UNS S66286 (GB GH2132 Incoloy A-286)

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UNS S66286 (GB GH2132 Incoloy A-286)

Product Description

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
  • Chemical analysis

    Cr Ni Mo Co Va Al Ti B C Fe Mn Si P S
    Min 13.5 24 1 – 0.1 – 1.9 0.003 – – – – – –
    Max 16 27 1.5 1 0.5 0.35 2.35 0.01 0.08 Balance 2

    Key Properties

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

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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!

Mechanical & Physical Properties

Mechanical & Physical Properties 21°C 93°C 204°C 427°C 537.8°C 649°C 760°C
Coefficient of Thermal Expansion µm/m⁰C – 16.6 – 17.3 17.6 17.8 18.5
– – – – 1.65 1.52 1.59
999.7 – 986 951.5 903.2 710.2 441.3
655 – 641.2 641.2 599.8 606.7 427.5
24 – 21 18 18 13 18
– 11.9 – 14.6 19.3 21 –

Typical Stress Rupture Strength 982.22/718.33°C

Temperature, °C 538°C 593°C 649°C
100 hours, ksi 99 81 61
1,000 hours, ksi 88 71 46

Applications of A286

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

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