The duplex 2205 Tubes (UNS S32205/S31803) are used for demanding industrial applications due to its high tensile strength, corrosion resistance, and resistance to stress corrosion cracking. The applications are in different sectors depending on the needs, such as those that require high corrosion resistance; for this reason, the uses of Duplex 2205 Tubes are found in sectors such as the automotive sector, the aircraft sector and the medical sector. This stainless steel has a ratio of almost 50% of ferrite and austenite, with a higher yield strength than 304 and 316 stainless steels; moreover, it has excellent pitting, crevice corrosion, and chloride stress corrosion cracking resistance. It also comes in many different types, but some of the common ones are Duplex 2205 seamless tubes and another one is Duplex 2205 Welded Tubes. This stainless steel has a low coefficient of thermal expansion and high thermal conductivity; hence, its uses include making heat exchanger equipment, process pipes, marine equipment, and offshore equipment. As a premier Duplex 2205 Tubes Supplier and Manufacturer in USA, USA Piping Solution provides precision manufactured tubes that are quality, tolerances and reliability to international standards for use in challenging applications.
Specifications of Duplex 2205 Tubes
| Specification Parameter | Technical Details / Available Options |
|---|---|
| Standards & Types | Welded, Seamless, ERW, Fabricated, CEW, CDW, CDS, DOM |
| Size Range | 1/2" OD - 12" OD (Custom sizes available) |
| Thickness Range | SCH 5, SCH 10, SCH 40, SCH XS, SCH 80S, SCH 80, SCH 160, SCH XXH, SCH XXS (Custom thickness available) |
| Standard Specifications | ASTM, AISI, JIS, DIN, EN, SUS, GB |
| Production Techniques | Decoiling, Punching, Bending, Welding, Cutting, Moulding |
| Forms Available | Round, Hydraulic, Coiled, Square, U-Shape, Rectangular, Straight, Honed Tubes, Pan Cake Coils |
| End Configurations | Threaded, Beveled End, Plain End |
| Surface Finish | No.1, No.3, No.4, No.8, 1D, 2B, 2D, BA, HL (Hairline), 180G, 320G, 400G, 500G, 600G, 800G Mirror Polished, Satin Finish, or Custom Finish per specification |
| Marking Standard | Name of Manufacturer, Schedule, Pressure Class, Tube Size, etc. |
| Test Certificates Available | EN 10204 3.1 / 3.2 / 3.1B Material Test Certificates (MTC), Manufacturer Test Certificate, Raw Materials Certificate, Third-Party Inspection Report, 100% Radiography Test Report, Govt. Approved Laboratory Test Certificate |
Applications and Industrial Uses of Duplex 2205 Tubes
- Aerospace Industry
- Cleaning Factories Industry
- Food Processing Industry
- Oil and Gas Industry
- Pharmaceutical Industry
- Power Plant Industry
- Shipbuilding Industry
- Water Systems Industry
- Refinery Industry
Frequently Asked Questions
What are Duplex 2205 Tubes?
Duplex 2205 Tubes are high-strength stainless steel tubes with a balanced ferritic-austenitic structure. They offer excellent corrosion resistance and are widely used in chemical, marine, and offshore applications.
What is the maximum service temperature for Duplex 2205 tube before embrittlement risk sets in?
Duplex 2205 tubes are generally recommended for continuous service up to 300 °C (572 °F). Above this temperature, the risk of embrittlement and reduced toughness increases.
What is the difference between Duplex 2205 seamless tube and welded tube?
Seamless tubes are manufactured from a solid billet without a weld and are preferred for high-pressure applications. Welded tubes are made by joining steel strips and offer a more economical solution for general industrial use.
Can Duplex 2205 tube be used as a direct replacement for carbon steel tube in heat exchangers?
Yes. Duplex 2205 tubes can replace carbon steel tubes in many heat exchanger applications where improved corrosion resistance, higher strength, and longer service life are required.
When should you upgrade from Duplex 2205 to Super Duplex 2507 tube?
You should choose Super Duplex 2507 when the application involves highly aggressive chloride environments, higher operating pressures, or requires greater corrosion resistance than Duplex 2205 can provide.