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Applications of stainless steel in construction industry steel plate

Stainless steel not only refers to a single type of stainless steel, but also refers to more than one hundred industrial stainless steels, each of which occupies an important position in its specific application field.

There are usually six steel grades in the construction application field, all of which contain 17-22% chromium, and the better steel grades also contain nickel. The addition of molybdenum can further improve the atmospheric corrosion, especially the corrosion resistance of the chloride-containing atmosphere. Most of the requirements for stainless steel are to maintain the original appearance of the building for a long time. When determining the type of stainless steel to be selected, the main consideration is the corrosiveness of the local atmosphere and the cleaning measures to be adopted.

The effect of using 430 stainless steel in a dry indoor environment is quite good. However, if you want to maintain its appearance outdoors in the countryside and cities, you need to wash it frequently. In heavily polluted industrial areas and coastal areas, the surface of stainless steel will be very dirty and even rusty. However, to obtain the aesthetic effect in the outdoor environment, nickel-containing stainless steel is required. Therefore, 304 stainless steel is widely used in curtain walls, side walls, roofs and other construction purposes. However, 316 stainless steel is mainly used in severely corrosive industries or marine atmospheres. Duplex stainless steel 2205, which has two phases and is stronger than high-strength carbon steel, has been successfully used on offshore oil platforms.

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