17-4 stainless steel ( Grade 630 ) is an age-hardening martensitic alloy combining high strength with the corrosion resistance of stainless steel. Hardening is achieved by a short-time, simple low-temperature treatment. Unlike conventional martensitic stainless steels, such as type 410, 17-4 stainless steel is quite weldable. The strength, corrosion resistance and simplified fabrication can make 17-4 stainless steel a cost-effective replacement for high strength carbon steels as well as other stainless grades.
UNS S17400, AISI 5803, AMS 5803, AMS 5825, AMS 5604, AMS 5622, AMS 5643, ASME SA-693, ASME SA-564, ASTM A-564, ASTM A-693 (Sheet, Plate, bar)
UNS S17480, AMS 5803 (MIG, TIG & Coil Weld Wire)
UNS W37410, AMS 5827 (Covered Electrodes)
Food processing machinery, silencers, suppressors, gate valves, Aircraft structures, accessories, engine parts, pulp & paper mill equipment, Chemical processing equipment, Pump shafts, gears, plungers, Valve stems, balls, bushings, seats, Fasteners, oil patch, mechanical seals, aerospace, petrochemical.