Duplex Steel: The Material with High Strength and Corrosion Resistance
Duplex Steel: An Overview
Duplex steel is a type of stainless steel that is characterized by its high strength and excellent corrosion resistance. It is a two-phase microstructure that consists of both austenitic and ferritic grains. This unique combination of microstructures results in a material with superior properties when compared to traditional austenitic and ferritic steels.
The element composition of duplex steel varies depending on the grade of the material. Generally, it consists of around 22-26% chromium, 4-7% nickel, and 0.2-0.3% nitrogen. Other elements such as molybdenum, copper, and tungsten may also be added to improve specific properties of the material.
Mechanical Properties of Duplex Steel
Duplex steel has excellent mechanical properties that make it an ideal material for a wide range of applications. The following table shows the typical mechanical properties of duplex steel:
Grade Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Hardness (HB)
2205 620-880 450 25-30 293
2507 750-1000 550 25-30 310
As you can see, duplex steel has a high tensile strength and yield strength, which makes it suitable for use in high-stress applications. It also has a good elongation percentage, which means that it can be formed into various shapes without cracking or breaking. Finally, its hardness is comparable to that of other types of stainless steel, making it resistant to wear and tear.
Products Made from Duplex Steel
Duplex steel is used to manufacture a wide range of products due to its excellent properties. Some of the most common products made from duplex steel include pipe fittings, pipes, flanges, plates, bars, and more.
Pipe Fittings: Duplex steel pipe fittings are used in a variety of industries, including oil and gas, chemical, and petrochemical. They are available in a range of sizes and types, including elbows, tees, reducers, and more.
Pipes: Duplex steel pipes are used in a range of applications, including offshore oil and gas production, chemical processing, and more. They are available in various sizes and types, including seamless and welded.
Flanges: Duplex steel flanges are used to connect pipes or fittings together. They are available in various sizes and types, including slip-on, weld-neck, and more.
Plates: Duplex steel plates are used in a range of industries, including pulp and paper, chemical processing, and more. They are available in various thicknesses and sizes.
Bars: Duplex steel bars are used in a range of applications, including marine, chemical processing, and more. They are available in various sizes and types, including round, square, and hexagonal.
Applications of Duplex Steel Products
Duplex steel products are used in a wide range of applications due to their superior properties. Some of the most common applications include:
Oil and Gas: Duplex steel is used in the oil and gas industry due to its excellent resistance to corrosion and high strength. It is used to manufacture a range of products, including pipes, fittings, and flanges.
Chemical Processing: Duplex steel is used in the chemical processing industry due to its excellent resistance to corrosion and high strength. It is used to manufacture a range of products, including pipes, fittings, and plates.
Pulp and Paper: Duplex steel is used in the pulp and paper industry due to its excellent resistance to corrosion and high strength. It is used to manufacture a range of products, including plates, bars, and more.
Marine: Duplex steel is used in the marine industry due to its excellent resistance to corrosion and high strength. It is used to manufacture a range of products, including bars and plates.
Construction: Duplex steel is used in the construction industry due to its high strength and resistance to corrosion. It is used to manufacture a range of products, including pipes, fittings, and more.
SSM: A Leading Manufacturer and Supplier of Duplex Steel Products
SSM is a leading manufacturer and supplier of duplex steel products. With over 20 years of experience in the industry, we have built a reputation for delivering high-quality products and exceptional customer service.
We offer a wide range of duplex steel products, including pipe fittings, pipes, flanges, plates, bars, and more. Our products are available in various grades and specifications to meet the needs of our customers.
At SSM, we are committed to providing our customers with the best possible service. We work closely with our customers to understand their needs and provide them with customized solutions that meet their specific requirements. We also offer fast and reliable delivery to ensure that our customers receive their products on time and in good condition.
Conclusion
Duplex steel is an excellent material that offers superior properties when compared to traditional austenitic and ferritic steels. It is used to manufacture a wide range of products, including pipe fittings, pipes, flanges, plates, bars, and more. Its excellent mechanical properties and resistance to corrosion make it an ideal material for use in a wide range of applications. At SSM, we are committed to providing our customers with high-quality duplex steel products and exceptional customer service. Contact us today to learn more about our products and services.