Physical Properties of 1Cr18Ni5Mn8N (AISI 1202) Chromium-Nickel-Manganese-Nitrogen Austenitic Stainless Steel
Introduction
1Cr18Ni5Mn8N (AISI 1202) is a type of stainless steel known as austenitic and it is also known as AISI 1202 and X2CrNi12N21. Austenitic stainless steel is one of the three most widely used types of stainless steel, which are famed for their excellent corrosion resistance, high temperature strength, and good ductility. This type of stainless steel has a high carbon content and a low nickel content and is often referred to as a “super stainless steel” because of the metal’s exceptional strength and resistance to corrosion and wear. 1Cr18Ni5Mn8N, in particular, is an austenitic stainless steel that is typically used for applications where there is a demand for increased mechanical strength and stress resistance.
Chemical Composition
The chemical composition of 1Cr18Ni5Mn8N is as follows:
Element Content (wt.%)
Carbon 0.07-0.12
Silicon ≤ 0.6
Manganese 1.3-1.7
Phosphorus ≤ 0.015
Sulfur ≤ 0.03
Chromium 17-19
Nickel 5-7
Nitrogen 0.2-0.5
Mechanical Properties
The mechanical properties of 1Cr18Ni5Mn8N stainless steel are dependent on the temperature of the metal, but generally, at room temperature, the following values can be expected for this material:
Tensile strength ≥ 590 MPa
Yield strength ≥ 315 MPa
Elongation ≥ 40 %
Hardness (Brinell) ≥ 100 HB
Temperature Resistance
Austenitic steels such as 1Cr18Ni5Mn8N generally have good temperature resistance and are not greatly affected by temperatures up to 700°C. This steel also has high resistance to oxidation and corrosion at elevated temperatures, making it useful for a range of applications such as those in power plants and aerospace.
Conclusion
1Cr18Ni5Mn8N is a type of austenitic stainless steel that offers increased mechanical strength and stress resistance, making it desirable for a variety of applications. It has a high carbon content and a low nickel content, and has good temperature resistance up to 700°C. 1Cr18Ni5Mn8N has a higher tensile strength and yield strength than other similar stainless steels, making it an excellent choice for high-stress environments. It is also more resistant to corrosion and oxidation than other stainless steels.
