Hey there! As a tool steel supplier, I know firsthand how frustrating it can be to find your valuable tool steel products rusted during storage. Rust not only affects the appearance of the steel but also compromises its performance and durability. In this blog, I'll share some practical tips on how to prevent rusting of tool steel during storage.
Understanding Why Tool Steel Rusts
Before we dive into the prevention methods, it's important to understand why tool steel rusts. Tool steel is an alloy that contains iron, and when iron comes into contact with oxygen and moisture, a chemical reaction called oxidation occurs. This reaction forms iron oxide, which is what we commonly know as rust. Factors like humidity, temperature fluctuations, and the presence of contaminants can speed up this process.
Keep the Storage Area Clean and Dry
The first and most crucial step in preventing rust is to ensure that the storage area is clean and dry. Moisture is the main culprit when it comes to rusting, so keeping the humidity levels in check is essential. Aim for a relative humidity of less than 50%. You can use a dehumidifier to control the humidity, especially in areas prone to high moisture, like basements or coastal regions.
Also, make sure the storage area is free from dust, dirt, and other contaminants. These particles can trap moisture and create a breeding ground for rust. Regularly clean the storage racks, shelves, and floors to remove any debris.
Proper Packaging
Proper packaging is another effective way to protect tool steel from rust. When you receive the tool steel, make sure it's wrapped in a protective material. Plastic sheeting or polyethylene bags can be great options as they act as a barrier against moisture and oxygen. You can also use rust - inhibiting papers or films. These products contain chemicals that release a vapor that forms a protective layer on the steel surface, preventing oxidation.
For larger pieces of tool steel, consider using shrink - wrap. Shrink - wrap creates a tight, sealed environment around the steel, keeping out moisture and contaminants. Just make sure to seal the edges properly to prevent any air or moisture from getting in.
Apply a Rust Inhibitor
Applying a rust inhibitor is a simple yet effective way to protect tool steel. There are different types of rust inhibitors available in the market, such as oil - based, water - based, and wax - based inhibitors.
Oil - based inhibitors are great for long - term storage. They form a thick, protective layer on the steel surface that prevents moisture and oxygen from reaching the metal. You can use a simple machine oil or a specialized rust - inhibiting oil. Just apply a thin, even layer of the oil to the tool steel using a cloth or a spray gun.
Water - based inhibitors are more environmentally friendly and easier to clean off. They are suitable for short - term storage or when you need to use the steel soon after storage. Wax - based inhibitors provide a hard, protective coating that can withstand some handling and abrasion.
Store Tool Steel in a Controlled Temperature Environment
Temperature fluctuations can also contribute to rusting. When the temperature changes, condensation can form on the steel surface, providing the moisture needed for rust to develop. Try to store the tool steel in an environment with a stable temperature. Avoid storing it in areas where the temperature varies widely, like near heating vents or in uninsulated buildings.
Use Desiccants
Desiccants are substances that absorb moisture from the air. You can place desiccants like silica gel packets or activated charcoal in the storage containers or packaging with the tool steel. These desiccants will help keep the environment inside the container dry and reduce the risk of rusting. Just make sure to replace the desiccants regularly, especially if they become saturated with moisture.
Separate Different Metals
If you're storing different types of metals together, be aware that some metals can cause galvanic corrosion when in contact with each other. Galvanic corrosion occurs when two different metals are in an electrolyte (such as moisture) and form an electrical circuit. This can accelerate the rusting process. So, it's best to separate different metals during storage. Use non - conductive materials like wood or plastic to separate the tool steel from other metals.
Regular Inspections
Even if you've taken all the preventive measures, it's still important to regularly inspect the tool steel for any signs of rust. Check the storage area and the steel itself at least once a month. If you notice any early signs of rust, like small discolorations or spots, take action immediately. You can remove the rust using a wire brush or sandpaper and then re - apply a rust inhibitor.
Case in Point: Carbon Tool Steel JIS Sk2
We offer a high - quality product called Carbon Tool Steel JIS Sk2. This type of tool steel is widely used in various industries due to its excellent hardness and wear resistance. By following the rust - prevention tips I've shared, you can ensure that your Carbon Tool Steel JIS Sk2 remains in top - notch condition during storage.
Similarly, our Carbon Tool Steels SK2 and Sk2 High Carbon Tool Steel are also subject to the same rust - prevention principles. These steels are known for their high carbon content, which gives them great strength but also makes them more susceptible to rust. So, proper storage and rust prevention are crucial for maintaining their quality.
Conclusion
Preventing rusting of tool steel during storage is all about controlling the environment and protecting the steel from moisture and oxygen. By following these simple steps like keeping the storage area clean and dry, using proper packaging, applying rust inhibitors, and conducting regular inspections, you can ensure that your tool steel stays rust - free and in good condition for a long time.
If you're in the market for high - quality tool steel, we're here to help. We offer a wide range of tool steel products, including the ones I mentioned above. Whether you need a small quantity for a DIY project or a large order for an industrial application, we can meet your needs. Don't hesitate to reach out to us for more information or to start a purchase negotiation. We're always happy to assist you!
References
- ASM Handbook Volume 11: Failure Analysis and Prevention, ASM International
- Steel: Heat Treatment and Processing Principles, George E. Totten, David Scott MacKenzie
