A286 SUH 660 ASTM/AISI 660/UNS K66286 X6NICRTIMOVB25-15-2, 1.4980, UNS S66286

A286, X6NICRTIMOVB25-15-2, 1.4980, SUH660, UNS S66286

A286,X6NiCrTiMoVB25-15-2,1.4980 is an austenitic age-hardenable iron based superalloy Heat resistantsteel with high strength,creep resistance,low magnetic permeability and high oxidation resistance.Endurance properties are obtained by emitting MC,M6C carbides by means of nickel,titanium andaluminum.It retains the appropriate mechanical properties to a temperature of about 650-700 ℃.Inaddition,it exhibits suitable strength properties at extremely low temperatures.Heat resistant to atemperature of about 800-900 ℃.Used as a steel for aviation and power engineering for heavy-dutyrotors,gas turbine blades,steam turbines,pressure equipment parts and reactors,jet engines androckets,exhaust systems.Also used in cryogenics and cryotechnics.

Forging

Light forging can be performed in the temperature range of 871-1010℃(1600-1850°F).Heavy forging can

be done in the temperature range of 1010-1204C(1850-2200°F).

Cold Working

Pyrotool A can be cold formed.

Annealing

Pyrotool A can be solution annealed at 982C(1800°F)and oil quenched,which should be followed byholding at 718°C(1325°F)for 16 h and air cooling.This treatment enhances high strength for the alloy.

Aging

This super alloy can be aged at 718℃(1325°F)for 16 h and air cooled to gain high strength.Prior to agingthe alloy should solution heat treated.

MELTED PROCESS

● AOD+ESR