A-286 Superalloy

A-286 is an iron-based superalloy that shares many similar characteristics with stainless steel alloys. Besides iron (Fe), other elements that makeup A-286 are, nickel (Ni) (24.0% – 27.0%) and chromium (Cr) (13.5% – 16.0%), along with trace amounts of titanium (Ti), aluminum (Al), vanadium (V), and others. 

This alloy is age-hardenable to ensure high yield strength and resistance to corrosive elements, including saltwater and high temperatures. Because of these traits, A-286 forged parts are commonly used for aerospace and power generation sectors, among others. 

The UNS code for A-286 is S66286.

Chemical Composition

(%max., unless shown as range or min.)

Ni CR Mo Co V Al Ti B C Mn Si P S Fe
Min./Max
24.0-27.0
13.5-16.0
1.0-1.5
1.0 max
0.1-0.5
0.35 max
1.9-2.35
0.003-0.01
0.08 Max
2.0 max
1.0 MAX
0.025 Max
0.025 Max
Balance

Applicable Specifications

Product Specification
Forgings - Rolled Rings
ASME SA-182, ASTM A 182, ASTM A 240, ASTM A 276, ASTM A 473, ASTM A 829

Common Fabrication Processes

  • Turbines – Gas and Steam
  • Jet Engine Components 
  • Valves and Pumps
  • Fasteners
  • Rings
  • Discs

Industries that use A-286 Forgings:

  • Aerospace
  • Marine
  • Power Generation
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Product Specification
Forging, Bar
AMS 5526, AMS5731, AMS 5732, AMS 5734, AMS 5735, AMS 5736, AMS 5737, AMS 5853, AMS 5895
Forging, Ring
AMS 5731, AMS 5732, AMS 5735, AMS 5736, AMS 5895
Forging, Various
AMS 5731, AMS 5732, AMS 5734, AMS 5735, AMS 5736, AMS 5737, AMS 5895