ASTM A297 HH alloy steel casting has good strength and heat resistance. ASTM A297 HH alloy grade covered by this specification are general purpose alloys and no attempt. It has been made to include heat-resisting alloys used for special production application. Welcome to come and visit our investment casting process foundry.

ASTM A297 specification covers iron-chromium and iron-chromium-nickel alloy castings for heat-resistant service. A297 HH heat resistant steel casting is used to make furnace grates, heat exchanger tubes and burner nozzles. Oxidation resistance at 1400 - 1800 F (760-982 C ) maximum operating temperature 2000 F (1093 C).

Applications:

Rabble arms and blades, grate bars, cement kiln cooling chain and shackles, tuyeres, furnace burner nozzles, radiant heater tubes and fittings, tube supports and hangers, tube sheets, heat treatment furnace hardware, furnace retorts and muffles, inderizing sidewalls,Annealing trays, billet skids, burner nozzles, carburizing boxes, convection tube supports, dampers, exhaust manifolds, flue gases stacks, grate supports, hardening trays, kiln nose ring segments, normalizing discs, pier caps, quenching trays, radiant tubes and supports, refractory supports, retorts, roller hearths and rails, stoker parts, tube hangers, Elbows