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2205 Duplex UNS S31803
2205 Duplex stainless steel, which has a microstructure that contains both austenite and ferrite phases, and has an excellent combination of strength and corrosion resistance.
In the annealed condition 2205 Duplex has twice the annealed strength of a typical austenitic stainless steel, like 304 and 316 Stainless.
Applications: 2205 duplex stainless steels have been used in oil and gas, pumps and pump parts, valves, chemical and paper manufacturing.
|Silicon||max||1.00%||Chromium||20.50 - 23.50%|
|Iron||Balance||Nitrogen||0.08 - 0.20%|
The following table is for reference only, many factors can affect the corrosive resistance, a corrosion test for each application should be applied.
|Phosphoric acid||Moderate||Acetic Acid||Good|
|Sodium Hydroxide||Moderate||Sea Water||Moderate|
|Salt Spray||Excellent||Nitric Acid||Good|
- Heat to 1850/2050 F (1010/1121c) and quench in water. Brinell hardness approximately Rockwell 20 C.
- Cannot be hardened by heat treatment. Cold working this alloy increases its strength and hardness.
- Will be in between that of 316 and Nitronic 50.
- Shapes Manufactured:
- Flat Bars, Square Bars, Round Bars, Rings, Hollows, Discs, Blocks and special Shapes. Send us a drawing to see how we can save you material and Machining time!
The information in this data sheet is for information only and should not be used for engineering.
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