Nickel - A-286 Bar (solution treated)
Spec: AMS 5731
A-286 Bar (solution treated) AMS 5731
(formerly AMS 5736)
PDF: A-286 Bar (Solution Treated) Spec PDF
- Iron 50%
- Nickel 25%
- Chromium 15%
- Titanium 2%
- Molybdenum 1.3%
- Aluminum 0.2%
- Vanadium 0.3%
A-286 is an iron-base superalloy 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. A-286 is used in many moderate temperature and stress applications in jet engines, such as low pressure turbines, compressors, shafts and afterburner parts.
Non-magnetic. An austenitic alloy in an annealed condition, it has moderate strength and rupture characteristics up to 1300ºF (704°C). A-286 has good oxidation resistance for continuous service up to 1500°F (816°C) and intermittent service up to 1800°F (982°C). The 1800ºF (982°C) solution treatment is designed to maximize creep and stress rupture properties, with some reduction in strength. The strength of A-286 is substantially increased by aging the solution treated material at 1325°F (718°C). A-286 can attain high strength levels when aged after cold work, and has wide application as high temperature fasteners and springs.
Hardness of Aerodyne stock is typically 180 BHN. Supplied in the solution heat treated condition - 1800ºF (982°C). To attain design strength and rupture properties, an aging treatment of 1325ºF (718°C) for 16 hours is required. For an even higher aged strength, solution treated material may be cold worked prior to the aging treatment.
35% of B-1112
Typical Stock Removal Rate:
58 surface feet/minute with high speed tools. 150 surface feet/minute with carbide.
The same techniques and equipment are used for machining A-286 as for austenitic stainless steels. In the solution treated condition, it is one of the easiest high temperature alloys to cold head.
0.286 lbs/in3, 7.92 g/cm3
Standard Inventory Specifications
- AMS 5731 (formerly AMS 5736)
- Line marked over 0.5 inches in diameter
- Predominantly produced by VIM-VAR or VIM-ESR melt method. Hot rolled, 1800ºF (982°C) solution heat treated, then centerless ground.
- Lengths: 10-12 feet