hastelloy C276 VS Inconel 718

What is the difference between Monel K500 and Inconel 718?
Monel K500 offers excellent corrosion resistance and mechanical properties in marine and chemical environments, while Inconel 718 offers excellent high temperature stability and oxidation resistance in aerospace and nuclear applications.
What is the difference between hastelloy C276 and Inconel 718?
Strength: Inconel 718 is stronger than Hastelloy C276, especially at elevated temperatures, making it more suitable for structural applications. Processability: Both alloys are easily welded and formed, but Hastelloy C276 may require special welding techniques to maintain its corrosion resistance.


Is Nickel Alloy 718 the same as Inconel Nickel Alloy?
Alloy 625 and Alloy 718 (commonly referred to as Inconel 625 and Inconel 718) are both nickel alloys, both high temperature alloys, and both belong to the Inconel alloy family.
Is Inconel 718 stainless steel?
Inconel 718 is a precipitation-hardenable nickel-chromium alloy (not even in the same family as the iron-based stainless steels) composed of about 50% nickel, 18% chromium, molybdenum, cobalt, and iron.

Inconel 718 vs Hastelloy C276: What's the Difference?
Inconel 718 vs. Hastelloy C276 – 1. Definition
Inconel 718, also known as UNS N07718, is a precipitation-hardened nickel-chromium alloy that combines the strength of forged steel with the corrosion resistance of nickel-based alloys. Originally developed in the 1950s, it has become a widely used material in the aerospace, oil and gas, and chemical processing industries.
Hastelloy C276, also known as UNS N10276, is a nickel-molybdenum-chromium high-temperature alloy known for its excellent corrosion resistance in a wide range of corrosive environments. Developed in the 1960s, it is now used in the most demanding chemical processing, oil and gas, and marine environments.
Inconel 718 vs Hastelloy C276 – 2. Key Features
Key Features of Inconel 718:
High Strength: Inconel 718 exhibits high strength even at elevated temperatures, making it suitable for demanding structural applications.
Good Corrosion Resistance: The alloy resists corrosion in a wide variety of environments, including those containing chlorides, sulfides, and oxidants.
Excellent Fabricability: Inconel 718 is easily welded, brazed and formed, making it versatile in manufacturing processes.
Low Coefficient of Thermal Expansion: This alloy has a relatively low coefficient of thermal expansion, which minimizes thermal stresses during high-temperature operation.
Key Features of Hastelloy C276:
Excellent Corrosion Resistance: Hastelloy C276 has excellent resistance to chloride induced stress corrosion cracking, pitting and crevice corrosion making it ideal for highly corrosive environments.
High Thermal Stability: The alloy retains its mechanical properties at elevated temperatures and is suitable for high temperature applications.
Good Fabricability: Hastelloy C276 is easily welded and formed, but special consideration should be given when welding to maintain corrosion resistance.
Low Magnetic Permeability: This alloy has low magnetic permeability, which minimizes the risk of magneto-induced corrosion in certain environments.
Inconel 718 vs Hastelloy C276 – 3. Comparison
Both Inconel 718 and Hastelloy C276 offer excellent corrosion resistance and high temperature performance. However, there are some key differences between the two alloys:
Corrosion Resistance: While both alloys offer good corrosion resistance, Hastelloy C276 has excellent resistance to chloride-induced stress corrosion cracking, making it the preferred choice in the most severe corrosive environments.
Strength: Inconel 718 has higher strength than Hastelloy C276, especially at elevated temperatures, making it more suitable for structural applications.
Fabricability: Both alloys are easily welded and formed, but Hastelloy C276 may require special welding techniques to maintain its corrosion resistance.
Applications: Inconel 718 is commonly used in aerospace, oil and gas, and chemical processing applications, while Hastelloy C276 is primarily used in the harshest chemical processing and marine environments.
Conclusion
In conclusion, both Inconel 718 and Hastelloy C276 are excellent alloys with unique properties suitable for different applications. The choice between the two depends on the specific requirements of the application, such as the severity of the corrosive environment, the need for high strength, and the manufacturing requirements.
We hope it helps you better understand the difference between Inconel 718 and Hastelloy C276. If you are looking for Inconel 718 and Hastelloy C276 suppliers online, please feel free to contact Gnee Steel.
As a leading high temperature alloy supplier in China, Gnee Steel provides customers with high-quality Inconel 718 and Hastelloy C276, Hastelloy C2000, Hastelloy B3 (UNS N10675), Hastelloy D205, Hastelloy G30 (UNS N06030), Hastelloy B2, Hastelloy X alloy, Hastelloy C4 and Hastelloy C22 at very competitive prices.





