The selection of stainless steel material is based on the use conditions, basic properties and relevant use experience. After weighing the right, we can get which kind of stainless steel material should be used. Without the reference of practical experience, we can conduct simulation experiments or proofing on site. Make the final material selection according to the results.

The basic service conditions of stainless steel include: temperature, medium composition, stress state, manufacturing process, design life and special processing requirements. In the process of material selection, we just need to select the materials that should be needed according to these requirements. In some special materials that need to be processed, such as; Corrosion resistance, process performance and physical performance shall be selected under corrosive environmental conditions. In the absence of such special requirements, we choose materials from the service life, price, difficulty of supply and so on.

Generally speaking, the methods of material selection include performance method, cost method and multi-objective material selection. The corresponding materials should be selected according to the actual situation of their own use.