A 286 Alloys round Bar

Alloy A286 features high strength, oxidation resistance, and corrosion resistance at continuously high temperatures. A286 alloys are heat treatable to achieve a wide variety of grain structures and tensile properties. This grade of A286 is annealed and aged. Applications for Alloy A286 include jet engine components, superchargers, turbine wheels and blades, fasteners, springs, and general high-stress components in petrochemical, aerospace, and oil patch industries.

Details

A286 is an iron-nickel-chromium alloy with additions of molybdenum and titanium. A286 is one of the most popular high-temperature alloys. As one of the austenitic alloys, it maintains good strength and oxidation resistance at temperatures up to 1300ºF (700ºC).

It also contains niobium for stabilization against sensitization and resultant intergranular corrosion. A286 has excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides and sulphuric, phosphoric, and nitric acids. Used for tanks, piping, heat exchangers, pumps, valves, and other process equipment.

Due to its high strength and excellent fabrication characteristics, A286 is used in various components of aircraft and industrial gas turbines. The alloy is also widely used in the offshore oil and gas industry where the components are subject to high levels of heat and stress.

Cold forming can also be conducted in the solution heat-treated condition to aid the properties after age hardening.

A286 bar can be solution treated at the temperatures detailed below, rapid cooled and then age hardened at 1325ºF (720ºC) for 16 hours and air cooling. The 1800ºF (980ºC) solution treatment produces the highest creep-rupture strength in age-hardened material whereas the 1650ºF (900ºC) treatment results in improved ductility and room temperature strength.

5737 is Solution Heat treated (annealed) at 1650 deg F +/- 25 degrees, then precipitation Heat treated (aged) between 1300-1400 degrees F for at least 16 hours, then air-cooled, achieve a min tensile of 140 KSI, min yield of 95 KSI, Min elongation of 12% and a min Reduction of area of 15%.

5732 is Solution Heat treated (annealed) at 1800 deg F +/- 25 degrees, then precipitation Heat treated (aged) between 1300-1400 degrees F for at least 16 hours, then air-cooled to achieve a min tensile of 130 KSI, min yield of 85 KSI, Min elongation of 15% and a min Reduction of area of 20%.