Home >Duplex Steel UNS S31803 Seamless Tubes
Thaida is the premier manufacturer and supplier in Bangkok, Thailand offering quality piping products for various industries. We are known for our best-in-class Duplex Steel UNS S31803 seamless tubes, which exhibit great mechanical strength, corrosion resistance, and durability in challenging environments. Our products conform to world standards so customers can ensure reliability during use. Thaida Pipes And Tubes is a trusted name built on quality, innovation, and customer satisfaction.
Duplex Steel UNS S31803 seamless tubes typically comprise 22 percent chromium, 5 to 6 percent nickel, 3 percent molybdenum, nitrogen, and balance iron. Duplex Steel UNS S31803 seamless tubes provide excellent strength and resistance to corrosion. They possess high tensile strength (approximately 620 MPa), yield strength (minimum of 450 MPa), toughness, and fatigue resistance. Key benefits include high resistance to pitting, crevice, and stress corrosion cracking, as well as good weldability and thermal conductivity. Duplex Steel UNS S31803 seamless tubes are a good fit for severe applications to deliver performance, longevity, and cost efficiency in these rigorous industrial and marine environments.
| Grade | Duplex Stainless Steel UNS S31803 |
|---|---|
| Standard | ASTM A789 / ASME SA789 |
| UNS Number | S31803 |
| Werkstoff Number | 1.4462 |
| Form | Seamless Tubes |
| Size Range | 6.35 mm OD to 101.6 mm OD |
| Wall Thickness | 0.5 mm to 12.7 mm |
| Length | Up to 12 meters or custom cut lengths |
| End | Plain, Beveled, Threaded |
| Surface Finish | Annealed and Pickled, Polished |
| UNS Number | Werkstoff Number |
|---|---|
| S31803 / S32205 | 1.4462 |
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 4.50 – 6.50 |
| Iron (Fe) | 63.72 min |
| Chromium (Cr) | 22.0 – 23.0 |
| Carbon (C) | 0.030 max |
| Silicon (Si) | 1.00 max |
| Manganese (Mn) | 2.00 max |
| Phosphorus (P) | 0.030 max |
| Sulfur (S) | 0.020 max |
| Nitrogen (N) | 0.14 – 0.20 |
| Grade | Density | Melting Point | Yield Strength (0.2% Offset) | Tensile Strength | Elongation |
|---|---|---|---|---|---|
| Duplex S31803 | 7.8 g/cm³ | 1350 °C (2460 °F) | Psi – 80,000 , MPa – 550 | Psi – 116,000 , MPa – 800 | 15 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Duplex Steel UNS S31803 Seamless Tubes in Thailand ensures superior quality, durability, and performance. These pipes provide outstanding corrosion resistance and strength, making them ideal for demanding industrial applications. With a strong commitment to exceptional service and timely delivery, Thaida guarantees complete customer satisfaction. Backed by expertise in stainless steel products, we deliver high-grade, customized solutions designed to meet your specific requirements with precision and reliability.
A leading supplier of Duplex Steel UNS S31803 Seamless Tubes, Thaida offers a wide range of high-quality pipes and tubes suitable for various industrial applications. With an extensive inventory and a strong commitment to dependable service, it has earned a reputation as a trusted provider of stainless steel solutions throughout Thailand.
Yes, Thaida in Thailand provides custom sizes for Duplex Steel UNS S31803 Seamless Tubes to perfectly match your specific requirements. Our dedicated team is committed to delivering tailored piping and tubing solutions that meet your industrial needs. For more information, reach out to us at [email protected].
Duplex Steel UNS S31803 seamless tubes find common use in a range of sectors that require strength, corrosion resistance and reliability. Industries such as chemical processing, petrochemical, and oil & gas use these tubes in heat exchangers, pipelines, and pressure vessels. Duplex Steel UNS S31803 seamless tubes are excellent for seawater applications and desalination processes due to their superior corrosion resistance. Additionally, Duplex Steel UNS S31803 seamless tubes can also be found in power generation, pulp and paper, and structural applications where longevity and performance are necessary performance in sustaining quality and efficiency through a wide range of conditions.
