Yes, 1095 carbon steel is susceptible to rust if it is not properly cared for and protected from moisture and exposure to corrosive elements. 1095 steel is not stainless and does not contain significant amounts of chromium or other alloying elements that provide inherent corrosion resistance.

When 1095 steel comes into contact with moisture and oxygen, it can undergo oxidation, resulting in the formation of iron oxide, commonly known as rust. Rust can cause the steel to deteriorate, affecting its appearance, integrity, and overall performance.

To prevent rust on 1095 carbon steel, it is essential to take proper care and maintenance measures, including:

1. Regular Cleaning: Remove any dirt, debris, or moisture from the steel using a clean, dry cloth or soft brush. Make sure to clean the blade after each use or exposure to potentially corrosive substances.
2. Drying: Ensure that the blade is thoroughly dried after cleaning or exposure to moisture. Moisture should not be allowed to remain on the surface of the steel.
3. Oiling or Lubricating: Apply a thin layer of oil or lubricant to the surface of the steel. This helps to create a barrier against moisture and oxygen, reducing the chances of rust formation. Suitable oils for this purpose include mineral oil, gun oil, or specialized rust-preventive oils.
4. Storage: Store the blade in a dry environment, away from excessive humidity or moisture. Consider using a storage case or sheath that provides protection from moisture and helps maintain a controlled environment around the blade.
5. Regular Inspection: Regularly inspect the steel for any signs of rust or corrosion. If any rust spots are detected, they should be promptly addressed by cleaning and reapplying protective measures.

By following these maintenance practices and providing appropriate care, you can help prevent rust formation and maintain the condition and longevity of the 1095 carbon steel.