Austenitic Stainless Steel S30458 (0Cr19Ni9N): General and Application
The austenitic stainless steel S30458 (0Cr19Ni9N) has excellent corrosion resistance due to its high content of chromium and nickel, as well as its ability to form a passive oxide layer on its surface. The S30458 stainless steel is commonly used in a variety of applications, such as for fabricating components for the food and beverage industry, for heat exchanger components, for centrifugal pumps, for chemical process industry, and for condenser applications.
General Characteristics
The S30458 stainless steel is an austenitic stainless steel which is composed of 19% chromium and 9% nickel. It is also known by its grade name 0Cr19Ni9N. This stainless steel provides excellent corrosion resistance compared to other grades of stainless steel due to its high level of chromium and nickel as well as its ability to form a passive oxide layer on its surface. This passive oxide layer protects the steel from corrosion by rejecting any further oxidation. This alloy is also nonmagnetic and has a low thermal expansion coefficient.
The S30458 stainless steel has a range of mechanical properties, including an ultimate tensile strength of 650 ~ 850MPa, an immediate yield strength of 220MPa and a 3.2% permanent yield strength of 440MPa. The Hardness of this steel is between 210 and 250HB. Furthermore, the elongation of this steel is 45%.
Applications
The S30458 stainless steel is commonly used in a variety of applications due to its excellent corrosion resistance which is highly valued.
Food and Beverage Industry. The S30458 stainless steel is highly corrosion resistant, making it a suitable material for fabricating components of food and beverage processing equipment like mixers, tanks, and pipes. It is also resistant to the harsh alkaline and acidic environments and can withstand the high temperatures often experienced during these process.
Heat Exchangers. This grade of steel is also used for heat exchanger components as it can withstand the high temperatures of these applications and provide excellent corrosion resistance in the presence of aggressive media.
Centrifugal Pumps. Pump components like shafts and impellers are generally made from the S30458 stainless steel as it has superior corrosion resistance and retains its strength over a wide temperature range.
Chemical Process. This steel grade is also highly resistant to many of the acids, bases and solvents used in process industry and can handle the high temperatures of these processes as well as the oxidizing and reducing conditions. It also has superior corrosion resistance and is easily fabricated making it suitable for chemical process industry.
Condensers. This grade of stainless steel is highly resistant to corrosion due to its extended service in condensing applications. This makes it an ideal material for fabricating condenser tubes, headers, shells and other condenser components due its excellent corrosion resistance performance.
Conclusion
The austenitic stainless steel S30458 (0Cr19Ni9N) has excellent corrosion resistance due to its high content of chromium and nickel, as well as its ability to form a passive oxide layer on its surface. This grade of steel has a broad range of mechanical properties and is resistant to many of the acids, bases and solvents used in process industry. It is commonly used in a variety of applications, such as for fabricating components in the food and beverage industry, for heat exchanger components, for centrifugal pumps, for chemical processes, and for condensers. This makes it an ideal choice for these types of applications.
