S32750 S32205 Duplex Stainless Steel Pipe Cold-Drawn for High Strength and Corrosion Resistance
Price:
US $4.15-7.25 / kg
MOQ:
50 kg
Delivery Time:
Negotiable
Product Description
Duplex Stainless Steel 2205 Seamless Tube
Duplex Steel 2205 Seamless Tube is a nitrogen-enhanced duplex stainless steel 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 2205 duplex stainless steel, austenite pools are 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.
The duplex structure combines the beneficial properties of ferritic alloys (stress corrosion cracking resistance and high strength) with those of austenitic alloys (manufacturing ease and corrosion resistance). For optimal performance, 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
- Resistance to chloride pitting and crevice corrosion
- Excellent general corrosion resistance
- Superior sulphide stress corrosion resistance
- High strength characteristics
- Good weldability and workability
Applications
- Chemical process vessels, piping and heat exchangers
- Pulp mill digesters, bleach washers, chip pre-steaming vessels
- Food processing equipment
- Oil field piping and heat exchangers
- 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 |
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Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben