304 stainless steel is a common material in stainless steel, the density is 7.93 g/cm3, also called 18/8 stainless steel in the industry.
High temperature resistance of 800 ℃, with good processing performance, high toughness, widely used in industrial and furniture decoration industry and food medical industry.
The common labeling methods in the market are 0Cr18Ni9, SUS304, of which 0Cr18Ni9 generally indicates that the national standard production, 304 generally indicates that the ASTM standard production, SUS 304 indicates that the Japanese standard production.
304 is a general-purpose stainless steel, which is widely used in the production of equipment and machine parts requiring good overall performance (corrosion resistance and molding). In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 18% chromium and more than 8% nickel. 304 stainless steel is a grade of stainless steel produced in accordance with ASTM standards.
The composition of 304 stainless steel is as follows:
Expanded Information:
SUS304 refers to 304 stainless steel.
SUS is the Japanese material standard, 304 stainless steel is produced in accordance with the U.S. ASTM standard stainless steel grade. 304 is equivalent to China's (06Cr18Ni9) stainless steel, Japan also quoted the U.S. called, called: SUS304.
Because of the high nickel content and austenitic single-phase organization at room temperature, it is compared with the Cr13 stainless steel has a high level of nickel, and the austenitic single-phase organization, it has a high level of austenitic single-phase organization. Cr13 stainless steel compared with high corrosion resistance, high plasticity and toughness at low, room and high temperatures, as well as better cold forming and weldability.
But the strength at room temperature is lower, intergranular corrosion and stress corrosion tendency is larger, cutting and machining is poor. Austenite has no phase transition when heated, so it cannot be strengthened by heat treatment. Improve the corrosion resistance of steel can only heat treatment.
304 stainless steel with its good heat resistance, and is widely used in the production of corrosion-resistant and molding equipment and machine parts. At present, 304 stainless steel has been widely used in food, chemical, atomic energy and other industrial equipment as well as decorative areas and household goods, cabinets, indoor piping, water heaters, boilers, bathtubs, automobile parts, medical appliances, building materials, chemical, food industry, agriculture, ship parts.
Characteristics
Good corrosion resistance, heat resistance, low temperature strength and mechanical properties, stamping and bending and other hot workability, no heat treatment hardening phenomenon, non-magnetic.
References:
Baidu Encyclopedia - SUS304