Most of the use requirements are to maintain the original appearance of the building for a long time. In determining the type of stainless steel to be selected, the main consideration is the required aesthetic standards, the corrosiveness of the atmosphere and the cleaning system to be adopted. However, other applications are increasingly seeking structural integrity or impermeability. For example, roofs and sidewalls of industrial buildings. In these applications, the construction cost of the owner may be more important than aesthetics, and the surface is not very clean. The effect of 304 stainless steel in dry indoor environment is quite good.

 

However, in rural and urban areas, if you want to maintain its appearance outdoors, you need to wash regularly. In heavily polluted industrial areas and coastal areas, the surface will be very dirty, and even rust. But in order to obtain the aesthetic effect in outdoor environment, it is necessary to use stainless steel containing nickel. Therefore, 304 stainless steel is widely used for curtain wall, side wall, roof and other architectural purposes, but 316 stainless steel is preferred in the corrosive industrial or marine atmosphere. Several design criteria include 304 and 316 stainless steel.

 

Because duplex stainless steel 2205 combines good atmospheric corrosion resistance with high tensile strength and elastic limit strength, it is also included in the European Standards. Product shape, in fact, stainless steel is produced in full standard metal shape and size, and there are many special shapes. The most commonly used products are sheet and strip steel. Special products are also produced from medium and heavy plates, such as hot-rolled structural steel and extruded structural steel. There are also round, oval, square, rectangular and hexagonal welded pipes or seamless steel pipes and other products, including profiles, bars, wires and castings. In order to meet the aesthetic requirements of architects, a variety of commercial surface processing has been developed.

 

3D printing field

 

Stainless steel itself has good corrosion resistance, and can maintain its excellent physical and mechanical properties at high temperature. It is also widely used in the field of 3D printing.