Austenitic stainless steel S34771 1Cr19Ni11Nb chemical composition

Austenitic stainless steel is an iron-based alloy with a main metallic element of chromium. It also typically contains nickel, manganese, and nitrogen, and is a popular choice in stainless steel applications.

The S34771 austenitic stainless steel is a high-alloy variant of 1Cr19Ni11Nb. It is composed of 1.0% of carbon, 19.0-21.0% of chromium, 11.0-13.0% of nickel and 0.2-0.5% of molybdenum. Nitrogen and nitrogen-containing alloying elements are also included.

The S34771 austenitic stainless steel is highly corrosion resistant due to its chromium and nickel composition. The chromium provides a passive film which prevents the steel from rusting. The nickel provides further resistance against corrosion, helping the alloy to remain durable in adverse environments. The alloy also contains some nitrogen-containing additions which increase the strength of the steel and improve its machinability.

The S34771 austenitic stainless steel also has good formability and is relatively easy to work with. It can be cold formed, hot formed, and machined. The alloy is also resistant to thermal shock and can withstand high temperatures.

The S34771 austenitic stainless steel has numerous applications. Its high corrosion resistance and strength make it suitable for use in the food, medical, and chemical industries. Its formability makes it good for applications in transport and engineering. It is also used for valve bodies, nuts and bolts, and other parts in marine and automotive industries.

Overall, S34771 austenitic stainless steel is a strong and durable alloy with many uses. Its corrosion resistance and formability make it a popular choice for many applications across diverse industries. The alloy has good mechanical properties and can withstand extreme temperatures. This makes it a great choice for many industrial and everyday applications.

S34771 stainless steel, also known as 1Cr19Ni11Nb, is a duplex ferrite-austenite austenitic stainless steel. It has excellent mechanical properties such as good ductility, excellent formability, good weldability, superior strength and excellent corrosion resistance.

S34771 is composed of C (max): 0.03, Si (max): 0.3, Mn (max): 1.0, P (max): 0.045, Cr: 18.0-20.0, Mo: 2.0-2.5, Ni: 8.0-10.0, Nb (max): 0.1, Cu (max): 0.5. Its chromium, molybdenum and nitrogen content makes for superior corrosion resistance. The increased alloy content in S34771 gives it improved creep and stress-rupture properties.

S34771 stainless steel is used in a variety of applications. This stainless steel is often used in corrosive or high temperature atmospheres, such as chemical processing, power plants and heat exchangers. It is also used in aviation and turbine components. S34771 can also be used in certain food processing and automotive applications.

S34771 stainless steel has excellent wear and abrasion resistance and has superior toughness. Its superior strength at elevated temperatures means it can be used in service up to 800°C, making it suitable for high-temperature applications.

S34771 stainless steel does have some limitations, including higher cost and less resistance to chloride stress corrosion cracking and crevice corrosion than other austenitic grades. The steel is susceptible to sensitization and may cause pitting corrosion in certain conditions.

Overall, S34771 stainless steel is a strong, corrosion resistant steel with excellent strength and corrosion resistance. Its alloy content makes it well suited to many industrial and high temperature applications, as well as food processing and automotive applications. Its limitations include higher cost and a susceptibility to corrosion in certain conditions.