UNILOY 15-5 can be annealed (solution treated) to produce a martensite-austenite mixture and then aged to various levels of hardness and strength. It offers a broad range of mechanical properties. It is consumable remelted to improve cleanliness and mechanical properties. Normally, bars are supplied solution-treated (Condition A), machined very near to the finished dimensions and then age hardened. The many applications of Uniloy 15-5 include valves and fittings, gears, shafting, springs, and bearings. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, and machining. Filing Code: SS-434. Producer or source: Cyclops.