SUS316 has better rust protection than SUS304 (also called 304 stainless steel). Due to the low carbon content and the presence of 2%~3% molybdenum, SUS316 improves the corrosion resistance to reducing salts and various inorganic and organic acids, alkalis and salts, as well as the strength of high-temperature properties. Therefore, SUS316 has better rust prevention effect.
304 is widely used to make equipment and machine parts that require good overall performance (corrosion resistance and molding). In order to maintain the corrosion resistance inherent in stainless steel, the steel must contain more than 18 percent chromium and more than 8 percent nickel. 304 stainless steel is a grade of stainless steel produced according to the American ASTM standard.
Extended information:
SUS316 related applications:
SUS316 stainless steel is one of the most widely used chromium-nickel stainless steels, as a kind of widely used steel, has good corrosion resistance, heat resistance. Low temperature strength and mechanical properties; stamping, bending and other hot workability is good, no heat treatment hardening phenomenon (use temperature -196 ℃ ~ 800 ℃). Resistant to corrosion in the atmosphere, if it is an industrial atmosphere or heavily polluted area, it needs to be cleaned in time to avoid corrosion.
Suitable for food processing, storage and transportation. Good processability and weldability. Plate heat exchanger, bellows, household goods (cutlery, cabinets, indoor plumbing, water heaters, boilers, bathtubs), automotive parts (windshield wipers, mufflers, molded products), medical appliances, building materials, chemical, food industry, agriculture, ship parts, etc. 304 stainless steel is nationally recognized as food grade stainless steel.
Baidu Encyclopedia-SUS316
Baidu Encyclopedia-304 Stainless Steel