GH4099 is a Ni-Cr-based precipitation-strengthened deformation superalloy with excellent high temperature resistance. The long-term use temperature can reach 900℃, and the short-term use temperature can reach 1000℃. Willari GH4099 alloy at 900℃, tensile strength up to 510MPa, yield strength up to 400MPa, elongation of 28%, in the domestic leading level, suitable for the manufacture of aircraft engine combustion chamber and afterburner and other high-temperature plate bearing welding structure.