40CrNi2MoA

Alloy Steel

Chinese military aircraft structural steels: low-alloy ultra-high-strength steels and martensitic stainless steels for critical airframe/engine parts. 40CrNi2MoA.

Mechanical Properties

Quenched & tempered; Tensile 1080-1960 MPa, Yield 835-1620 MPa, Elongation 8-15% (grade & section dependent)

Chinese Standard

GJB 30A-2012

Applications

Aircraft structural members, landing gear, engine shafts, fasteners, high-strength bolts

Available Forms

Bar, forgings, plate, sheet, wire

Uses

Aircraft structures, landing gear, engine shafts, high-strength fasteners

Heat Treatment

Quenched and tempered (oil or air quench + temper); martensitic stainless grades hardened & tempered

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