2205 TISCO S32205 Laser Cutting Duplex Steel Sheet / Cold Rolled DS Plate
Brand Name:TISCO ,JIU STEEL
Certification:SGS ISO
Model Number:S32205 S31803
Minimum Order Quantity:2 tons
Delivery Time:7 days
Payment Terms:L/C, T/T
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DS Plate 2205 TISCO S32205 Plate Laser Cutting Duplex Steel Properties
DS Plate 2205 TISCO S32205 Plate Laser Cutting
Duplex stainless steel 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 steel are in most cases, tougher than ferritic stainless steel. Strengths of duplex stainless steels can in some cases be double that for austenitic stainless steels.
Whilst duplex stainless steel are considered resistant to stress corrosion cracking, they are not as resistant to this form of attack as ferritic stainless steel. However, the corrosion resistance of the least resistant Duplex stainless steel is greater than that for the most commonly used grades of stainless steel, i.e. 304 and 316.
Duplex stainless steel are also magnetic, a property that can be used to easily differentiate them from common austenitic grades of stainless.
ASTM A240/A240M
Property data given in this document is typical for bar products covered by EN 10088-3:2005. ASTM, EN or other standards may cover products sold. It is reasonable to expect specifications in these standards to be similar but not necessarily identical to those given in this datasheet.
Alloy Designations
Due to excellent corrosion resistance and high strength, the most widely used duplex stainless steel is 2205. The name 2205 comes from a typical composition of 22% Chromium and 5% Nickel. Other designations for 2205 are given in the table below.
Table 1. Some standard designations for duplex stainless steel alloys
| Euronorm | UNS | BS | En | Grade |
| 1.4462 | S31803 S32205 | 318S13 | - | 2205 |
| 1.4507 | S32520 S32550 | - | - | UR52N+ |
Chemical Composition of Duplex stainless steel
Table 2. Typical chemical composition for two duplex stainless steel alloys
| % | 2205 | UR52N+ |
| C | 0-0.03 | 0.03 max |
| Mn | 2.0 | 1.5 |
| Si | 1.0 | 0.8 |
| P | 0-0.03 | 0.035 |
| S | 0-0.02 | 0.02 |
| Cr | 21-23 | 24-26 |
| Mo | 2.5-3.5 | 3.0-5.0 |
| Ni | 4.5-6.5 | 5.5-8.0 |
| N | 0.08-0.2 | 0.2-0.35 |
| Cu | - | 0.5-3.0 |
Properties of Duplex stainless steel
Mechanical Properties of Duplex stainless steel
Table 3. Typical mechanical properties of two duplex stainless steel alloys
| Grade | 2205 | UR52N+ |
| Tensile Strength (MPa) | 620 | 770 |
| Proof Stress 0.2% (MPa) | 450 | 550 |
| Elongation A5 (%) | 25 | 25 |
Physical Properties of Duplex stainless steel
Table 4. Typical physical properties of two duplex stainless steel alloys
| Property | 2205 | UR52N+ |
| Density (g.cm3) | 7.805 | 7.810 |
| Modulus of Elasticity (GPa) | 200 | 205 |
| Electrical Resistivity (Ω.m) | 0.085x10-6 | 0.085x10-6 |
| Thermal Conductivity (W/m.K) | 19 at 100°C | 17 at 100°C |
| Thermal Expansion (m/m.K) | 13.7x10-6 to 100°C | 13.5x10-6 to 200°C |
Corrosion Resistance of Duplex stainless steel
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Duplex stainless steel are extremely corrosion resistant. They have high resistance to intergranular corrosion. Even in chloride and sulphide environments, Duplex stainless steelexhibit very high resistance to stress corrosion cracking.
The super duplex grades are even more resistant to corrosion.
Heat Resistance of Duplex stainless steel
The high chromium content of Duplex stainless steel that p rotects against corrosion, causes embrittlement at temperatures over about 300°C.
At low temperatures duplex stainless steels have better ductility than the ferritic and martensitic grades. Duplex grades can readily be used down to at least -50°C.
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2205 TISCO S32205 Laser Cutting Duplex Steel Sheet / Cold Rolled DS Plate
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