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Based in Chennai, India, Kunj Sheets and Plates is a reputable producer and supplier of Duplex Steel S31803 Channels. Our speciality is providing high-performance Duplex steel products that are corrosion-resistant, long-lasting, and of high quality. With a balanced microstructure of ferrite and austenite, our S31803 channels are designed to withstand the rigours of demanding industrial settings. These channels are appropriate for load-bearing and structural applications and come in a range of sizes and finishes. Serving customers in the oil and gas, marine, construction, and chemical processing sectors both domestically and internationally, Kunj focusses on precise manufacturing, prompt delivery, and affordable prices.
In addition to manganese, nitrogen, and a balance of iron, the main constituents of Duplex Steel S31803 Channel are 21–23% chromium, 4.5–6.5% nickel, and 2.5–3.5% molybdenum. This composition provides exceptional mechanical strength and resistance to corrosion. It has a minimum tensile strength of 620 MPa, a yield strength of 450 MPa, and a 25% elongation. It is perfect for demanding environments that demand both strength and corrosion resistance because of its dual-phase microstructure, which increases toughness even at below-freezing temperatures and improves resistance to stress corrosion cracking.
Specifications : ASTM A182 / ASME SA182
Angle Size Range : 20 x 20 mm to 100 x 100 mm
Angles Thickness : 3 to 12 mm (depending on size)
Channel Size Range : Base: 80 to 150 mm; Side: 40 to 75 mm
Channel Thickness : 5 to 6 mm (depending on size)
Length : 3MTR, 4MTR, 5MTR, 6MTR, or Custom Cut Sizes
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex 1803 | 1.4462 | S31803 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 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.
Kunj Sheets and Plates based in Chennai, India, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.
Duplex Steel S31803 Channel offers numerous advantages, making it a preferred choice across various industries. Its high chromium and molybdenum content ensures superior corrosion resistance, especially against pitting and crevice corrosion. The dual-phase microstructure imparts excellent mechanical strength and toughness, outperforming many standard stainless steels. It demonstrates exceptional resistance to stress corrosion cracking and fatigue, making it reliable in harsh environments. Additionally, its lightweight yet strong nature reduces material usage and overall costs. Versatile and durable, Duplex Steel S31803 is ideal for applications in marine, chemical, and construction industries.
Yes, we offer custom sizes for Duplex Steel S31803 Channel to meet specific project needs. Our team at Kunj Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@kunjsheetsplates.com.
Industries that require high mechanical strength and corrosion resistance frequently use Duplex Steel S31803 Channel. It is used in pipelines, risers, and subsea equipment in the oil and gas industry. It is used in tanks, heat exchangers, and vessels in the chemical and petrochemical industries. S31803 channels are perfect for seawater handling systems, offshore platforms, and shipbuilding in the maritime industry. Additionally, it is used in food processing facilities, pulp and paper mills, and structural frameworks for building. It can be used in harsh acidic and chloride-rich environments because of its resistance to pitting and crevice corrosion.
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