304 stainless steel is a common material in stainless steel with a density of 7.93 g/cm3; it is also called 18/8 stainless steel in the industry, meaning it contains more than 18% chromium and more than 8% nickel; 304 stainless steel is the most widely used one Chromium-nickel stainless steel, as a widely used steel, has good corrosion resistance, heat resistance, low-temperature strength, and mechanical properties; good hot workability such as stamping and bending, no heat treatment hardening phenomenon (use temperature -196℃～ 800°C).
Corrosion resistance 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. Has good processability and weldability. It can be widely used in plate heat exchangers, bellows, household products (custom 304 stainless steel cabinet that is common in the market is a derivative of this material), auto parts, medical equipment, building materials, chemicals, food industry, agriculture, ship parts Wait.
However, it should be noted that food-grade 304 stainless steel has stricter content indicators than ordinary 304 stainless steel. For example: the international definition of 304 stainless steel is basically 18%-20% of chromium and 8%-10% of nickel, but food-grade 304 stainless steel is 18% of chromium and 8% of nickel, which is allowed to fluctuate within a certain range, and Limit the content of various heavy metals. In other words, 304 stainless steel is not necessarily food grade 304 stainless steel. 304 stainless steel is a grade of stainless steel produced according to the American ASTM standard.