- sales@vipulpipesandtubes.co.in
- Chennai, india
Home > Duplex Steel > Duplex Steel Pipes S31803
One of the top producers and suppliers of premium Duplex Steel Pipes S31803, known for its exceptional strength and resistance to corrosion, is Vipul Pipes and Tubes, located in Chennai. Because of its special dual-phase microstructure that combines austenitic and ferritic stainless steel, the S31803 duplex stainless steel grade has better mechanical qualities and is more resistant to pitting, corrosion, cracking, and chloride stress. These pipes are perfect for harsh settings like chemical processing, oil and gas, marine, and desalination industries because they are made with sophisticated welding and quality control techniques and meet international standards like ASTM A790 and ASME SA790.
About 22% chromium, 5%–6% nickel, 3% molybdenum, 0.14–0.20% nitrogen, and the remaining iron make up Duplex Steel Pipes S31803. High tensile strength (~620 MPa), yield strength (~450 MPa), and exceptional toughness are all provided by this well-balanced composition. Particularly in chloride-rich environments, the duplex structure improves resistance to localized corrosion, such as pitting and crevice corrosion. With a hardness of about 250 HV, the pipes are also suitable for high-pressure and high-temperature applications due to their good weldability and dimensional stability.
Pipe Range : 1 / 2″ NB – 8″ NB
Outer Diameter : 6.0-630mm
Wall Thickness : 0.3mm – 50 mm
Schedules : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Length : Single Random, Double Random & Required Length
Specifications : ASTM A790 / ASME SA790
Types : Seamless / Fabricated
| Duplex | S31803 |
|---|---|
| Ni | 4.50 – 6.50 |
| Fe | 63.72 min |
| Cr | 22.0 – 23.0 |
| C | 0.030 max |
| Si | 1.00 max |
| Mn | 2.00 max |
| P | 0.030 max |
| S | 0.020 max |
| N | 0.14 – 0.20 |
| Grade | S31803 |
| Density (g/cm 3) | 7.805 |
| Density (lb/in 3) | 0.285 |
| Melting Point (°C) | 1420 – 1465 |
| Melting Point (°F) | 2588 – 2669; |
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 Pipes S31803 from Vipul Pipes and Tubes ensures high quality and durability, as these pipes offer excellent corrosion resistance and strength. Our commitment to exceptional service and reliable delivery guarantees customer satisfaction across various industrial applications. Our expertise in stainless steel products ensures you receive a top-tier solution tailored to your needs.
Vipul Pipes and Tubes, one of the largest suppliers of Duplex Steel Pipes S31803 in Chennai, India, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.
Yes, we offer custom sizes for Duplex Steel Pipes S31803 to meet your specific requirements. Our team at Vipul Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@vipulpipesandtubes.co.in.
Because of their exceptional resistance to corrosion caused by chloride, duplex steel pipes S31803 are extensively utilized in the oil and gas sector, chemical processing facilities, desalination facilities, and marine applications. They are frequently used in piping systems, pressure vessels, heat exchangers, and structural elements that are subjected to extreme conditions. They are perfect for industrial waste treatment, offshore platforms, and subsea pipelines due to their superior mechanical qualities and resistance to corrosion. These pipes are also favored in power generation, seawater cooling systems, and the pulp and paper industries where low maintenance costs and durability are critical.
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