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Common rust conditions and treatment methods for stainless steel water pipes

The stainless steel water pipe does not mean that it will not rust, but it is not easy to rust with respect to iron and copper pipes. A good quality stainless steel water pipe for a dozen years is still not a big problem, but it should be used well. The stainless steel water pipe is not easy to rust, because the stainless steel pipe is nickel-chromium alloy steel. After the nickel-chromium content reaches a certain condition, a protective film is formed on the surface of the steel pipe to protect the steel pipe from rust. However, once the external force or corrosive environment destroys the protective film, the steel pipe is easily rusted. The six types of rust that are common in stainless steel water pipes and their treatment are as follows:

1. Rusted by dissimilar metals

Here, it refers to a dissimilar metal such as iron that is easily rusted. It is caused by iron powder iron cutting. If the situation is not serious, it can be wiped directly with sponge or cloth with neutral detergent or soapy water. However, if the situation is serious and brown rust has been formed, it will be used on the market. A special cleaning agent or a 15% sulfuric acid dilution is used for cleaning.

2. Attachment to rust caused by harmful components in the exhaust

Under the influence of harmful components contained in automobile exhaust, air-conditioning, or factory exhaust, stainless steel pipes are prone to rust spots. The processing can be handled in the first case. However, if in this environment, it is necessary to do 2-3 times of comprehensive cleaning work every year.

3. Rusting due to salt adhesion

In the coastal area, the front side is blown by the sea breeze, and the 304 stainless steel pipe will also generate 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. In the coastal area, when using stainless steel exteriors, it is desirable to use stainless steel pipes of 316 material with higher corrosion resistance.

4. Rusting caused by attached cleaning solution

If it cannot be removed with a neutral detergent, use a cleaning solution to remove it.

5. Rusting due to fingerprints or hand scales

If it cannot be removed with a neutral detergent, use a sponge, cloth, etc., with an organic solvent (alcohol, acetone, light oil, etc.) to wipe. If this method is still not completely removed, use stainless steel with a cleaning solution to remove it. In short, after cleaning various cleaning methods, it is necessary to use clean water for final cleaning.

6. Contamination caused by surface protective film

Wipe with a sponge, cloth dampened with a water-soluble neutral detergent, or alcohol. If it is still invalid, use a thinner and light oil to remove it. Rinse thoroughly with clean water after washing.
Source: China Stainless Steel Water Pipes Manufacturer – Yaang Pipe Industry Co., Limited (www.yaang.com)

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