Choosing the correct tubing material is vital to reliability and maintenance costs for items that are exposed to corrosive, chloride-rich or high-pressure conditions during equipment operation. Designed for exceptional durability, Duplex 2205 Welded Tubes have almost twice the yield strength of 316L stainless steel and superior resistance to pitting, crevice corrosion and chloride stress corrosion cracking. These tubes are precision welded from high-quality duplex stainless steel strips, and provide uniformity of wall thickness, high quality surface finish and excellent dimensional accuracy. They are used in a number of applications including heat exchangers, offshore platforms, desalination plants, chemical processing plants and marine applications. Usapipingsolution is a Duplex 2205 Welded Tubes Manufacturer and Supplier that provides tubes that meet international standards, custom sizes, excellent weld quality, and reliable performance in critical industrial systems.
Duplex Steel UNS S32205 Welded Pipes Specification
| Specification Parameter | Technical Details |
|---|---|
| Pipe Size Range | 1/2" NB - 8" NB |
| Outer Diameter (OD) | 6.0 mm - 630 mm |
| Wall Thickness (WT) | 0.3 mm - 50 mm |
| Available Schedules | SCH 20, SCH 30, SCH 40, STD, SCH 80, XS, SCH 60, SCH 120, SCH 140, SCH 160, XXS |
| Length Options | Single Random, Double Random, and Custom Required Length |
| Standard Specifications | ASTM A789 / ASME SA789 |
| Manufacturing Types | Welded / EFW (Electric Fusion Welded) / Fabricated |
Pressure Rating Chart of Duplex 2205 Welded Tubes
| Pipe Outer Dia. (In.) | .028" WT | .035" WT | .049" WT | .065" WT | .083" WT | .095" WT | .109" WT | .120" WT |
|---|---|---|---|---|---|---|---|---|
| 1/8" | 7,900 | 10,100 | - | - | - | - | - | - |
| 1/4" | 3,700 | 4,800 | 7,000 | 9,500 | - | - | - | - |
| 5/16" | - | 3,700 | 5,400 | 7,300 | - | - | - | - |
| 3/8" | - | 3,100 | 4,400 | 6,100 | - | - | - | - |
| 1/2" | - | 2,300 | 3,200 | 4,400 | - | - | - | - |
| 3/4" | - | - | 2,200 | 3,000 | 4,000 | 4,600 | - | - |
| 1" | - | - | - | 2,200 | 2,900 | 3,400 | 3,900 | 4,300 |
Applications and Industrial Uses of Duplex 2205 Welded Tubes
- Pulp & Paper Industries
- Chemical tanks
- Power Generation Industries
- Petrochemical Industries
- Desalination
- Oil & Gas Industries
- Food Processing Equipment
- Architecture and Construction
Frequently Asked Questions:
1. What is the difference between Duplex 2205 seamless and welded tubes?
Seamless tubes are manufactured from a solid billet without a weld, making them suitable for high-pressure applications. Welded tubes are made by joining steel strips and are more economical for general industrial use.
2. What is the ASTM standard for Duplex 2205 welded tubes?
Duplex 2205 welded tubes are commonly manufactured according to ASTM A789/ASME SA789. Depending on the application, they may also comply with ASTM A790.
3. Is UNS S32205 the same as UNS S31803?
UNS S32205 and UNS S31803 are closely related Duplex 2205 grades. UNS S32205 has a slightly tighter chemical composition for improved corrosion resistance and is often supplied as a replacement for UNS S31803.
4. What is the difference between Duplex 2205 and Duplex 2507?
Duplex 2507 offers higher chromium, molybdenum, and nitrogen content, providing greater strength and superior corrosion resistance than Duplex 2205. Duplex 2205 is more commonly used for general industrial applications.
5. Can Duplex 2205 be welded to carbon steel?
Yes. Duplex 2205 can be welded to carbon steel using suitable filler materials and proper welding procedures to ensure a strong and reliable joint.