Alloy A286 (AMS 5731/ AMS 5732 / AMS 5737 / AMS 5525)

Technical Data Sheet

A286 is an iron-nickel-chromium alloy with additions of molybdenum and titanium. A 286 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. Due to it's high strength and excellent fabrication characteristics A286 is used in various components of aircraft and industrial gas turbines. A286 is also widely used in the offshore oil and gas industry where the components are subject to high levels of heat and stress.

Alloy 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. If you require further information regarding A286 contact Sales.

A286 Solution Treated

A286 Solution Treated is covered by specification AMS 5731 (AMS 5732 Capable) and BS HR52

Solution Heat Treatment: 1800ºF ± 25 (982 ± 14ºC) 1 hour, water/oil quench (AMS)

Hardness: ≥ 217HB or 220 HB (BS), ≥201HB (AMS)

A286 Solution Treated and Aged (1800ºF)

A286 Solution Treated and Aged is covered by specifications AMS 5732, BS HR51, ASTM A638 660 Type 2, ASTM A453 660 Class B

Solution Heat Treatment:

980ºC ± 10 for > 1 hour, followed by air cool (BS)

1800ºF ± 25 (982 ± 14ºC) 1 hour, water/oil quench (AMS)

Precipitation Heat Treatment:

720ºC ± 10 > 16 hours, followed by air cool (BS)

1300-1400 ºF (704-760ºC) hold not less 16 hours, air cool (AMS)

Hardness:

248 - 341 HB or 260 - 360 HV (BS)

248-341 HB (AMS)

Typical Mechanical Properties

A286 Solution Treated and Aged (1650ºF)

A286 Solution Treated and Aged is covered by specifications AMS 5737, ASTM A638 660 Type 1, ASTM A453 660 Class A and EN-2303 (under 4" Bar)

Solution Heat Treatment:

1650ºF ± 25 (899 ± 14ºC) 1 hour, water/oil quench (AMS)

Precipitation Heat Treatment

1300-1400 ºF (704-760ºC) hold not less 16 hours, air cool (AMS)

Hardness

277-363 HB (AMS)

Typical Mechanical Properties

A286 Other

AMS 5853 - 15% cold reduced (160 ksi/ 1103 Mpa tensile strength)

AMS 5726 - 40-50% cold reduced (200 ksi/ 1379 Mpa tensile strength)

Availability

Alloy A 286 is available in Sheet, Strip, Plate, Round Bar, Flat Bar, Square Bar , Hexagon Bar, Forging stock, Wire and Welding Wire. View Stock List, Plate Stock List or contact Sales for further availability.

Specifications

AMS 5525 Sheet / Stirp / Plate

AMS 5723 (cancelled)

AMS 5726 Bar Work Str 200ksi min

AMS 5731 Bar 1800°F Sol Trtd

AMS 5732 Bar 1800°F Sol Trtd /Aged

AMS 5734 Bar 1650°F Sol Trtd

AMS 5737 Bar 1650°F Sol Trtd /Aged

AMS 5853 Bar Cold Red 160ksi min

AMS 5858 Sheet / Strip (welding gr)

AMS 5895 Bar

ASTM A638 660 Type 1

ASTM A638 660 Type 2

ASTM A453 660 Class A

ASTM A453 660 Class B

BS HR51 Bar 1800°F Sol Trtd /Aged

BS HR52 Bar 1800°F Sol Trtd

BS HR650

AECMA PrEN 2171

AECMA PrEN 2119

AECMA PrEN 2172

AECMA PrEN 2173

AECMA PrEN 2303

AECMA PrEN 2304

AECMA PrEN 2398

AECMA PrEN 2399

AECMA PrEN 3510

AECMA PrEN 2175

AECMA PrEN 2417

ws 1.4980

UNS S66286