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CastingsAustenitic steel castingsTG-MG-041 · Rev. 0 · October 2026

ASTM A351 CF8M — Chemical Composition & Mechanical Properties

ASTM A351 CF8M is an ASTM specification for austenitic steel castings (UNS J92900). This sheet summarises its chemical composition limits and minimum mechanical properties. Typical use: cast 316-type valve bodies & fittings.

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Chemical composition of ASTM A351 CF8M (weight %)

C0.08 max
Mn1.50 max
P max0.040
S max0.040
Si1.50 max
Cr18.0–21.0
Ni9.0–12.0
Mo2.0–3.0

Mechanical properties

Tensile strength, min485 MPa
Yield strength, min205 MPa
Elongation, min30 %
HardnessNot specified

Heat treatment

Solution annealed at 1040 °C min, quench

Typical service

Cast 316-type valve bodies & fittings

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.

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FAQ

ASTM A351 CF8M: common questions

What is the minimum yield strength of ASTM A351 CF8M?

205 MPa, with a minimum tensile strength of 485 MPa.

What is the carbon content of ASTM A351 CF8M?

0.08 max %.

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