Duplex Steel UNS S31803 Pipes & Tubes Manufacturer in India
Duplex Steel UNS S31803 Pipes & Tubes are engineered for industrial systems that require a strong combination of corrosion resistance and mechanical stability. This grade belongs to the original duplex stainless steel family and is designed with a balanced microstructure of austenite and ferrite, which enhances both strength and durability in demanding service environments.
Our UNS S31803 Pipes & Tubes are supplied for applications where equipment is continuously exposed to moisture, chemicals, and high mechanical loading. These include offshore platforms, desalination plants, chemical processing units, marine piping systems, and refinery operations where material failure is not an option.
Duplex Steel UNS S31803 Pipes & Tubes, Heat Exchanger Tubes, Boiler Tubes, and Precision Pipe Systems with Standard Dimensions and Tested Quality.
UNS S31803 Pipes & Tubes are available in seamless and welded forms with controlled dimensional accuracy and consistent metallurgical quality. This ensures smooth flow performance, stable pressure handling, and long service life even in aggressive operating conditions.
Industries We Serve - Duplex Steel UNS S31803 Pipes & Tubes
Duplex Steel UNS S31803 Pipes & Tubes are extensively utilized in a wide range of industrial sectors including automobile manufacturing, petrochemical facilities, fabrication workshops, chemical processing plants, heat exchanger systems, and power generation units. Their growing demand is mainly due to their excellent combination of mechanical strength and superior resistance to corrosion in challenging working environments.
Buy Duplex Steel UNS S31803 Pipes & Tubes, manufactured as per ASTM A790 / ASTM A928 / ASTM A815 and ASME SA790 / SA928 standards, available in seamless and welded forms with Fast Delivery and Competitive Rates.
Due to its durability and resistance to mechanical wear, UNS S31803 reduces maintenance requirements and extends the overall lifecycle of piping systems. This contributes to improved operational efficiency and reduced downtime in critical industries.
Duplex Steel UNS S31803 Pipes & Tubes Chemical Composition
| Ni | Cr | Mo | Mn | Si | C | N | S | P | Fe |
|---|---|---|---|---|---|---|---|---|---|
| MIN | 4.5 | 22.0 | 3.0 | – | – | – | 0.14 | – | – |
| MAX | 6.5 | 23.0 | 3.5 | 2.0 | 1.0 | 0.03 | 0.2 | 0.02 | 0.03 |
Duplex Steel UNS S31803 Pipes & Tubes Specifications
| Parameter | Details |
|---|---|
| Standard | ASTM A790 / ASME SA790 UNS S31803, S32205, S32550, S32750, S32760 |
| Materials | ASTM A815 – UNS S31803 |
| Size | 1/2″ NB TO 12″ NB IN |
| Seamless Pipes & Tubes Sizes | 1/2” NB – 8” NB |
| Welded Pipes & Tubes Sizes | 6” NB – 24” NB |
| Thickness | 0.5 – 45 mm |
| Outer Diameter | 6.0 – 630 mm |
| Dimensions | OD (6.0 – 630) × WT (0.5 – 45) mm |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80 |
| Type | Welded / Fabricated / Seamless |
| Length | Single Random, Double Random & Cut Length |
Looking for High-Quality Industrial Metal Products?
Get in touch with our experts for competitive pricing, fast delivery, and customized solutions.
If you are looking for Duplex Steel UNS S31803 Pipes & Tubes suppliers, Steel Gems is ready to help. Contact us today for more details or to get a quick quote.
Steel Gems is a trusted source for Duplex Steel UNS S31803 Pipes & Tubes, supplying to major industrial locations across India including Mumbai, Pune, Delhi, Chennai, Ahmedabad, and Hyderabad. Along with domestic reach, we also maintain a strong export network serving regions like the UAE, Saudi Arabia, Qatar, Oman, Malaysia, Singapore, Indonesia, and South Africa, supporting global industrial requirements with consistent quality supply.
Duplex Steel UNS S31803 Pipes & Tubes Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Duplex 2205 | 1.4462 | S31803 |