GH2747 is a Fe-Ni-Cr-based precipitation hardening deformed high-temperature alloy. It is used in a solid solution state. Its long-term operating temperature is 1100°C-1250°C, and its short-term operating temperature can reach 1300°C. It has high strength, good structural stability and excellent antioxidant and corrosion resistance. The alloy has good weldability and can be welded using various techniques. GH2747 alloy has been used to make high-temperature anti-oxidation parts in aviation and aerospace engine combustion chambers and afterburners. It is also used to make various industrial furnace rollers, transmission devices, thermocouple sleeves and other heat-resistant parts. It is especially suitable for high-temperature anti-oxidation device parts in petrochemical, nuclear energy, metallurgy and other fields.