All Products
-
Raian IonescuMaterial quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future
Duplex Steel 2205 Seamless Tube with Cold-Drawing Technique and Bright Surface Treatment in OD 6-630mm
Product Details
| Model NO. | 2205 | Shape | Round |
|---|---|---|---|
| Technique | Cold-Drawing | Surface Treatment | Bright |
| Specification | OD 6-630mm | Production Capacity | 50000kgs |
| Max Temperature | 600° F | Tensile Strength | 90 Ksi (min) |
| Yield Strength | 65 Ksi (min) | Elongation | 25% |
| Hardness | 217 HB (max) | Density | 0.278 Lbm/in3 |
| Electrical Resistivity | 27.6 MWin | Thermal Conductivity | 8.7 BTU/hrft°F |
| Heat Capacity | 0.112 BTU/lbm°F | ||
| Highlight | Cold-Drawing Technique Duplex Steel 2205 Seamless Tube,Bright Surface Treatment Duplex Stainless Steel Tube,OD 6-630mm S32205 Seamless Tube |
||
Product Description
Duplex Steel 2205 Seamless Tube
Duplex Steel 2205 Seamless Tube is a nitrogen-enhanced duplex stainless steel specifically engineered to address common corrosion challenges encountered with 300 series stainless steels. The "duplex" classification refers to stainless steels that combine both austenitic and ferritic microstructures. In the 2205 alloy, this results in austenite pools surrounded by a continuous ferrite phase, with approximately 40-50% ferrite in the annealed condition. As the most widely used grade in the duplex family, 2205 is often considered the workhorse alloy for demanding industrial applications.
The duplex structure provides significant advantages by combining the beneficial properties of ferritic alloys—such as stress corrosion cracking resistance and high strength—with those of austenitic alloys, including excellent fabrication characteristics and superior corrosion resistance.
Note: Application of 2205 Duplex stainless steel should be limited to temperatures below 600°F, as prolonged exposure to elevated temperatures can cause embrittlement.
Key Features
- High resistance to chloride stress corrosion cracking
- Excellent resistance to chloride pitting and crevice corrosion
- Superior general corrosion resistance
- Strong sulphide stress corrosion resistance
- High strength characteristics
- Excellent weldability and workability
Industrial Applications
- Chemical process vessels, piping systems, and heat exchangers
- Pulp mill digesters, bleach washers, and chip pre-steaming vessels
- Food processing equipment
- Oil field piping and heat exchange systems
- Vent gas desulfurization equipment
Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| 2205 (S31803) | 0.03 max | 2.0 max | 1.0 max | 0.03 max | 0.02 max | min: 21.0 max: 23.0 |
min: 2.5 max: 3.5 |
min: 4.5 max: 6.5 |
min: 0.08 max: 0.20 |
| 2205 (S32205) | 0.03 max | 2.0 max | 1.0 max | 0.03 max | 0.02 max | min: 22.0 max: 23.0 |
min: 3.0 max: 3.5 |
min: 4.5 max: 6.5 |
min: 0.14 max: 0.20 |
Mechanical Properties
| Grade | Tensile Strength ksi (min) |
Yield Strength 0.2% ksi (min) |
Elongation % | Hardness (HB) MAX |
|---|---|---|---|---|
| 2205 | 90 | 65 | 25 | 217 |
Physical Properties
| Temperature | Density lbm/in³ |
Electrical Resistivity mWin |
Thermal Conductivity (BTU/hrft°F) |
Heat Capacity BTU/lbm°F |
Electrical Resistivity (in x 10⁻⁶) |
|---|---|---|---|---|---|
| at 68°F | 0.278 | 27.6 | 8.7 | 0.112 | 33.5 |
| at 212°F | 26.1 | 9.2 | 0.119 | 35.4 | |
| at 392°F | 25.4 | 9.8 | 0.127 | 37.4 | |
| at 572°F | 24.9 | 10.4 | 0.134 | 39.4 |
Recommended Products