GH93 precipitation hardening nickel base superalloy
Overview of GH93 features and application areas:
The alloy is a precipitation hardening nickel-based alloy containing high cobalt and chromium, with high strength and good group strength stability. It is used below 815 ºC and has good comprehensive performance. It is used for aero-engine turbine blades and small engines. Turbine discs and fasteners.
GH93 similar grades:
GH4093, Nimonic93 (UK), NCK20TA (France)
Chemical composition of GH4093/GH93:
Carbon C: ≤0.13
Silicon Si: ≤1.00
Iron Fe: ≤1.00
Phosphorus P: ≤0.015
Sulfur S: ≤0.015
Manganese Mn: ≤1.00
Chromium Cr: 18.00~21.00
Aluminum Al: 1.00~2.00
Boron B: ≤0.02
Titanium Ti: 2.00~3.00
Copper Cu: ≤0.20
Cobalt Co: 15.00~21.00
GH93 heat treatment system:
a Cold rolled sheet, (1100~1150)ºC/AC+710ºC±10ºC*16h/AC, the holding time of solution treatment is determined by the thickness of the plate, HB≥290HV;
b bar, (1050~1080)ºC*8h/AC+710ºC±10ºC*15h/AC
GH93 Metallographic structure:
The alloy precipitates γ' phase on the austenite matrix, the M23C6 carbides are distributed in the grain boundary in chains, the MC carbides are mainly distributed in the grains, and no M7C3 carbides are found.
GH93 process performance and requirements:
1. The alloy has good hot working plasticity. In the temperature range of 1050~1150ºC, the allowable upsetting deformation is 80% without cracking. The forging temperature is 1130~1150ºC, and the final forging temperature is not lower than 950ºC.
2. The average grain size of the alloy is closely related to the deformation degree and final forging temperature of the forging.
3. The plates can be connected by argon arc welding. The weldability in the solid solution state is still good. After welding, the stress is eliminated and the aging treatment is carried out.
4. The cutting performance of the alloy in the solid solution state is better than that in the aging state.
,
Company Profile
Test Equipment :
Company strength:
Certificate:
Welcome to contact us,thanks
Our products sales all over the world as well. From the following two websites you can also get more information about our company:
http://xingda-alloy.en.made-in-china.com
http://xingda-alloy.en.made-in-china.com
Welcome to contact us,thanks
Audited Supplier 
){kind=link}
){kind=link}