Product Features

GH648 is a Ni Cr based precipitation hardening deformation high-temperature alloy, with a long-term use temperature of less than 900 ° C and a short-term use temperature of up to 1100 ° C. The characteristic of the alloy is the addition of about 32% Cr, which gives it excellent resistance to thermal corrosion. At the same time, the alloy has moderate strength and good fatigue and creep resistance, as well as good cold working and welding performance. Suitable for producing high-temperature structural components with temperatures ranging from 900 ° C to 1000 ° C and requiring excellent corrosion resistance. The main varieties supplied are plates, strips, bars, forgings, and rings. The comprehensive performance of the alloy is superior to the performance levels of domestic GH3044 and GH3128. Due to its smaller specific gravity compared to GH3044, GH648 alloy has a higher specific strength.

Application scope and field

The alloy has been used to produce advanced aviation engine combustion chamber components and other hot end components, with good batch production and usage. Similar grades have been widely used in foreign aviation engines.