The material choice of stainless steel welded flange is very important. When we choose, there are many ways to choose. Of course, the purpose of our choice is to ensure that the material of stainless steel welded flange can not be different. The following Jianye stainless steel flange manufacturers will give you a brief introduction.
Stainless steel flanges are mainly used in the food industry and surgical equipment. Special corrosion resistant structure can be obtained by adding molybdenum element. It is also used as "Marine steel" because it has better chlorine resistance than 304. SS316 is commonly used in nuclear fuel recovery units. Grade 18/10 stainless steel also generally meets this application level.
In order to save stainless steel flange material, use the form of welded rings. After welding the welded ring and connecting pipe, the structure must be machined on the sealing surface. Typically, the operating pressure is 2.5MPa or less. Smooth surface flat welded flange, due to poor connection stiffness, poor sealing performance, is not suitable for toxic, explosive medium air tightness requirements of high equipment.
Plate material of carbon steel or stainless steel stainless steel flange connection structure, if carbon steel, the surface needs nickel, clamp material cast aluminum ZL7. The seal has a roughness of 20 pads and may not have significant radial grooves and notches.