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Applications & Uses of Duplex Stainless Steels

The two-phase microstructure of duplex stainless steel, which comprises ferritic and austenitic stainless steel grains, gives the material its name. The ultimate result is a microstructure made up of around 50% austenite and 50% ferrite. Duplex stainless steel is a kind of stainless steel that combines austenitic and ferritic stainless steel grains. “Duplex” refers to the two-phase microstructure of ferritic and austenitic steel grains.

Uses of Duplex Stainless Steels

Duplex systems are used in many communications networks to give simultaneous communication in both ways between two connected parties or to provide a reverse approach for monitoring and remote modification of field equipment.

In the food and catering industry, stainless steel is used to create kitchen equipment, cookware, and cutlery. Knives, for example, are made from stainless steel grades that are less ductile. More ductile grades are used in grills, cookers, saucepans, and sinks.

Duplex Steel S32205 Seamless Tubes are frequently used in gas turbine engine high-temperature parts that require high strength, high temperature creeps resistance, fatigue life, phase stability, and oxidation and corrosion resistance.

Due to its outstanding mechanical properties and strong corrosion-resistance, duplex stainless steel is commonly used in industrial applications such as the fabrication of seawater heat exchangers and chemical containers for use in high-concentration chloride environments.

In addition to the pulp and paper sector, duplex stainless steel is used in mining and nuclear power plants. Steel is a popular building material, and its aesthetic and structural qualities have led to its use in a number of high-profile architectural projects.

Applications of Duplex Stainless Steels

  • Chemical Process
  • Oil & Gas
  • Petrochemical
  • Pharmaceutical
  • Sea Water
  • Water Desalination
  • Biomass
  • Mining
  • Utilities
  • Nuclear Power
  • Solar Power
  • Geothermal
  • LNG (Liquefied Natural Gas)

Chemical Process

2205 is the most widely used duplex stainless steel, because of its excellent corrosion resistance and high strength. The number 2205 refers to the typical composition of 22 percent chromium and 5 percent nickel. This stainless steel grade differs from 2205 stainless steel in that it includes copper.

Oil & Gas

This has opened up a huge market for stainless steel like Duplex and Super Duplex. Scrubbers, process funneling frameworks, separators, pumps, X-mas tree segments, manifolds, flowlines, and pipelines conveying corrosive fluids and gas are all becoming more common.

Petrochemical

Petrochemicals are primarily used as a source of energy. The development of a number of petroleum-based energy sources was aided by the burning of crude oil. Petroleum has long been used for lighting, heating, and transportation, as well as being the most efficient internal combustion engine fuel.

Sea Water

Seawater pumps made of duplex stainless steel are becoming more popular, especially for offshore oil and gas platforms, floating production, storage, and offloading (FPSO) vessels, and desalination plants. Super duplex stainless steel offers the best mix of material properties for these applications.

Nuclear Power

Although most nuclear power is alloyed, pure uranium metal has been employed in numerous metal fuels. Nuclear power has used uranium aluminium, uranium zirconium, uranium silicon, uranium molybdenum, and uranium zirconium hydride (UZrH). In nuclear power, nickel, chromium, cobalt, and molybdenum are all employed. Although it was built for high-temperature gas reactors, it may also be utilized in molten salt and liquid metal reactors.

Solar Power

Solar energy is just the light and heat emitted by the sun. Photovoltaic cells are solar cells that turn sunlight into electricity. The sun’s heat is used to create hot water or steam in solar thermal technology. Water can be taken from wells, electricity can be created, food may be cooked and dried, and solar energy can be used to heat water. Among the equipment on sale are water heaters, windmills, solar cookers, photovoltaic lamps and pumps, improved stoves, and dung gas plants. Power is generated using solar cells or heat engines.

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