Alloy A286, Incoloy® A-286, Alloy 660, SUH 660, S66286, NAS 660
What is alloy A286?
Incoloy Alloy® A-286 (sometimes referred Alloy 660 is a precipitation hardening austenitic stainless) is a nickel and iron-based, austenitic superalloy that is useful for applications requiring high strength and corrosion resistance up to 1300˚F (704˚C), and for lower stress applications at higher temperatures. The mechanical properties of this alloy are developed by suitable solution annealing and precipitation hardening treatments.
This alloy has excellent high temperature oxidation resistance and is designed to maximize creep and stress rupture properties, with some reduction in strength. A-286 material can attain high strength levels when aged after cold work, and has wide applications in high temperature fasteners and springs.
ALLOY A286 Chemical Composition
- Ni 24-27%
- Cr 13.5-16%
- Ti 1.90-2.30%
- Fe balanced
- Al .35%
- V .10-.50
- Si 1% max
- C .8% max
Alloy 660 Mechanical Properties and Yield Strength
ALLOY A-286 alloy is formed most easily in the solution treated condition. Typical room temperature tensile properties of material solution treated at 1800°F (982°C) are shown below.
- Yield Strength: 40,000 psi (275 MPa)
- Ultimate Tensile Strength: 90,000 psi (620 MPa)
- Elongation: 40%
Incoloy Alloy A-286 Applications :
- Automotive engines and manifold components
- Offshore and oil and gas components
- Turbine wheels, blade, frames, and casings
- Jet engines, and afterburner parts and fasteners