Inconel 718, Inconel 625 and Hastelloy X selection
Don't get lost in material selection! Today, we will systematically sort out the three major high-temperature alloys Inconel 718, Inconel 625 and Hastelloy X
Don't get lost in material selection! Today, we will systematically sort out the application fields and best use scenarios of the three major high-temperature alloys - Hastelloy X, Inconel 718, and Inconel 625!
Basic knowledge of materials
| Material | Key Characteristics |
|---|---|
| Hastelloy X | Excellent high-temperature strength + Outstanding oxidation resistance, suitable for long-term service up to 1150°C |
| Inconel 718 | Ultra-high strength, suitable for high-temperature and high-stress applications up to 650°C |
| Inconel 625 | Exceptional corrosion resistance, suitable for marine/chemical environments at moderate temperatures |
Application field map (industry quick search)
| Application Scenario | Hastelloy X | Inconel 718 | Inconel 625 |
|---|---|---|---|
| Aircraft Engine Combustors | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐ |
| Turbine Disks & Hot Section Parts | ⭐ | ⭐⭐⭐⭐⭐ | ⭐ |
| Industrial Furnaces/Heaters | ⭐⭐⭐⭐ | ⭐ | ⭐ |
| Gas Turbine Combustion Systems | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐ |
| Oil & Gas Equipment | ⭐⭐⭐⭐ | ⭐⭐ | ⭐⭐⭐⭐ |
| Marine Engineering/Seawater Systems | ⭐⭐ | ⭐⭐ | ⭐⭐⭐⭐⭐ |
| Chemical Processing Equipment | ⭐⭐ | ⭐⭐ | ⭐⭐⭐⭐⭐ |
| Flue Gas Desulfurization (FGD) | ⭐ | ⭐ | ⭐⭐⭐⭐ |
| Nuclear Power Components | ⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐ |
Quick material selection guide
High temperature oxidation resistance --Choose Hastelloy X
High strength and high load --Choose Inconel 718
Corrosion resistance in medium temperature environment --Choose Inconel 625
Application Cases
Inner wall of aircraft engine combustion chamber -- Hastelloy X
Rocket engine propulsion components -- Inconel 718
Subsea oil and gas collection pipeline -- Inconel 625
Summary
Hastelloy X: The first choice for extreme high temperatures, breaking the heat resistance limit
Inconel 718: A must-have for high-strength bolts and turbine discs, a star alloy for aerospace
Inconel 625: The king of corrosion resistance in the marine and chemical industries
Under different temperature, corrosion, and load conditions, reasonable material selection can greatly improve the safety, life, and cost-effectiveness of the project!
If you have more questions about the selection of Hastelloy, Inconel 718, and 625 alloys, or need a detailed material performance data sheet (TDS) or application plan, please leave a message in the background for consultation! Let us use our professionalism to help your high-end project succeed!
