2205 Duplex steel S31803 plate sheet coil made in SWEDEN OUTOKUMPU origin

2205 Duplex steel is a type of austenitic-ferritic stainless steel that contains a combination of chromium, molybdenum, and nickel in its composition. It is also known as UNS S31803 or simply Duplex 2205. The seamless blend of these metals provides the alloy with excellent mechanical properties and enhances its resistance to corrosion, making it ideal for use in various industrial applications.

2205 Duplex steel S31803 plates, sheets, and coils are available in various international standards such as ASTM, ASME, AISI, and DIN. These standards ensure consistency in chemical and physical properties and toughness, enabling their usage in different industrial applications worldwide.

The production process of 2205 Duplex steel S31803 plates, sheets, and coils involves several steps, including melting, refining, rolling, and heat treatment. The melting process is carried out using an electric arc furnace followed by refining through a ladle furnace. The refined steel is then cast into a continuous casting machine, rolled, and heat-treated at various temperatures to optimize its performance properties.

Chemical Composition

The chemical composition of 2205 Duplex steel S31803 plates, sheets, and coils includes a blend of elemental metals, including chromium, molybdenum, nickel, and nitrogen. The combination of these metals varies depending on the specific application and desired performance properties. The composition typically ranges from:

- Chromium (Cr) - 22-23%
- Molybdenum (Mo) - 3-3.5%
- Nickel (Ni) - 4.5-6.5%
- Nitrogen (N) - 0.14-0.2%
- Iron (Fe) - Balance

Physical Properties

2205 Duplex steel S31803 plates, sheets, and coils have excellent mechanical and physical properties suitable for various industrial applications. Some of the physical properties of 2205 Duplex steel S31803 plates, sheets, and coils are:

- Density - 7.8 g/cm³
- Melting Point - 1400-1450°C
- Thermal Expansion - 13.7 μm/m °C
- Thermal Conductivity - 18.0 W/m-K
- Electrical Resistivity - 78.0 μohm/cm

Applications

2205 Duplex steel S31803 plates, sheets, and coils find usage in various industrial applications due to their excellent mechanical and physical properties and superior corrosion resistance. Some of the industries that use this alloy include:

- Oil and Gas
- Chemical Processing
- Power Generation
- Water Treatment
- Pulp and Paper
- Food Processing