |
| UK — BS (withdrawn) | BS 3100 304C15 |
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 A351 CF8
All material standardsFAQ
ASTM A351 CF8: common questions
What is the minimum yield strength of ASTM A351 CF8?
205 MPa, with a minimum tensile strength of 485 MPa.
What is the carbon content of ASTM A351 CF8?
0.08 max %.
What is the PREN of ASTM A351 CF8?
About 18, 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 A351 CF8?
UNS J92600; the nearest European designation is W.Nr 1.4308. Equivalents are close but not identical — check the specification if substituting.
How is ASTM A351 CF8 heat treated?
Solution treated 1040 °C min, quenched.
What is the Chinese (GB) equivalent of ASTM A351 CF8?
The nearest Chinese equivalent is CF8 / ZG08Cr18Ni9 (GB/T 12230), formerly ZG0Cr18Ni9. Equivalents are close but not identical — compare chemistry and properties before substituting.
What is the JIS equivalent of ASTM A351 CF8?
The nearest Japanese (JIS) equivalent is SCS13A (JIS G5121).
Does Teshi Group supply ASTM A351 CF8?
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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