Main characteristics and uses of austenitic stainless steel S34771 1Cr19Ni11Nb

Austenitic Type 304 stainless steel S34771 (1Cr19Ni11Nb) ist a high alloy austenitic stainless steel which is often referred to as an austenitic chrome nickel steel. This alloy has a unique combination of chemical and physical features, including a higher heat and corrosion resistance than those of traditional stainless steel. It is also a formable, weldable and machinable alloy with excellent strength properties for use in a variety of applications in industries such as aerospace, medical, chemical, industrial and food processing.

S34771 is an austenitic stainless steel, meaning it is both ductile and corrosion resistant in a variety of environments. It has a wide range of formability, weldability, machinability and strength characteristics, making it ideal for use in many industries. It has a number of chemical makes up including chromium, nickel and nitrogen which contribute to its resistance to corrosion and oxidation. The nitrogen also helps to provide additional strength and protection against wear.

A key attribute of S34771 is its higher heat resistance making it an excellent choice for applications that involve high temperatures. This stainless steel can exceed temperatures up to 1400°F (760°C). This higher heat resistance also increases its strength and toughness when it is used in applications such as pipe and tube production, petrochemical processing, chemical process equipment and pressure vessels. Additionally, it has very good handling properties in high heat which allows for fabrication with little to no distortion.

S34771 also has excellent resistance to general corrosion making it ideal for use in aggressive environments such as chemical processing, off-shore oil exploration and production, and marine applications. Additionally, its good formability and weldability attributes make it suitable for use in a variety of fabrication applications such as petrochemical and chemical processing, gas and oil storage, filtration equipment and components for food processing equipment.

It is also a popular choice for applications in a variety of industries such as mining, aerospace, armor plating and general engineering applications. Specifically, S34771 is popular in aerospace applications due to its high temperature resistance, strength and formability, making it an excellent choice for aircraft components such as fuel loading systems and control surfaces where lightweight and strong components and parts are required. Additionally, its high corrosion resistance, toughness and formability properties make it suitable for use in armor plating and other military applications.

Overall, S34771 (1Cr19Ni11Nb) is an exceptional austenitic stainless steel, offering excellent strength and resistance to corrosion, oxidation and high temperatures. Its ability to retain excellent strength, hardness and formability while withstanding high-temperatures makes it an excellent choice for use in applications that require both strength and heat resistance. Additionally, its weldability, machinability and good formability makes it suitable for use in a variety of fabrication processes.

S34771 austenitic stainless steel (1Cr19Ni11Nb) is a ferritic stainless steel with added niobium (Nb) as a stabilizing element. This steel has excellent thermal resistance, good mechanical strength and superior stress corrosion resistance. It also retains excellent strength, ductility and toughness at cryogenic temperatures.

The addition of niobium to S34771 increases the alloy’s ability to resist intergranular corrosion and chloride stress corrosion cracking over standard austenitic grades. This grade is resistant to a wide range of corrosive agents such as organic and inorganic acids, salts, and chloride solutions. The Nb stabilised austenitic structure of the material prevents sensitisation and improves resistance to Chloride Stress Corrosion Cracking (CSCC) and Intergranular Corrosion (IGC).

S34771 is widely used in the oil and gas, chemical, energy and food processing industries. It is most commonly used for pumps, valves and piping systems due to its good corrosion, abrasion and erosion resistance. Additionally, it is used in the manufacture of tanks and storage vessels. This steel also has applications in automotive, aerospace and marine industries.

Other common applications of S34771 steel include architectural fabrications, kitchen and bathroom accessories, fasteners, and bearings. Due to its superior corrosion resistance, it is also used in the manufacture of medical instruments and devices.

In conclusion, S34771 is a high performance stainless steel with excellent mechanical and corrosion properties. With its superior strength and toughness, it is an excellent choice for a variety of applications in the oil, gas, and chemical industries. Additionally, this stainless steel is a cost-effective material for applications in the automotive, aerospace and medical markets.