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304 stainless steel is the most widely used chromium nickel stainless steel. As a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; Stamping, bending and other hot workability are good, without heat treatment hardening (use temperature - 196 ℃~800 ℃). It is resistant to corrosion in the atmosphere. If it is an industrial atmosphere or a heavily polluted area, it needs to be cleaned in time to avoid corrosion. Suitable for food processing, storage and transportation. It has good processability and weldability. Plate heat exchanger, corrugated pipe, household goods (Class 1 and 2 tableware, cabinet, indoor pipeline, water heater, boiler, bathtub), auto parts (windshield wiper, muffler, molded products), medical appliances, building materials, chemistry, food industry, agriculture, ship parts, etc. The 304 stainless steel with strictly controlled content can also be called food grade 304 stainless steel.