Product features

GH901 is an austenitic precipitation-hardening alloy based on Fe-43Ni-12Cr, alloyed with titanium, aluminum, and other strengtheni, containing trace amounts of boron and low carbon. It is strengthened by the dispersion of metastable γ[Ni3(Ti, Al)] phases, with trace aluminum inhibiting the trformation of γ to η-Ni3Ti phases. The alloy exhibits high yield strength and creep strength below 650°C, good oxidation resistance belo, and stable microstructure during long-term use.

Application scope domain

This alloy is a relatively mature alloy developed early on, widely used for manufacturing rotating disk components (turbine disks, compressor disks, shaft ntc.), static structural components, turbine outer rings, and fasteners for aero and land-based gas turbine engines operating below 650°C.