GH4199 is a Ni-Cr-based precipitation hardening deformed superalloy, the operating temperature is below 950 degrees Celsius. The alloy is solid solution strengthened by adding tungsten, molybdenum and chromium elements, aluminum and titanium elements are added to form an aging strengthening phase, and boron and magnesium elements are added to purify and strengthen the grain boundaries. The alloy has higher strength, good oxidation resistance and good weldability. Alloy is one of the high temperature used in precipitation hardening type sheet.
GH4199 Applications and Features:
GH4199 is suitable for welding load-bearing components such as afterburner heat shields, adjustable nozzle heat shields, sleeves, and airborne equipment parts that work below 950 degrees Celsius. The high degree of alloying and the large deformation resistance lead to poor cold and hot working plasticity of the alloy. The cold deformation amount of the number of forgings should be controlled during processing to avoid processing cracks.
GH4199 similar grades:
High temperature new name High temperature old name
GH4199 GH199
эп199,XH56BMTЮ
Chemical composition of GH4199:
Carbon C Silicon Si Manganese Mn Phosphorus P Sulfur S Chromium Cr
≤0.1 ≤0.55 ≤0.5 ≤0.015 ≤0.015 19-21
Nickel Ni Molybdenum Mo Cobalt Co Copper Cu Iron Fe Niobium Nb
Remainder 4-6 - ≤0.07 ≤4 1.15-1.65
Boron B Titanium Ti Aluminum Al Magnesium Mg Tungsten W Cerium Ce
≤0.008 1.1-1.6 2.1-2.6 ≤0.05 9-11 ≤0.01
GH4199 physical properties:
Density g/cm³ Magnetic Thermal Conductivity/w/(m.k) Resistivity specific heat capacity coefficient of linear expansion
100-800ºC °C)/(Ω.mm2/m) °C)/kg/(kg.k) °C /(10-6/k)
100ºC 25-800ºC 25~800ºC
8.64 None 10.1-22.2 - - 15.27
Temperature 0/ºC 20 600 700
Elastic modulus E/GPa 230 184 148
GH4199 mechanical properties:
Type Heat treatment Temperature 0/°C Tensile strength ΣbMPa ≤ Elongation A/% ≥ Section shrinkage Z/%≥
Hot rolled bar 1150-1200 20 1225 30 -
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