Beneficial Key Properties and Uses of 2205 Duplex Stainless Steel
The world uses a duplex, which is constructed of two metal classes. Nickel, chromium, and ferrous are used in large quantities to create the Duplex 2205 Pipe. Different media don’t cause these pipes to corrode or erode. This grade’s products are neither entirely austenitic nor fully ferritic. It is simple to produce and machine duplex 2205 tube. These tubes exhibit outstanding resistance to pitting caused by different acids, sulfide ion cracking, and crevice corrosion. Superior strength and increased hardness are built into the duplex stainless steel pipe’s construction.
These pipes have a minimum yield strength of 65Ksi and a minimum tensile strength of 95Ksi. In certain uses, they might be 15% lengthened. Duplex is a metal alloy that is used all over the world and is composed of two metal grades. Nickel, chromium, and ferrous are present in significant quantities in the composition of the Duplex 2205 Pipe. These pipes are resistant to corrosion and erosion in many media. This grade’s products are neither entirely ferritic nor totally austenitic.
Beneficial Key Properties
In most settings, Duplex 2205 outperforms 316 and 316L in terms of corrosion resistance due to its high chromium, molybdenum, and nitrogen content.
Even in oxidizing and acidic conditions, the presence of chromium, molybdenum, and nitrogen offers strong resistance to pitting and crevice corrosion.
Resistant to temperatures of up to 302°F (150°C) and chloride stress corrosion cracking.
The Duplex 2205 performs well in caustic settings due to the presence of ferrite.
The Duplex 2205 stainless steel exhibits good oxidation resistance at high temperatures, just like other duplex stainless steel.
2205 Duplex Stainless Steel Uses
Due to its superior strength, longevity, and corrosion resistance, UNS S32205 is frequently utilized in industrial and commercial applications. Duplex 2205 Pipe type of steel is used for structural parts in piping systems, tanks, pressure vessels, valves, ships, boats, well-drilling equipment, and other components. It is additionally applied to pump shafts and other extremely corrosive environments. Due to its outstanding resistance to pitting and stress-corrosion cracking, it is especially well suited for many extremely demanding saltwater applications. It is suited for temperatures above 300°F and cryogenic temperatures in addition to these purposes. In contrast to other stainless steels, due to their duplex nature, they can be easily molded into bankable shapes and is inexpensive to weld.
2205 Duplex Stainless Steel Chemical Composition
The elements that makeup UNS S32205 are 22% chromium, 3% molybdenum, 5-6% nickel, and 45-50% iron. Trace amounts of manganese, silicon, phosphorus, sulfur, cobalt, copper, and nitrogen are also present. By combining these components, it becomes exceptionally robust and corrosion-resistant. Furthermore, because of its high chromium content, which provides good heat resistance, it is perfect for use in high-temperature applications like boilers or furnaces.
