1, 304 stainless steel is a common material in stainless steel, also known as 18/8 stainless steel in the industry, with a density of 7.93 g/ cm3. High temperature resistance of 800℃, good processability and high toughness, widely used in industry, furniture decoration industry and food and medical industry.
2. There are 0Cr 18Ni9 and SUS304 in the market, of which 0Cr 18Ni9 generally represents national standard production, 304 generally represents ASTM standard production, and SUS 304 represents Japanese standard production.
3, 304 is a general stainless steel, which is widely used to manufacture equipment and parts that require good comprehensive performance (corrosion resistance and formability). In order to maintain the inherent corrosion resistance of stainless steel, steel must contain more than 18% chromium and more than 8% nickel. 304 stainless steel is a stainless steel brand produced according to American ASTM standard.
Compared with Cr 13 stainless steel, 304 stainless steel has higher corrosion resistance, higher plasticity and toughness at low temperature, room temperature and high temperature, and better cold formability and weldability because of its high nickel content and austenite single-phase structure at room temperature. However, the strength at room temperature is low, intergranular corrosion and stress corrosion tend to be large, and the machinability is poor. Austenite has no phase change when heated, so it cannot be strengthened by heat treatment. Only heat treatment can improve the corrosion resistance of steel.
Reference source Baidu Encyclopedia, 304 stainless steel.