High-temperature alloy GH625 is composed of nickel, chromium, iron and other elements, with excellent high-temperature, mechanical and corrosion-resistant properties, widely used in aviation, aerospace and energy fields. Its production process includes melting, forging and heat treatment. In the future, with the development of technology and the emergence of new materials, the performance and application of GH625 will be further expanded, while focusing on environmental protection and sustainable development.
| <= 0.01% | |
| 20.0 ~ 23.0% | |
| <= 1.00% | |
| 8.0-10.0% | |
| <=0.40% | |
| <=0.40 | |
| 3.15-4.15 | |
| <=5.00 | |
| <=0.50 | |
| <= 0.50% | |
| <=0.015% | |
| <=0.015% | |
| <= 0.07% |
| ρ=8.4g/cm³ | |
| 1290~1350℃ | |
| λ=12.1 (100 ℃) | |
| c=430 J/kg-℃ | |
| E=205 GPa | |
| E=205 GPa Modulus of shear: G=97.9 GPa | |
| ρ=1.28 μΩ-m | |
| ν=0.308 | |
| =12.3(20~100℃) ×10-⁶/℃ |
Heat treatment of GH625 includes solid solution, aging and hot working processes. Heat treatment can regulate its performance, so that it maintains excellent mechanical properties and corrosion resistance at high temperatures. Typical heat treatment processes are as follows:
- Solid solution treatment: 1200℃, holding time 30 minutes, water quenching or other rapid cooling methods
- Thermal processing: thermal processing temperature range 1150 ℃ ~ 900 ℃, cooling water quenching or other rapid cooling method.
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