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Home > Duplex Steel > Duplex Steel Pipes S31803
Ojas Pipes and Tubes, your go-to manufacturer and supplier right here in Kolkata, India! We take pride in delivering top-notch Duplex Steel Pipes S31803, known for their remarkable strength, resistance to corrosion, and long-lasting durability. These pipes are built to thrive in tough conditions, whether it’s high pressure or corrosive environments. At Ojas, we make sure our Duplex Steel Pipes S31803 meet international quality standards, catering to the varied needs of industries around the globe. With a strong commitment to innovation, precision engineering, and keeping our customers happy, we’ve established ourselves as a reliable source for advanced piping solutions.
When it comes to the composition and mechanical properties of our Duplex Steel Pipes S31803, they’re crafted from a well-balanced mix of chromium (21-23%), nickel (4.5-6.5%), molybdenum (2.5-3.5%), and nitrogen, with iron as the base. This unique blend gives them outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. These pipes boast impressive mechanical properties, featuring a high tensile strength of 620 MPa, yield strength of 450 MPa, and a good elongation rate of 25%. Thanks to their duplex microstructure, they offer enhanced performance and corrosion resistance compared to regular austenitic or ferritic steels.
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 Ojas 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.
Ojas Pipes and Tubes, one of the largest suppliers of Duplex Steel Pipes S31803 in Kolkata, 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 Ojas Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@ojaspipesandtubes.co.in.
Duplex Steel Pipes S31803 find their place in various industries, including oil and gas, chemical processing, and marine engineering. They’re perfect for offshore platforms, subsea pipelines, and heat exchangers, thanks to their strength and ability to resist corrosion in harsh environments. You’ll also see these pipes in desalination plants, pressure vessels, and power generation systems. Their durability, high performance under pressure, and resistance to cracking make them the go-to choice for critical industrial applications that demand reliable and long-lasting piping solutions.
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