How to Corrosion-Proof Incoloy 800 Tube for Maximum Durability

Incoloy alloy 800 is a widely used material in the chemical and petrochemical industries due to its excellent resistance to corrosion and high-temperature oxidation. However, even this exceptional material can suffer from corrosion over time. In this blog post, we will discuss how to corrosion-proof Incoloy 800 tubes for maximum durability.

Choose a Suitable Surface Finish.

Several surface finishes can be used to ensure maximum durability for an Incoloy 800 Tube. The most effective and reliable corrosion protection options include electroplating, chemical film formation, mechanical polishing or pickling. Electroplating is typically the most economical option as it forms a protective coating over the metal, eliminating potential oxidation issues. Chemical film formation involves applying materials like paints or oils, providing a protective barrier over the tube surfaces. Mechanical polishing is another good option as it removes all impurities from the metal surface, making it highly corrosion-resistant. Lastly, pickling requires submerging the metal in acid solutions to dissolve any contaminants on its surface, thus providing superior protection against corrosion and rusting in industrial environments.

Consider the Environment.

Corrosion-proofing Incoloy 800 tubes for maximum durability while considering the environment can be achieved by following some simple steps:

  1. Ensure the tube is clean and free of any debris that could cause corrosion.
  2. Use a protective coating such as zinc oxide to prevent corrosion caused by moisture or chemicals in the atmosphere.
  3. If possible, keep the temperature around 400°F lower than the melting point of Incoloy 800, as this will help prevent cracking due to heat during extended periods of use.
  4. Ensure you regularly inspect and replace parts that show signs of wear or damage to extend their life and reduce environmental impacts caused by disposing of them too soon.

By implementing these measures, you should enjoy maximum durability with a minimal negative impact on your surroundings!

Use a Protective Coating.

To corrosion-proof Incoloy 800 tube, using a protective coating is essential. The most common type of coating is epoxy resin which helps to form a barrier between the metal and the environment, resisting corrosion even under extreme temperatures and humidity. Additionally, anodization can create a thin oxide layer around the tube that prevents sulfuric acid and hydrochloric acid corrosion. Galvanized coatings are recommended for further protection against saltwater or harsh climates as they help protect against oxidation caused by saltwater exposure or hot and humid conditions. Lastly, powder coating has been proven effective for both chemical resistance and aesthetic appeal while safeguarding surfaces from environmental exposure.

Prevent Galvanic Corrosion.

Incoloy 800 Tube is a nickel-iron-chromium alloy and is considered to be quite durable. It is important to prevent galvanic corrosion to make Incoloy 800 Tube corrosion resistant. This can be done in multiple ways; one way is by coating the surface of the tube with a protective layer. Another way would be to use cathodic protection, which involves using sacrificial anodes that corrode instead of protecting the metal object from corrosion. You can also use other forms of inhibitors, like Chromates or inhibitors that contain phosphate as their active ingredient. All these will help to reduce the contact between different metals and result in maximum durability for your Incoloy 800 Tube!

Maintain Proper Cleaning and Upkeep.

To maximize the durability and corrosion-proof properties of Incoloy 800 tubes, it is important to properly clean and maintain them. The first step is to ensure they are free from dirt, debris or any other foreign particles by washing them with water and soap. Dry thoroughly before proceeding with the maintenance process. The next step would be metal passivation – this can be done through a chemical or electrochemical process per the material type and application. Regular cleaning should also be followed up to protect areas affected by heat treatment/oxidation against further corrosion attacks. Apart from this, painting provides an additional layer of protection; ensuring that any crevices, holes or welded joints are filled correctly helps prevent water seepage, which might eventually cause oxide layer build-up. Properly maintained Incoloy 800 tubes will keep functioning optimally while retaining their corrosion-proof properties for longer.


In summary, Incoloy 800 is a corrosion-resistant material. Still, its protection can be enhanced by taking steps such as selecting a suitable surface finish, considering the environment, using a protective coating, preventing galvanic corrosion, and maintaining proper cleaning and upkeep. By following these guidelines, you can corrosion-proof Incoloy 800 tube for maximum durability and extend its lifespan. Consult an expert if you have any questions or concerns about protecting your Incoloy 800 tube or other materials from corrosion.