Technological properties of chromium-nickel-manganese-nitrogen austenitic stainless steel 1Cr18Ni5Mn8N (AISI1202)

AISI 1202, Also Known as 1Cr18Ni5Mn8N, is an Austenitic Stainless Steels with Nickel-Chromium-Manganese-Nitrogen Benefits.

AISI 1202 is an attractive steel with low cost and moderate performance characteristics. Its composition lends itself well to applications that require good overall corrosion resistance, as well as good formability and weldability. It exhibits higher corrosion resistance than standard austenitic grades and is also quite resistant to pitting corrosion.

Physical Characteristics: AISI 1202 has a density of 8.0 g/cm3 and a melting point of 1398°C (2560°F). Its electrical resistivity is 0.715 μohm-in.

Mechanical Characteristics: The mechanical properties of AISI 1202 are good. It has a yield strength of 85 ksi (585 MPa) and a tensile strength of 85–95 ksi (585–655 MPa). The hardness of this steel is also impressive. It has a Brinell hardness of 150 HB (15 kgf/mm2).

Corrosion Resistance: AISI 1202 is an austenitic stainless steel with good overall corrosion resistance. The chromium-nickel-manganese-nitrogen content of this steel contributes to improved resistance to various forms of corrosion compared to standard austenitic grades. It also exhibits excellent pitting corrosion and resistance to stress corrosion cracking in environments containing moderate amounts of chloride.

Heat Treatment: AISI 1202 can be heat treated at 815–871°C (1500–1600°F). The steel should be solution annealed at 871°C (1600°F) and air cooled.

Weldability: AISI 1202 is quite weldable and can be joined using any of the general welding techniques. It should be welded with filler metals that contain a maximum of 0.02% carbon.

Applications: AISI 1202 is well-suited for use in applications that require good formability and good overall corrosion resistance. Some of the potential applications of this steel include: industrial tanks and vessels, pressure vessels, architectural components, cookware and kitchen utensils, and chemical and food processing plants. It is also often used for pipework in corrosive environments.

Conclusion: AISI 1202 is an austenitic stainless steel that offers good mechanical and corrosion resistance. Its composition provides an improved resistance to pitting and stress corrosion cracking. It is weldable and can be heat treated at 815–871°C (1500–1600°F). AISI 1202 is widely used in applications that require good formability and corrosion resistance, such as industrial tanks and vessels, pressure vessels, architectural components, cookware and kitchen utensils, and chemical and food processing plants.

AISI 1202 stainless steel is a martensitic chromium-nickel-manganese-nitrogen austenitic stainless steel. It has good corrosion resistance and low temperature toughness, good wear resistance and large hardenability, and good processability. In machining, the cutting speed of this steel is high, which is 30-50% higher than that of ordinary stainless steel. In heat treatment, it can be quenched at a relatively low temperature, and the quenching material time is usually 15 minutes. The heat treatment temperature range of this steel is 900~1100 °C, and the tempering temperature range is 220~430 °C.

AISI 1202 stainless steel has high strength, good toughness, and good work hardening property. The tensile strength is slightly higher than that of 304 stainless steel, and the hardness is slightly lower. It is a commonly used non-magnetic stainless steel for cold molds and tools, especially for cutting edges and molds operating in high-speed steel. In some contact wear applications, it has properties comparable to heat-resistant stainless steel, but it is wear resistant and relatively cheap.

AISI 1202 stainless steel can be used in a variety of manufacturing applications and is widely used in the chemical, food, pharmaceutical, and oil and gas industries, as well as in the medical and marine industries. It is often used in medical instruments, chemical containers, and marine parts. In addition, it is an excellent material known for its good corrosion resistance, high temperature oxidation resistance and low thermal expansion coefficient. Compared with the traditional 300 series stainless steels, it has better corrosion resistance, better ductility and fatigue strength, and can be used to manufacture some products that require higher levels of technical performance.