S22160 duplex stainless steel is a ferritic, austenitic steel composed of iron, chromium, and nickel. It is a highly corrosion resistant material, often used in industrial and medical applications due to its low maintenance costs. The S22160 grade is an austenitic-ferritic stainless steel that provides excellent resistance to chloride pitting and crevice corrosion. It has high tensile strength, good toughness and resistance to intergranular corrosion.
S22160 duplex stainless steel has been developed to combine the advantages of both austenite and ferrite materials, giving it inherent strength, toughness, and corrosion resistance. This type of stainless steel is often used to manufacture structural parts, such as pump and valve components, as well as food industry equipment. The alloy is also suitable for applications in the oil and gas production, petrochemical industries, and nuclear power plants.
The composition of S22160 duplex stainless steel contains 22-25% chromium, up to 6% nickel, and the remainder iron. The addition of nitrogen enhances the strength of the alloy, while the nickel and molybdenum contribute to improved corrosion resistance. In addition to these alloying elements, the alloy can also contain other elements, such as manganese, silicon, or carbon.
S22160 duplex stainless steel is ferromagnetic, meaning that it can be magnetized by a magnetic field. It also has a moderate yield strength and a higher ultimate tensile strength than most austenitic stainless steels, which further enhances its performance in applications requiring strength, impact resistance, and ductility. It can be used in applications at temperatures between -40°F and 850°F.
S22160 duplex stainless steel is a cost-effective material that is resistant to stress corrosion cracking (SSC) and temper embrittlement. Its temperature compatibility and tolerance to chloride ions make it useful in areas where corrosion is expected. Additionally, it offers increased tool life when machining and welding, allowing for high productivity and efficiency in industrial applications.
S22160 duplex stainless steel is a valuable material in the stainless steel family due to its unique combination of strength, resistance to corrosion and temperature, and affordability. It offers a wide range of applications in a variety of industries due to its ability to withstand harsh environments and corrosive chemicals.
