Expert guide to choosing the right nickel alloy for your application. Compare grades, understand properties, and make informed decisions.
Selecting the right nickel alloy for your application is critical for performance, safety, and cost-effectiveness. This comprehensive guide will walk you through the key factors to consider when choosing between Inconel, Hastelloy, Incoloy, and other nickel alloy families.
The three most critical factors are: operating temperature, corrosive environment, and mechanical stress requirements. Start by defining these parameters clearly.
Maximum service temperature requirements
Chemical resistance requirements
Strength and durability requirements
Manufacturing and processing needs
Economic factors in material selection
| Grade | Best For | Max Temp | Cost |
|---|---|---|---|
| Inconel 625 | High-temperature oxidation resistance | 2000°F | $$$ |
| Hastelloy C276 | Chemical processing environments | 1800°F | $$$$ |
| Inconel 718 | High-stress aerospace applications | 1300°F | $$ |
| Incoloy 825 | Sulfuric acid environments | 1500°F | $$ |
High temperature (1800-2000°F), oxidizing atmosphere
Inconel 625
Excellent high-temperature oxidation resistance and strength retention
Hydrochloric acid service, moderate temperature
Hastelloy C276
Superior resistance to reducing acids and chloride environments
High stress, moderate temperature (1200°F)
Inconel 718
Age-hardenable for high strength, good fatigue resistance
70% sulfuric acid, 200°F
Incoloy 825
Excellent resistance to sulfuric acid, cost-effective solution
Our metallurgy experts are here to help you choose the optimal nickel alloy for your specific application. Get personalized recommendations and competitive pricing.