An iron-nickel-chromium based superalloy, A286 has superior strength up to 538°C and excellent oxidation resistance up to 816°C.

If you need a stainless steel which offers superior strength combined with excellent oxidation resistance at elevated temperatures, then look no further than NeoNickel A286 stainless steel.

  • UNS Number: S66286
  • Werkstoff Number: 1.4980, 1.4943, 1.4944
  • ASTM: A453, A638, 5731, 5734, 5737
  • AMS: 5525, 5732, 5804, 5526
  • Other: BS HR100, BS HR51, M6RR6531, 6532

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Chemical analysis



  • Jet engine components
  • High temperature fasteners, springs
  • Non-magnetic cryogenic equipment

About A286

A286 alloy is an age-hardenable iron-nickel-chromium superalloy for applications requiring long-term high strength from -195°C-538°C. If short-term high strength properties are acceptable, the alloy can be used between 704-816°C. Oxidation resistance is high for continuous service to 816°C and intermittent to 982°C.

Aqueous corrosion resistance of A286 is comparable to 316/316L stainless grade.

Heat treatment according to AMS 5525 requires a solution anneal at 982°C air cool, age at 718°C for 16 hours and then air cool.

For more information on A286 Stainless Steel contact us, or fill in our online quote form and we’ll get right back to you!

  • Density: 7.94 g/cm³
  • Melting range: 1287.8 -1348.9 °C

Mechanical & Physical Properties

Mechanical & Physical Properties21°C93°C204°C427°C537.8°C649°C760°C
Coefficient of Thermal Expansion µm/m⁰C-16.6-17.317.617.818.5

Typical Stress Rupture Strength 982.22/718.33°C

Temperature, °C538°C593°C649°C
100 hours, ksi998161
1,000 hours, ksi887146
Proud members of the British Valve & Actuator AssociationProud members of the British Valve & Actuator Association