12Cr-9Ni austenitic stainless steel is a chromium-nickel ferritic-austenitic variant engineered for enhanced strength and corrosion resistance through molybdenum and titanium additions. It bridges standard austenitic stainless grades (like 304/316) and duplex stainless steels, offering improved mechanical performance while maintaining workability. Select this material when you need better strength-to-weight performance than commodity austenitic grades in corrosive environments, particularly where chloride pitting resistance and thermal fatigue matter—such as chemical processing equipment, high-pressure piping, or heat exchanger tubing in aggressive media.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 18.00 | % | Measured | ||
Ultimate Tensile Strength(σUTS) | 1.213 | GPa | Measured | ||
Yield Strength (0.2% offset)(σy) | 1.172 | GPa | Measured |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data