Stainless steel is used more and more frequently in our daily life, beautiful and durable, many people think that stainless steel is not rust, but stainless steel is not always rust, but not easy to rust, in some cases will rust.

Stainless steel is not easy to rust, and can resist the corrosion of various solutions such as atmosphere, water, acid and alkali, which has a great relationship with the composition of stainless steel. In addition to iron, the composition of stainless steel, as well as chromium, nickel, aluminum, silicon, etc., can make the structure of steel more uniform, the more closely connected the various components, corrosion is not easy to invade, coupled with the surface of the steel to generate a dense oxide protective film, just like putting on a piece of armor to steel, naturally not easy to lure.

However, rust and not rust are relatively speaking, 304 stainless steel pipe is not rust-free, but relatively not easy to rust, reduce the probability of rust, when stainless steel for a long time in a specific environment, or easy to rust, the following are several cases of rust and treatment methods:

1. Other different metals are more likely to rust when attached to the stainless steel surface. This degree of rust is generally not very serious, we can use a sponge or cloth to wipe it, with a neutral detergent, toothpaste or soapy water can be used to clean the rust on the stainless steel.
2. The surface of stainless steel is adhered to organic juice, such as melons and vegetables, juice, noodle soup, etc., in the case of water oxygen, forming organic acid, long-term adhesion on the surface of stainless steel will produce rust spots. Stainless steel surface adhesion containing acid, alkali, salt substances, such as the decoration of the wall of alkali water, stone ash water splashing, easy to cause local corrosion.
3. Stainless steel products are mechanically damaged by installation tools during installation and damage the surface protective film, for example, when installing stainless steel bolts in outdoor curtain wall projects, the wrench causes mechanical damage to the place where the bolt head contacts, and the stainless steel bolt head will appear slight floating rust after rain rinse.
4. When there are more harmful substances in the exhaust, stainless steel is also easy to cause rust, such as in the factory or urban street traffic in the area, there will be more harmful substances in the air, stainless steel pipe appearance is easy to be polluted, for a long time in this situation, stainless steel pipe may appear small rust points. If the stainless steel pipe pollution is light, you can use one method, if it is more serious, you can scrub with stainless steel rust cream, rust is more serious it is recommended to replace.
5. As the salt in the air at the seaside is more likely to cause rust of stainless steel, it is recommended to use stainless steel at the seaside, the corrosion resistance requirements are higher, and different types of stainless steel pipes are selected for different ranges of use.

Therefore, in order to keep stainless steel products bright and not corroded, it is necessary to choose the right material of stainless steel products, followed by cleaning and maintenance of stainless steel products, remove surface impurities to avoid reaction and corrosion.

Stainless steel as kitchen utensils, household life products, fasteners raw materials, whether production or life, the frequency of use is relatively high, compared with carbon steel, stainless steel screws corrosion resistance is better, for some high-end precision parts, corrosion resistance requirements are relatively high, stainless steel screws should be used, but carbon steel screws due to the lack of added alloy elements, easier to corrosion, But the hardness is stronger than stainless steel, the price of carbon steel is relatively low, we can not say which material is better, they have their own advantages and disadvantages, different industries should be based on actual demand to choose.