Main characteristics and uses of austenitic stainless steel S34778 0Cr18Ni11Nb

Introduction

S34778 0Cr18Ni11Nb is an austenitic stainless steels grade composed of chromium, nickel and niobium. It is a stable austenitic alloy which offers a combination of excellent corrosion resistance and formability in mildly corrosive environment and even in aqueous environments.

Main Characteristics

Firstly, S34778 0Cr18Ni11Nb stainless steel has excellent stress corrosion cracking resistance. The high nickel content in S34778 0Cr18Ni11Nb stainless steel provides excellent resistance to both corrosion fatigue and stress corrosion cracking. Even under tensile and environments, the steel can maintain its strength and shape making it suitable for applications exposed to corrosive environments. Secondly, S34778 0Cr18Ni11Nb stainless steel has good weldability. With its relatively lower carbon content, welding of the material does not require preheating which simplifies the entire process. In addition, the stainless steel can be welded with minimal risk of intergranular corrosion. Lastly, the alloy has great formability. S34778 0Cr18Ni11Nb stainless steel has a low yield strength and can be cold or hot worked with proper tools. This makes it very well-suited for applications requiring formability or mechanical strength.

Applications

Due to its excellent properties, S34778 0Cr18Ni11Nb stainless steel is well-suited for many applications. It is widely used for applications which require strength, formability and corrosion resistance in moderately corrosive environment such as in chemical and petrochemical plants. It can be used in reactor vessels, tubing systems, tanks, separators and other pressure components. It is also commonly used for metalworking products in flue gas desulphurization plants as well as for pump impellers and valves in offshore water treatment plants. In addition, S34778 0Cr18Ni11Nb stainless steel is used in food processing equipment, kitchen sinks, and heat exchangers, in pharmaceutical and medical equipment and in nuclear industry components.

Conclusion

In conclusion, S34778 0Cr18Ni11Nb stainless steel is an austenitic stainless steel grade composed of chromium, nickel and niobium. It is a stable alloy that offers a combination of excellent corrosion resistance and formability in mildly corrosive environment and even in aqueous environments. The steel provides good stress corrosion cracking resistance, weldability and formability properties, thus making it a suitable choice for various applications. S34778 0Cr18Ni11Nb stainless steel is used in industries such as chemical and petrochemical, food processing, pharmaceutical and medical, flue gas desulphurization, offshore water treatment, reactor vessels and nuclear industry components.

Introduction

S34778 0Cr18Ni11Nb austenitic stainless steel belongs to the austenitic stainless steel family and is commonly used in industrial applications. The material is often referred to as “super austenite”, as it features a higher degree of resistance to corrosion and heat than other austenitic stainless steels.

Composition and Properties

S34778 0Cr18Ni11Nb austenitic stainless steel is composed of Iron, Carbon, Manganese, Silicon, Phosphorus, Sulfur, Chromium, Nickel, Molybdenum and Niobium. The steel achieves a maximum hardness of HRC22 and yield strength of 210MPa.

Uses

S34778 0Cr18Ni11Nb austenitic stainless steel is often used in industrial applications, as it offers excellent corrosion resistance and elevated temperature properties, while also boasting excellent weldability and formability. Additionally, this material is ideal for use in medical applications that require high-strength structural components, as it is both non-toxic, non-magnetic and non-hardening.

Conclusion

S34778 0Cr18Ni11Nb austenitic stainless steel is an ideal choice for industrial and medical applications, as it offers a host of mechanical and corrosion properties that make it well-suited for various corrosive and elevated temperature environments. Additionally, the steel is formable and weldable, making it suitable for a wide range of applications.