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Mainly used in the food industry and surgical equipment, adding molybdenum elements to obtain a special structure of corrosion resistance. Because of its better resistance to chloride corrosion than 304, it is also used as "marine steel. SS316 is usually used in nuclear fuel recovery devices. 18/10 grade stainless steel is usually also in line with this application level.

Mainly used in the food industry and surgical equipment, adding molybdenum elements to obtain a special structure of corrosion resistance. Because of its better resistance to chloride corrosion than 304, it is also used as "marine steel. SS316 is usually used in nuclear fuel recovery devices. 18/10 grade stainless steel is usually also in line with this application level.
In order to save stainless steel material, the form of welding ring is adopted. This structure must be in the welding ring and nozzle welding after the sealing surface processing. Generally used to hang under operating pressure 2.5MPa. Smooth face flat welding flange, due to poor connection rigidity, sealing performance is not good, so the toxic and flammable and explosive medium air tightness requirements of high equipment should not be used.
The connecting plate of this structure is made of carbon steel or stainless steel. If carbon steel is used, the surface needs to be nickel-plated, and the clamp material is cast aluminum ZL7. The seal roughness of the connecting disk is 20, and there must be no obvious radial grooves and nicks. Specific structure can be seen GB4982-85.