A-286 Bolts
GH2132 · UNS S66286 · W.-Nr. 1.4980
Max temp
650°C
Tensile
1000 MPa
Sizes
M6-M100
Cert
EN 10204 3.1 / 3.2
A-286 (UNS S66286, GH2132, 1.4980) is an iron-based, age-hardenable austenitic bolting grade rated to 650°C and supplied to ASTM A453 Grade 660 and AMS 5732 at 1000 MPa tensile and 690 MPa yield in the aged condition. Strengthening comes from gamma-prime Ni₃(Al,Ti) precipitates, so a286 bolts and a286 fasteners deliver roughly 80% of the strength of Inconel 718 at a fraction of the nickel content, and therefore a fraction of the cost.
Specifications
Composition in wt% per ASTM A453 Grade 660. Balance and residuals verified by 100% PMI on every lot.
A-286 questions we get most
650°C (1202°F) for load-bearing service. A286 hex bolts and a286 stud bolts survive short excursions to 700°C but the gamma-prime over-ages and proof strength falls sharply above 650°C.
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