Alloy A286 (AMS 5731 / AMS 5732 / AMS 5737 / AMS 5525)
Due to its high strength and excellent fabrication characteristics, A286 is used in a variety of components for aircraft and industrial gas turbines. A286 is also widely used in the offshore oil and gas industry where components are subjected to high levels of heat and pressure.
Alloy A286 bars can be solution treated at the temperatures detailed below, rapidly cooled, then age hardened at 1325F (720C) for 16 hours, then air cooled. The 1800F (980C) solution treatment produces the highest creep rupture strength of the age hardened material, while the 1650F (900C) treatment increases ductility and room temperature strength.
If you require more information on A286, please contact GNEE steel.info@gneestainless.com
Solution Treated
A286 solution treated as specified in AMS 5731 (AMS 5732 Capable) and BS HR52
Solution Heat Treated: 1800F ± 25 (982 ± 14C) 1 hour, water/oil quench (AMS)
Hardness: ≥ 217HB or 220 HB BS), ≥201HB (AMS) A286 solution treated and aged (1800F)
A286 solution treated and aged as specified in AMS 5732, BS HR51, ASTM A638 660 Type 2, ASTM A453 660 Class B
Solution Heat Treated:
980C ± 10 > 1 hour, then air cool (BS)
1800F ± 25 (982 ± 14C) 1 hour, water/oil quench (AMS)
Precipitation Heat Treated:
720C ± 10 > 16 hours then air cool (BS)
1300-1400 F (704-760C) for not less than 16 hours, air cool (AMS)
Hardness:
248 - 341 HB or 260 - 360 HV (BS)
248-341 HB (AMS)
A286 Solution Treated and Aged (1650F)
A286 Solution Treated and Aged per AMS 5737, ASTM A638 660 Type 1, ASTM A453 660 Class A and EN-2303 (less than 4" Bar)
Solution Heat Treated:
1650F ± 25 (899 ± 14C) 1 hour, water/oil quench (AMS)
Precipitation Heat Treated
1300-1400 F (704-760C) hold not less than 16 hours, air cooled (AMS)
Hardness
277-363 HB (AMS)
AMS 5853 - 15% cold rolled (160 ksi/1103 Mpa tensile strength)
AMS 5726 - 40-50% cold rolled (200 ksi/1379 Mpa tensile strength)
