GH4163 superalloy is a Ni-Cr-Co-based precipitation-hardening deformed superalloy with excellent oxidation resistance, high strength, good yield strength and creep strength, and excellent resistance to cold and heat fatigue. It can be used in a temperature range of -253 to 650 °C and up to 800 °C for short-term use. The alloy has excellent oxidation and corrosion resistance in both high and low temperature environments, and has good processing properties, welding properties and long-term microstructure stability.
GH4163 is suitable for plate welded structural parts and load-bearing parts of the main combustion chamber and afterburner combustion chamber of aero engines, and the main products include hot-rolled and cold-rolled plates, hot-rolled and forged bars, cold-drawn (rolled) seamless pipes and rings.
The chemical composition of GH4163 includes carbon(C)004～0.08%, chromium (CR) 1900～21.00%, cobalt (co) 1900～21.00%, molybdenum (mo) 560～6.10%, aluminium (al) 030～0.60%, titanium (Ti) 190～2.40%, nickel (Ni) margin, iron (Fe) 070%, boron(b) 0005%, silicon (Si) 040%, manganese (mn) 060%, phosphorus (p) 0015%, sulfur (s) 0007%, copper (cu) 020%。
The physical properties of GH4163 are expressed as a density of 835g cm, magnetic is none, thermal conductivity is 12 in the range of 100-90056-30.14 W (m·k) and 1 at 20 resistivity209 ·mm m, the linear expansion coefficient is 15 in the range of 25 7004×10^-6/k。At 600-700 temperatures, the modulus of elasticity is ed gp.
Compared to the previous product, GH4169, GH4163 is slightly higher in cobalt (CO) and molybdenum (Mo), while aluminum (Al) and titanium (Ti) are slightly lower in composition. In addition, GH4163 has a wider range of operating temperatures, and has better oxidation resistance and heat resistance. The application fields of GH4163 are mainly concentrated in the plate welded structural parts and load-bearing parts of the main combustion chamber and afterburner of aero engines, and have been widely used in aero-engine furnace barrels, afterburner simplified bodies, mounting edges, mounting seats and pipe fittings, etc., and have been well produced and used.