A-286 stainless steel (UNS S66286) is a precipitation hardening alloy that combines high strength and good corrosion resistance at temperatures up to 1300f (704c). The super alloy a286 is an iron-based high temperature, high strength alloy with machinability is similar in behavior to the stainless steel 300 series. Super alloy a-286 is suitable for both heavy (1850 – 2200°F) and light forgings (1600 – 1850°F). Shapes of a286 forgings include flat, round and square bars, rolled rings, disks, hollows and more. Contact Anderson Shumaker today to speak to an alloy a286 stainless steel specialist.
Applications: Aircraft engines, power generation, turbine blading, afterburner parts and other environments in oxidizing environments.
Heat Treatment: Solution heat treatment, two methods are suggested.
Heat to 1800f (982c) and hold at heat for one hour then rapid cool.
Second option is heat to 1650f (899c) hold for 2 hours then rapid cool.
The first heat treat is better for stress rupture strength after aging while the second option results in higher hardness and better ductility.
Aging: typical aging for A-286 steel/UNS S66286 is heat to 1300/1400f (704/760c) hold 12 to 16 hours at heat then air cool to approximate 300 BHN.