Duplex Stainless Steel
2205 - UNS S32205/EN 1.4462
General Characteristics:
Standard Duplex Stainless steel 2205 (UNS S32205) is the most widely used duplex stainless steel comprising almost 80% of duplex stainless steel market. This alloy provides better corrosion resistance than 316L in various environments and has an added advantage of higher yield strength thereby helping in material savings.
Chemical Composition
| UNS / EN | %C | %Mn | %S | %P | %Si | %Ni | %Cr | %Mo | %N | |
|---|---|---|---|---|---|---|---|---|---|---|
| S32205 | Min | - | - | - | - | - | 4.50 | 22.0 | 3.0 | 0.14 |
| Max | 0.030 | 2.00 | 0.020 | 0.030 | 1.00 | 6.50 | 23.0 | 3.5 | 0.20 | |
| EN 1.4462 | Min | - | - | - | - | - | 4.50 | 21.0 | 2.5 | 0.10 |
| Max | 0.030 | 2.00 | 0.035 | 0.045 | 1.00 | 6.50 | 23.0 | 3.5 | 0.22 |
Mechanical Properties
| Mechanical Properties | UTS (MPa) | YS (MPa) | %EL | %Hardness(HRB) |
|---|---|---|---|---|
| ASTM A240 - UNS S32205 | 655 min | 450 min | 25 min | 293 BHN |
| Mechanical Properties | Product Form | Thickness max | UTS MPa | YS MPa | %EL | %IMpect Touchness |
|---|---|---|---|---|---|---|
| EN 1.4462 as per En 10088 | Cold Rolled | 8 | 700 - 950 | 500 min | 20 min | 100 (long) min |
| Hot Rolled | 13.5 | 700 - 950 | 460 min | 25 min | 100 (long) min | |
| Plate | 75 | 640 - 840 | 460 min | 25 min | 100 (long) min |
Applications
Chemical Industory
gas piping, Heat exchanger, tanks and vessels for chloride containing media
Oil and Gas Industory
Piping and process equipment, offshore structures
Flue gas desulphurization
systems, Electrostatic precipitators
