Nickel alloy GH4738 is a nickel-based superalloy strengthened by precipitation of face-centered cubic γ′ phase, it possesses excellent matching properties of strength and toughness, fantabulous stability of microstructure and performance. This alloy is developed for service at temperatures up to 760-870°C, and it has excellent high-temperature strength, structural stability, and resistance to corrosion and oxidation.
Applications:
The alloy is widely used in manufacturing industries, such as in turbine discs and combustion chambers of aero-engines.
It is also used in the manufacturing of machine parts working at high temperatures, such as airplane engine compressor disks, and gas turbine disks.
Normal product forms: sheets, plates, bars, forgings, tubes, strips, and wires.
Specifications/Standard: GB/T14992-2017
Chemical Composition:
Nickel (Ni): Remainder
Chromium (Cr): 18.0-21.0%
Molybdenum (Mo): 3.5-5.0%
Cobalt (Co): 12.0-15.0%
Aluminum (Al): 1.2-1.6%
Titanium (Ti): 2.75-3.25%
Boron (B): 0.003-0.01%
Iron (Fe): ≤2.0%
Zirconium (Zr): 0.02-0.08%
Carbon (C): 0.03-0.10%
Physical Constants and Thermal Properties
Density: 8.22 g/cm³
Melting point: 1330-1360℃
