304- - - - -is 18 / 8 stainless steel. The GB card number is 0Cr18Ni9.
316- - - - -After 304, the second most widely used steel species, mainly used in the food industry, pharmaceutical industry and surgical equipment, the addition of molybdenum elements to obtain a special corrosion-resistant structure. It is also used as a "Marine steel" because of its better chloride corrosion resistance than the 304 stainless steel pipe. SS316 is commonly used for nuclear fuel recovery units. Class 18 / 10 stainless steel pipes generally match this application level.
