Composition of S32205/2205 duplex stainless steel
S32205/2205 duplex stainless steel is mainly composed of two phases of ferrite and austenite, and its chemical composition and content is very significant.
1、the content and role of each component
Carbon (C) Content is usually no more than 0.03%.
Low carbon content can effectively reduce the risk of intergranular corrosion, improve corrosion resistance.
Silicon (Si) content is generally around 1.0%.
Enhances the oxidation resistance and high temperature strength of stainless steel.
Manganese (Mn) About 2.0%.
To improve the strength and toughness of the material has a certain effect.
Phosphorus (P) and sulfur (S)
Strictly controlled at very low levels, usually no more than 0.03% and 0.02% respectively.
Ensure material purity and good welding performance.
Chromium (Cr) content of about 22%.
As an important alloying element, it gives the material excellent corrosion resistance and performs well in oxidizing environments.
Nickel (Ni) Contains approximately 5.5%.
In synergy with chromium, it stabilizes the austenite phase and increases toughness and corrosion resistance.
Molybdenum (Mo) Approximately 3.0%.
Can further enhance the pitting and crevice corrosion resistance of stainless steel.
Nitrogen (N) content of about 0.14 - 0.20%.
In the duplex stainless steel plays a key role in stabilizing the austenite phase, improve strength and corrosion resistance.
2、the advantages of composition collocation
The scientific collocation of these components, so that S32205/2205 duplex stainless steel both ferritic stainless steel and austenitic stainless steel advantages, showing high strength, good toughness and excellent corrosion resistance.
1、the content and role of each component
Carbon (C) Content is usually no more than 0.03%.
Low carbon content can effectively reduce the risk of intergranular corrosion, improve corrosion resistance.
Silicon (Si) content is generally around 1.0%.
Enhances the oxidation resistance and high temperature strength of stainless steel.
Manganese (Mn) About 2.0%.
To improve the strength and toughness of the material has a certain effect.
Phosphorus (P) and sulfur (S)
Strictly controlled at very low levels, usually no more than 0.03% and 0.02% respectively.
Ensure material purity and good welding performance.
Chromium (Cr) content of about 22%.
As an important alloying element, it gives the material excellent corrosion resistance and performs well in oxidizing environments.
Nickel (Ni) Contains approximately 5.5%.
In synergy with chromium, it stabilizes the austenite phase and increases toughness and corrosion resistance.
Molybdenum (Mo) Approximately 3.0%.
Can further enhance the pitting and crevice corrosion resistance of stainless steel.
Nitrogen (N) content of about 0.14 - 0.20%.
In the duplex stainless steel plays a key role in stabilizing the austenite phase, improve strength and corrosion resistance.
2、the advantages of composition collocation
The scientific collocation of these components, so that S32205/2205 duplex stainless steel both ferritic stainless steel and austenitic stainless steel advantages, showing high strength, good toughness and excellent corrosion resistance.