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Model No: 1.4462
Duplex Stainless Steel 1.4462
Duplex stainless steels are extremely corrosion resistant, work hardenable alloys. Their microstructures consist of a mixture of austenite and ferrite phases.
Delivery :
FOB
minimum order :
100 kilograms
Supply Ability :
5000Tonkilograms / Month
Stock Time :
7-10Day
Country of Origin :
CHINA
Quantity :
Duplex Stainless Steel 1.4462(X2CrNiMoN 22-5-3) Material
Duplex stainless steels are extremely corrosion resistant, work hardenable alloys. Their microstructures consist of a mixture of austenite and ferrite phases. As a result, duplex stainless steels display properties characteristic of both austenitic and ferritic stainless steels. This combination of properties can mean some compromise when compared with pure austenitic and pure ferritic grades.
Duplex stainless steels are in most cases, tougher than ferritic stainless steels. Strengths of duplex stainless steels can in some cases be double that for austenitic stainless steels.
Whilst duplex stainless steels are considered resistant to stress corrosion cracking, they are not as resistant to this form of attack as ferritic stainless steels. However, the corrosion resistance of the least resistant duplex stainless steels is greater than that for the most commonly used grades of stainless steels, i.e. 304 and 316.
Duplex steels are also magnetic, a property that can be used to easily differentiate them from common austenitic grades of stainless.
Property data given in this document is typical for covered by EN 10088-1-2005 standard.
Duplex Stainless Steel 1.4462 Material Chemical Composition Table
| Chemical Element | % Present |
|---|---|
| Carbon (C) | 0.0 - 0.03 |
| Chromium (Cr) | 21.00 - 23.00 |
| Manganese (Mn) | 0.0 - 2.00 |
| Silicon (Si) | 0.0 - 1.00 |
| Phosphorous (P) | 0.0 - 0.03 |
| Sulphur (S) | 0.0 - 0.02 |
| Nickel (Ni) | 4.50 - 6.50 |
| Nitrogen (N) | 0.10 - 0.22 |
| Molybdenum (Mo) | 2.50 - 3.50 |
| Iron (Fe) | Balance |
Duplex Stainless Steel 1.4462 Material Properties
| Physical Property | Value |
|---|---|
| Density | 7.805 g/cm³ |
| Thermal Expansion | 13.7 x10^-6 /K |
| Modulus of Elasticity | 200 GPa |
| Thermal Conductivity | 19.0 W/m.K |
| Electrical Resistivity | 0.85 x10^-6 Ω .m |
Duplex Stainless Steel 1.4462 Material Chemical Composition Applications
Duplex stainless steels are typically used in:
- Chemical processing, transport and storage
- Oil and gas exploration and offshore rigs
- Oil and gas refining
- Marine environments
- Pollution control equipment
- Pulp & paper manufacturing
- Chemical process plant
Corrosion Resistance
Duplex stainless steels are extremely corrosion resistant. They have high resistance to intergranular corrosion. Even in chloride and sulphide environments, duplex stainless steels exhibit very high resistance to stress corrosion cracking.
The super duplex grades are even more resistant to corrosion.
Heat Treatment
Duplex stainless steels cannot be hardened by heat treatment. They can however be work hardened.
Solution treatment or annealing can be done by rapid cooling after heating to around 1100°C.
Weldability
Duplex stainless steels have good weldability. All standard welding processes can be used. They are not quite as easily welded as the austenitic grades but low thermal expansion in duplex grades reduces distortion and residual stresses after welding. The recommended filler material for 2205 stainless steel is 2209.
Lork Group – a leading supplier of Duplex Stainless Steel
Lork Group is an supplier in the supply of Duplex Stainless Steel and other high quality specialist engineering alloys.
To buy or learn more about S32750 contact us now, or fill in the enquiry form on the left hand side and we will be in touch shortly.
