A286 Details 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%.
Mechanical Properties of A286
Tests on 7/8″(22.2mm) diameter bar stock solution treated to 1800°F (982°C), 1 hour, oil quenched and aged at 1325°F (719°C), for 16 hours and then air cooled.
|Ultimate Tensile Strength
|0.2% Yield Strength
|Elong in 2″
|Reduction of Area
Physical Properties of Aluminum Bronze A286
|Hot Working Range
Max Service Temp (Air)
|Mean Liner Expansion 0-200ºc
|Mean Liner Expansion 0-400 ºF
||0.00916 in/in/ ºF x10³
||0.101Btu/lb/ ºF @68ºF
| Solution Heat Treated
|Modulus of Elasticity 10³
While the data is believed to be accurate, Diversified Metals, Inc. makes no representation or warranty of any kind (expressed or implied) and assumes no responsibility with respect to the accuracy and values shown above; this information should only be used as a guide.