GH4199 superalloy: excellent performance for extreme environments.
GH4199 is a Ni-Cr-based precipitation-hardening deformed superalloy that performs well in high-temperature operating environments below 950 degrees Celsius. This article will detail the characteristics, ingredient content and performance of GH4199 and briefly compare it with similar products.
Product characteristics:High temperature application range:
GH4199 is suitable for high temperature working environment below 950 degrees Celsius, especially suitable for the manufacture of welding load-bearing components and airborne equipment parts such as combustion chamber heat shields, adjustable spout heat shields, sleeves and other fields in aviation, aerospace and other fields.
Balance of strength and toughness:
The alloy is solution strengthened (tungsten, molybdenum, chromium) and aged (aluminum, titanium) to achieve a good balance of strength and toughness to ensure excellent performance at high temperatures.
Optimized corrosion resistance:
The addition of boron and magnesium purifies grain boundaries and improves oxidation and corrosion resistance, making GH4199 perform well in extreme environments.
Composition: The main chemical components of GH4199 alloy are as follows:
Carbon (c): 01%
Silicon (Si): 055%
Manganese (mn): 05%
Phosphorus (p): 0015%
Sulfur (s): 0015%
Chromium (CR): 19-21%.
Nickel (Ni): Margin.
Molybdenum (Mo): 4-6%.
Cobalt (CO):
Copper (Cu): 007%
Iron (Fe): 4%.
Niobium (nb): 115-1.65%
Boron (b): 0008%
Titanium (Ti): 11-1.6%
Aluminum (AL): 21-2.6%
Magnesium (mg): 005%
Tungsten (W): 9-11%.
Cerium (CE): 001%
Physical Properties: Density: 864 g/cm^3
Magnetic: None.
Thermal conductivity (100-800): 101-22.2 w/(m·k)
Resistivity (100):
Linear expansion coefficient (25 800): 1527 × 10^-6 k^-1
Mechanical properties: hot-rolled rods:
Temperature 0°C: 1150-1200
Tensile strength b: 20 MPa
Elongation a: 1225%.
Section shrinkage z: 30%.
Comparison with other products:
GH4199 outperforms its competitors in the following aspects:
High temperature application range: GH4199 is suitable for up to 950 degrees Celsius, meeting a variety of high temperature working conditions, more comprehensive than some alloys.
Corrosion resistance: GH4199 is optimized for oxidation and corrosion resistance, giving it advantages over some other alloys.
Processing: Due to the high degree of alloying, GH4199 has poor plasticity in hot and cold processing, and the amount of cold deformation needs to be controlled, but satisfactory processing performance can still be achieved through appropriate processes.
GH4199 superalloy excels in extreme environments due to its superior properties, making it an ideal choice for manufacturing high-temperature parts. It is competitive in terms of strength, toughness, corrosion resistance, etc., and provides reliable guarantee for various high-temperature applications.