1. Feel the texture of stainless steel products, generally high-quality stainless steel, bright color, moderate thickness, smooth, do not choose things that feel rough on the surface.
2. The material can resist weak corrosive substances such as air, steam, water or steel, called stainless steel, due to the difference in chemical composition, the corrosion resistance is also different, ordinary steel is usually not corrosion-resistant, and acid-resistant steel is usually not. corrosion.
3. "Stainless steel" refers not only to a single type of steel, but also to hundreds of different industrial steels. Each developed steel has excellent properties in a specific application, and the key to success is to first understand your goals and then determine the correct steel grade. Generally only six are relevant for construction, and they all contain 17-22 chromium, and even better grades contain nickel. The addition of molybdenum can further improve the corrosion resistance of the atmosphere, especially in chloride-containing atmospheres.
4. The service conditions of stainless steel parts or equipment include corrosive medium composition, temperature, pressure, stress conditions and life expectancy, which are prerequisites for selecting suitable stainless steel. A thorough understanding of the service conditions of the components is the basic condition for the rational selection of stainless steel. The material selector must have a comprehensive understanding of the properties of the various stainless steels, i.e. environmental factors that limit usage and determine ease of purchase.
