2205 (UNS S32305) is a nitrogen-alloyed duplex stainless steel, with a chemical composition containing 22-23% chromium, 3-3.5% molybdenum, and 4.5-6.5% nickel. The high chromium and molybdenum content provide good corrosion resistance, and the overall combination allows this alloy to be stronger and tougher than most standard austenitic steels. 2205 duplex stainless steels maintains good weldability in their thickest sections, and they are much more resistant to chloride stress corrosion cracking and pitting than standard austenitic steels like 316L or 317L. To get more news about 2205 duplex stainless steel, you can visit stainless-steel-supplier official website.
With nearly twice the yield strength of other comparable austenitic grades, 2205 duplex steel products can withstand higher pressures and more corrosive environments with less material, saving on weight and fabrication costs. This makes them ideal for chemical processing and storage pressure vessels and tanks, or high chloride environments for marine applications.
United Performance Metals stocks 2205 duplex stainless steel plate in thicknesses from 0.125" to 1.000", with FirstCut+ Processing services available. Similar to other duplex stainless steels, this grade of material can suffer from hydrogen embrittlement at temperatures over 300C. To solve this issue, 2205 duplex steel plate should be solution annealed at 1900°F (1038°C) minimum up to 2012°F (1100°C), followed by a water quenching for rapid cooling. While it can be work hardened, thermal treatments will not harden this grade of stainless steel.
The high strength of duplex 2205 makes it difficult to machine. Strong, rigid machines with low vibration are recommended, and carbide tooling will require lower feed speeds. 2205 plate is easily welded, but care should be taken to use appropriate filler materials (such as 2209, which is over-alloyed with additional nickel) to prevent excess ferrite formation.