Due to the many types of stainless steel, there are many standard grades, and there are also a large number of non-standard grades that are widely used. These grades have different properties, so it is very difficult to choose the appropriate stainless steel grades. It involves specialized knowledge in various disciplines such as materials science, corrosion science, and engineering. In addition, engineering experience is an indispensable and important condition for the rational selection of stainless steel. The reasonable selection of stainless steel components or equipment materials should require the following conditions and subject knowledge.

⒈ Service conditions

       The service conditions of stainless steel components or equipment, including corrosive medium composition, temperature, pressure, stress state, life expectancy, etc., are the prerequisites for selecting suitable stainless steel. Fully understanding the conditions of use of components is the first and foremost condition for a reasonable selection of stainless steel.

⒉ In-depth understanding of stainless steel properties and related data

       Stainless steel materials should be selected according to the working conditions of components or equipment. The material selector should have a comprehensive understanding of the properties of various types of stainless steel, the environmental factors that limit its use, and whether it is easy to purchase before making targeted selections.

⒊ Engineering practical experience

       Under the same service conditions, the actual use experience of stainless steel materials is an important basis for reasonable material selection, and special attention should be paid to it.

⒋Simulation test data

       In many corrosive environments, without actual use experience, laboratory simulation test data or field coupon data are often the key data for the rational selection of stainless steel materials.