Product Overview – Duplex Steel S32205 Seamless Pipes
Duplex Steel S32205 seamless pipes are manufactured using duplex stainless steel that contains a balanced microstructure of austenite and ferrite phases. This dual-phase structure provides significantly higher strength and improved corrosion resistance compared to conventional stainless steels.
UNS S32205 is widely recognized as the modern specification for Duplex 2205 stainless steel,offering superior performance in environments that involve chlorides, seawater exposure, and aggressive industrial chemicals.
The seamless manufacturing process ensures consistent wall thickness, excellent structural reliability, and the ability to withstand high pressure conditions. After production, these pipes undergo solution annealing, pickling, and rigorous quality testing to maintain strict industrial standards.
Because of their exceptional durability, Duplex Steel S32205 seamless pipes are extensively used in offshore oil platforms, chemical processing plants, desalination units, heat exchanger systems, and marine engineering applications.
Standard & International Identification - Duplex Steel S32205 Seamless Pipes
Technical Specifications – Duplex S32205 Seamless Pipes
| Pipe Type: | Seamless Duplex Stainless Steel Pipes |
| Manufacturing Process: | Hot Piercing → Cold Drawing → Solution Annealing → Pickling & Passivation |
| Outer Diameter: | 6 mm to 610 mm |
| Wall Thickness: | 0.5 mm to 50 mm |
| Length Options: | Single Random Length/ Double Random Length/ Custom Cut Length |
| Surface Finish: | Bright Annealed / Pickled & Annealed / Polished Finish Available |
| Testing & Inspection: | Hydrostatic Test,Ultrasonic Testing, PMI,Dimensional Inspection |
| Certification : | EN 10204 3.1 / 3.2 MTC |
Third Party Inspection Available
All specifications are in accordance of ASTM A790 / ASTM A789 standards. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition – Duplex Steel S32205
(As per ASTM specification)
| Element | Max (%) |
|---|---|
| Carbon (C): | 0.03% |
| Chromium (Cr): | 22 – 23% |
| Nickel (Ni): | 4.5 – 6.5% |
| Molybdenum (Mo): | 3.0 – 3.5% |
| Nitrogen (N): | 0.14 – 0.20% |
| Manganese (Mn): | Max 2% |
| Silicon (Si): | Max 1% |
| Iron : | Balance |
Note: This composition provides excellent strength along with superior resistance to corrosion.
Mechanical Properties – Duplex S32205 Pipes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 620 MPa |
| Yield Strength | 450 MPa |
| Elongation | 25% |
Duplex S32205 pipes offer significantly higher strength compared to traditional stainless steels such as 304 or 316.
Corrosion Resistance of Duplex Steel S32205 Pipes
Duplex S32205 seamless pipes offer excellent corrosion resistance in challenging industrial environments.
Key corrosion resistance advantages include:
Because of these characteristics, Duplex S32205 pipes are widely used in marine engineering and offshore infrastructure.
Major Industrial Applications of Duplex Steel S32205 seamless pipes
- Duplex Steel S32205 seamless pipes are commonly used in:
- 🔸Oil and Gas Industry
- 🔸Offshore Platforms
- 🔸Chemical Processing Plants
- 🔸Desalination Plants
- 🔸Heat Exchanger Equipment
- 🔸Marine Engineering Systems
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