Stainless Steel vs Incoloy 800: What’s the Difference?

Stainless steel and Incoloy 800 are two materials that are often compared due to their similarities and differences. In this article, we aim to provide a detailed comparison between stainless steel vs Incoloy 800, discussing their composition, properties, applications, and other relevant aspects.

Stainless Steel vs Incoloy 800: What’s the Difference?

Stainless Steel vs Incoloy 800 – 1. Composition

Stainless steel is a broad term that refers to a family of iron-based alloys containing a minimum of 10.5% chromium. This chromium content gives stainless steel its corrosion resistance properties. However, stainless steel can be further categorized into different grades based on its composition and properties. For example, austenitic stainless steel contains nickel and chromium, while martensitic stainless steel contains carbon and chromium.

On the other hand, Incoloy 800 is a nickel-iron-chromium alloy. It contains a high percentage of nickel, typically around 30-40%, along with chromium and iron. The addition of nickel in Incoloy 800 improves its resistance to oxidation and corrosion, especially at elevated temperatures.

Stainless Steel vs Incoloy 800 – 2. Properties

The compositional differences between stainless steel and Incoloy 800 lead to distinct properties for each material.

Stainless steel is known for its corrosion resistance, durability, and aesthetics. It can be easily formed and welded, making it suitable for a wide range of applications. Austenitic stainless steel grades, such as 304 and 316, are non-magnetic and offer excellent corrosion resistance, especially in chloride-rich environments. Martensitic stainless steel grades, on the other hand, are magnetic and have higher hardness and strength, making them suitable for structural applications.

Incoloy 800, on the other hand, is primarily known for its resistance to oxidation and corrosion at high temperatures. Its high nickel content gives it good ductility and toughness, making it suitable for applications involving high-temperature environments. Incoloy 800 also has good resistance to chloride stress corrosion cracking, making it suitable for use in chemical processing and marine environments.

Stainless Steel vs Incoloy 800 – 3. Applications

The unique properties of stainless steel and Incoloy 800 make them suitable for different applications.

Stainless steel is widely used in a variety of industries, including construction, automotive, food processing, and medical. It is commonly used in the construction of pipelines, tanks, and other equipment exposed to corrosive environments. Austenitic stainless steel grades are also used in the fabrication of kitchen appliances, surgical instruments, and other equipment that requires both corrosion resistance and aesthetics.

Incoloy 800, on the other hand, is primarily used in applications that involve high-temperature environments. It is commonly used in the construction of heat exchangers, boilers, and other equipment exposed to elevated temperatures. Incoloy 800 is also used in the chemical processing industry, where its resistance to chloride stress corrosion cracking is crucial.

Stainless Steel vs Incoloy 800 – 4. Cost

The cost of stainless steel and Incoloy 800 can vary depending on various factors such as alloy content, production processes, and market demand. Generally speaking, Incoloy 800 may cost higher than stainless steel due to its higher nickel content and specialized production processes. However, the specific cost difference can vary depending on the specific application and market conditions.

Conclusion

In summary, stainless steel and Incoloy 800 are two distinct materials with unique composition, properties, and applications. Stainless steel is known for its corrosion resistance, ductility, and aesthetics, making it suitable for a wide range of industries. On the other hand, Incoloy 800 is known for its resistance to oxidation and corrosion at high temperatures, making it suitable for applications involving elevated temperatures. 

Thank you for reading our article and we hope it can help you to have a better understanding of the differences between stainless steel vs Incoloy 800. If you are looking for stainless steel and Incoloy 800 products suppliers online now, please don’t hesitate to contact Sino Stainless Steel.

As a leading supplier of stainless steel products from Shanghai, China, Sino Stainless Steel provides customers with high-quality stainless steel tubes, stainless steel pipes, stainless steel strips, stainless steel coils, stainless steel plates, stainless steel sheets, and stainless steel bars at a very competitive price.