Incoloy alloys are solid solutions to nickel-iron-chromium alloys used in high-temperature applications. Incoloy alloys offer excellent corrosion resistance in oxidizing and reducing environments, making them suitable for various applications. The different types of Incoloy alloys offer varying mechanical properties, and temperature ranges, and are used in different environments.
In this blog, we will compare Incoloy 800, 800H, and 800HT, their compositions, specifications, and more. We'll also look at the various product forms offered, and why they are ideal for different applications.
Incoloy 800:
Incoloy 800 is a nickel-Chromium alloy that is used in high-temperature applications. It is known for its excellent strength and resistance to oxidation and carburization in high-temperature environments. Incoloy 800 is composed of 32-37% Nickel, 19-23% Chromium, with small amounts of Carbon, and Aluminium. Its mechanical properties include a tensile strength of 75,000 psi, a yield strength of 30,000 psi, and an elongation of 30%.
Incoloy 800H:
Incoloy 800H is similar to Incoloy 800, but has a higher carbon content, which gives it better creep strength. Incoloy 800H is composed of 30-35% Nickel, 19-23% Chromium, with 0.05-0.10% Carbon. Its mechanical properties include a tensile strength of 75,000 psi, a yield strength of 30,000 psi, and an elongation of 30%.
Incoloy 800HT:
Incoloy 800HT is similar to Incoloy 800H but has a higher temperature limit. Incoloy 800HT is composed of 30-35% Nickel, 19-23% Chromium, with small amounts of Carbon, Aluminium, and Titanium. Its mechanical properties include a tensile strength of 75,000 psi, a yield strength of 30,000 psi, and an elongation of 30%.
Product Forms offered at Mega Mex:
Mega Mex offers Incoloy alloys in various product forms such as round bars, sheets, plates, coils, and pipes. Their products come in different sizes and specifications to meet the standard ASTM, ASME, and API. These products are ideal for different applications such as pressure vessels, heat exchangers, reactors, power generation, and others.
Why Incoloy 8025 is not ideal for high-temperature applications:
Incoloy 8025 is a cobalt-nickel-chromium-tungsten alloy that is highly resistant to corrosion and oxidation in harsh environments. However, it is not ideal for high-temperature applications because it does not possess the same outstanding mechanical properties as Incoloy 800, 800H, and 800HT. Incoloy 8025 is composed of 36% Nickel, 21% Chromium, 20% Cobalt, 8% Tungsten, and small amounts of Iron and Manganese.
Conclusion:
In summary, Incoloy alloys offer excellent resistance to oxidation and corrosion in high-temperature environments. Incoloy 800, 800H, and 800HT alloys are the most popular Incoloy alloys used in various applications. They have varying mechanical properties and temperature ranges that make them ideal for different environments. For high-temperature applications, it is essential to select the right alloy to ensure safety and reliability. Mega Mex offers a wide variety of Incoloy products to meet your specific requirements.