2205 Duplex SS tube S31803 Duplex SS tube S32205 Duplex SS tube
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Product Description:
Experience unmatched strength and corrosion resistance with our Duplex SS Tubes. The 2205 tubes combine high strength and excellent corrosion resistance, ideal for harsh environments like marine and chemical processing.
S31803 tubes provide similar benefits with reliable performance in demanding applications. For enhanced corrosion resistance and strength, consider our S32205 tubes, which offer superior properties due to their higher alloying elements.
All variants are available in various sizes and specifications to support your project needs effectively.
Duplex Stainless Steel Grades 2205 (UNS S31803/S32205) are highly regarded for their dual-phase microstructure, combining austenitic and ferritic properties. These tubes are designed for exceptional strength, superior corrosion resistance, and enhanced performance in challenging environments.
Key Features of Duplex 2205 (S31803/S32205) Tubes
- High Strength:
- Approximately double the yield strength of conventional austenitic stainless steels like 304 and 316.
- Exceptional Corrosion Resistance:
- High resistance to pitting and crevice corrosion in chloride-rich environments.
- Excellent stress corrosion cracking resistance.
- Durability and Toughness:
- Outstanding toughness even at sub-zero temperatures.
- High fatigue resistance in demanding applications.
- Cost-Effective:
- Reduced nickel and molybdenum content for cost efficiency without sacrificing quality.
- Environmental Sustainability:
- Lower environmental impact due to reduced alloying elements.
Chemical Composition
Element | Composition (%) |
Chromium (Cr) | 22.0 – 23.0 |
Nickel (Ni) | 4.5 – 6.5 |
Molybdenum (Mo) | 3.0 – 3.5 |
Manganese (Mn) | 2.0 (maximum) |
Silicon (Si) | 1.0 (maximum) |
Nitrogen (N) | 0.14 – 0.20 |
Carbon (C) | 0.03 (maximum) |
Iron (Fe) | Balance |
Mechanical Properties
Property | Value |
Tensile Strength (MPa) | 620 (minimum) |
Yield Strength (MPa) | 450 (minimum) |
Elongation (%) | 25 |
Hardness (HB) | 290 (maximum) |
Types of Duplex 2205 Tubes
- Seamless Tubes:
- Manufactured for applications requiring high precision and strength.
- Available in various sizes and wall thicknesses.
- Welded Tubes:
- Cost-effective solution for large-scale applications.
- Available in a range of diameters and lengths.
- Custom Tubes:
- Tailored to meet specific project requirements such as special dimensions, finishes, or performance needs.
Common Applications
- Chemical Processing:
- Tubes handling corrosive chemicals and high-pressure fluids.
- Oil and Gas Industry:
- Used in pipelines, heat exchangers, and offshore equipment.
- Marine Applications:
- Ideal for seawater cooling systems and desalination plants.
- Pulp and Paper Industry:
- Equipment exposed to harsh chemicals.
- Water Treatment:
- Used in reverse osmosis plants and storage systems.
- Food and Beverage:
- Hygienic tubing systems for processing and handling.
Available Sizes and Specifications
Tubes
- Form: Seamless, Welded, U-Bend
- Outer Diameter (OD): 6 mm to 254 mm
- Wall Thickness: 0.5 mm to 30 mm
- Length: Up to 12 meters (custom lengths available)
Standards and Specifications
- Standards: ASTM A789, ASTM A790, EN 10216-5
- Grades: S31803, S32205
- Testing Standards: NACE MR0175, ISO 15156
Surface Finishes
Tubes:
- Pickled and Passivated
- Bright Annealed
- Polished (Matte, No. 4, Mirror Finish)
Value-Added Services
- Custom Cutting: Precision cutting to meet specific dimensions.
- Bending and Coiling: Custom bends and coils for specific applications.
- Testing and Certification:
- Radiography Testing (RT)
- Ultrasonic Testing (UT)
- Hydrostatic Testing
- EN 10204 3.1/3.2 Certification
- Packaging: Export-grade packaging for damage-free delivery.
Contact Us for High-Quality Duplex 2205 Tubes
Upgrade your systems with 2205 Duplex Stainless Steel Tubes for unmatched durability, strength, and corrosion resistance. Contact us today for expert advice, competitive pricing, and custom solutions tailored to your project needs!
