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Data Sheet:

 Alloy A 286 

Chemical Composition Limits (as per AMS 5731)
Weight % C Mn P S Si Cr Ni Mo Ti V Al B Co Cu

A 286

0.08

Max

 2

Max

0.025

Max

0.025

Max

1

Max

13.5-

16

 24-

27

 1-1.5

1.9-

2.35

0.10-

0.50

0.35

Max

0.003-

0.010

1

Max

0.50

Max

 

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.

 

Availability

Alloy A 286 is available in Sheet, Strip, Plate, Round Bar, Flat Bar, Square Bar , Hexagon Bar, Forging stock and Wire.

 

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:

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

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

³ 217HB or 220 HB (BS)

³ 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 0.2 Proof Stress (min) Tensile Strength (min) Elongation (min)
A286 Sol Tr and Aged (BS) 590 N/mm2   900 N/mm2 13%
A286 Sol Tr and Aged (AMS) 85 ksi (586 mpa) 130 ksi (896 mpa) 15%

   

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 Solution Treated and Aged 0.2 Proof Stress (min) Tensile Strength (min) Elongation (min)
A286 Sol Tr and Aged AMS 95 ksi (965 Mpa) 140 ksi (655 Mpa) 12%

  

A286 Other

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

AMS 5726 - 15% cold reduced (200 ksi/ 1379 Mpa tensile strength)

   

Specifications

UNS S66286

Rod, Bar, Wire, Forging Stock Plate, Sheet and Strip Pipe and Tube Others

ASTM A638 

ASME SA 638

SAE AMS 5726

SAE AMS 5731

SAE AMS 5732

SAE AMS 5734

SAE AMS 5737

SAE AMS 5895

BS HR 51

BS HR 52

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

SAE AMS 5525

SAE AMS 5858

AECMA PrEN 2175

AECMA PrEN 2417

 

SAE AMS 5731

SAE AMS 5732

SAE AMS 5734

SAE AMS 5737

SAE AMS 5895

 

ASTM A 453

SAE AMS 7235

BS HR 560

ASME SA 453

WL 1.4980

 

  

 Disclaimer

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

  

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