A286 Stainless Steel Bar

A286 is an austenitic iron-nickel-chromium superalloy conforming to AMS 5726, AMS 5731, AMS 5732, and AMS 5737. Unlike the martensitic precipitation hardening grades, A286 retains its austenitic structure throughout processing, giving it a non-magnetic character and excellent toughness across a wide temperature range.

The alloy can be age hardened to develop useful strength — tensile strength reaches 965 MPa in the solution treated and aged condition to AMS 5737 — while retaining good ductility and oxidation resistance at elevated temperatures. This makes it well suited to gas turbine components, fasteners, and structural parts operating in the 500-700°C range where conventional stainless steels would be inadequate.

A286's temperature capability extends in both directions. At low temperatures down to -196°C, the alloy remains ductile and non-magnetic — properties valued in cryogenic applications and equipment where magnetic interference must be avoided. Its corrosion resistance in aqueous environments also makes it suitable for moderate corrosion applications.

Bar is the most common product form for A286, used extensively for machined fasteners, stud bolts, turbine components, and shafts. The material is supplied in solution treated condition ready for age hardening after machining, allowing complex geometries to be produced before final heat treatment.