The main materials for stainless steel flanges include 304 stainless steel, 316 stainless steel, 321 stainless steel, titanium alloy, and nickel alloy. These materials are widely used in different industrial fields due to their respective characteristics.
304 stainless steel: It has good corrosion resistance and processing performance, suitable for general industrial and home decoration industries, as well as the food industry.
316 stainless steel: superior in corrosion resistance to 304 stainless steel, especially suitable for seawater environments, commonly used in marine engineering and seawater treatment equipment.
321 stainless steel: It has high temperature resistance and corrosion resistance, and is suitable for high-temperature medium pipeline systems.
Titanium and nickel alloys: used in special environments, such as ultra-high pressure systems, to provide higher strength and safety.
Choosing the appropriate material requires consideration of factors such as corrosion resistance, mechanical properties, welding performance, heat resistance, and economic cost. For example, austenitic stainless steels such as 304 and 316 are widely popular due to their excellent corrosion resistance, while martensitic and ferritic stainless steels perform well under different pressure and load conditions. In addition, titanium alloys and nickel alloys can also provide higher strength and corrosion resistance in specific applications.