Stainless steel seamless pipes (ss seamless pipe) are not free from rust. They may rust under some special circumstances. How should we deal with this problem when it occurs? What is the reason for this phenomenon? Below, stainless steel pipe manufacturers will take you to find out.

Reasons why stainless steel seamless pipes rust:

1. Rust due to adhesion of dissimilar metals

Dissimilar metals are metals that are prone to rust, such as iron. Iron powder and iron cutting will cause rust. If the situation is not serious, just wipe it with a sponge cloth and a neutral detergent or soapy water. However, if the situation is serious and brown rust spots have formed, then you need to use a special cleaning agent on the market. agent or 15% sulfuric acid diluent for cleaning.

2. Rust caused by harmful components in the exhaust gas

Stainless steel pipes are prone to rust spots under the influence of harmful components contained in car exhaust, exhaust from air conditioners and heaters, or factory exhaust.

3. Rust caused by adhesion of salt

When exposed to sea breeze in coastal areas, 304 stainless steel pipes will also develop red rust in a short period of time. Moreover, it rusts faster than other areas, and the treatment method is the same as the first case. Coastal areas hope to use corrosion-resistant 316 stainless steel pipes as soon as possible when using stainless steel exteriors.

4. Rust caused by adhesion of cleaning solution

When stainless steel pipes rust, you should pay attention to their usage environment, application conditions, and choose appropriate pipe materials.

How to deal with rust of stainless steel seamless pipes:

1. Mechanical removal of rust layer

Mechanical removal of the rust layer is a simple but effective method of renovation. First, you need to use mechanical tools such as wire brushes or sandpaper to rub the surface of the stainless steel pipe to remove the rust layer on the surface. Then use a brush to remove debris and residues on the surface, and then polish it again to restore the surface of the stainless steel pipe. to its original bright state.

2. Pickling to remove rust layer

Pickling is a renovation method that uses acid to dissolve the rust layer. It is necessary to use a dilute acid solution to treat the surface of the stainless steel pipe so that the rust layer gradually disappears. This method is suitable for small areas of rust, but you need to pay attention to wearing protective gloves and glasses during use to avoid damage to the skin and eyes.

3. Electrochemical renovation

Electrochemical refurbishment is a relatively advanced and safer refurbishment method. By using electrolytes and electrodes, electric current is directed to the surface of the stainless steel pipe, and the rust layer is electrochemically dissolved. This method is suitable for large areas of rust, especially in situations where manual renovation is not easy.

4. Methods to prevent rust

Although rust on stainless steel pipes can be dealt with through the above-mentioned renovation methods, the better way is to prevent rust and avoid starting from the source. It is recommended to clean and wipe the surface of stainless steel pipes regularly during daily use, avoid storage in humid environments, and avoid contact with other metals. In addition, protective measures can be taken, such as applying rust inhibitors to the surface, spraying, etc.

In short, the above is an introduction to several methods for renovating stainless steel pipes after they become rusty. It is necessary to select and operate according to different situations to protect the surface of stainless steel pipes and keep them bright and shiny for a long time.