2205Duplex steel welded Tube
In recent years, the development trend of stainless steel welded pipes has been relatively good. Regardless of the scale, quality, and production technology, there have been relatively large advances, and in particular its demand areas have also gradually expanded. In addition, as the stainless stee
PRODUCT INTRODUCTION
2205 is a Ferritic Austenitic (duplex) stainless steel. It combines the most beneficial properties of many Ferritic and austenitic steels. Due to the high content of chromium and molybdenum, the steel has excellent resistance to pitting corrosion and uniform corrosion. The Transformation Microstructure ensures that the steel has good stress corrosion cracking resistance and high mechanical strength. The weldability of 2205 is very good.
Chemical composition of 2205 duplex stainless steel：
| C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr≤ | Ni≤ | Mo≤ | N≤ |
| 0.03 | 1 | 2 | 0.03 | 0.02 | 21.0-23.0 | 4.50-6.50 | 2.50-3.50 | 0.08-0.20 |
| Other | PREN | Fe≤ | Al≤ | Ti≤ | Co≤ | Nb≤ | W≤ | V≤ |
| * | allowance | - | - | - | - | - | - |
*PREN值：%Cr + 3.3x%Mo + 16x%N
2205 duplex stainless steel application industry：
Heat exchangers, pipes and pipelines required for gas and oil production, treatment and transportation
Heat exchanger and pipeline in desalination and desalination unit
Transportation of various chemicals, heat exchangers and pressure vessels
Pressure vessels, tanks and pipelines for the treatment and transportation of chloride containing solutions in the processing industry
Components requiring high corrosion fatigue strength, such as rotors, fan shafts and pressure rollers
Used for oil bunker, pipeline and consumable welding materials of chemical tanker