S32750 S32760 S32205 S31803 2205 2507 Duplex Stainless Steel Pipe with Cold-Drawing Technique and Corrosion Resistance
Price:
4.15
MOQ:
50
Delivery Time:
Negotiable
Product Description
Duplex Stainless Steel Pipe Grades: S32750, S32760, S32205, S31803, 2205, 2507
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 characteristics of both austenitic and ferritic structures. In 2205 duplex stainless steel, the microstructure consists of austenite pools surrounded by a continuous ferrite phase, with approximately 40-50% ferrite in the annealed condition. As the most widely utilized grade in the duplex family, 2205 is often recognized as the workhorse alloy.
The duplex structure offers significant advantages by combining the beneficial properties of ferritic alloys—including stress corrosion cracking resistance and high strength—with those of austenitic alloys, such as ease of fabrication and excellent corrosion resistance.
Note: 2205 Duplex stainless steel should be limited to applications below 600°F, as prolonged exposure to elevated temperatures can cause embrittlement.
Key Features of Duplex Steel 2205 Seamless Tube
- 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
- Good weldability and workability
Applications of Duplex Steel 2205 Seamless Tube
- Chemical process vessels, piping systems, and heat exchangers
- Pulp mill digesters, bleach washers, chip pre-steaming vessels
- Food processing equipment
- Oil field piping and heat exchangers
- Flue gas desulfurization equipment
Chemical Composition of Duplex Steel 2205
| 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 of Duplex Steel 2205
| Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (HB) MAX |
|---|---|---|---|---|
| 2205 | 90 | 65 | 25 | 217 |
Physical Properties of Duplex Steel 2205
| Temperature | Density lbm/in³ | Electrical Resistivity mWin | Thermal Conductivity (BTU/hr·ft·°F) | Heat Capacity BTU/lbm·°F | Electrical Resistivity (in × 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
TSING SHAN STEEL INDUSTRIAL LIMITED
Location
NO.288,Youyi Road Xi Shan Dristrict , Wuxi, Jiangsu, China
Contact Person
Gao Ben