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A reputable producer and supplier of Duplex Steel S31803 Angles in Chennai, India, Kunj Sheets and Plates is well-known for providing high-end structural elements to a range of industrial sectors. Our Duplex Steel S31803 Angles are expertly crafted, satisfy global quality standards, and provide exceptional mechanical strength, long-term durability, and corrosion resistance. These angles are frequently used in structural, chemical, oil and gas, and marine applications where durability in challenging conditions is crucial. Kunj is the go-to source for Duplex Steel products in both domestic and international markets because we guarantee specialised solutions, prompt delivery, and dependable service.
About 22% chromium, 5-6% nickel, 3% molybdenum, and nitrogen make up Duplex Steel S31803 Angles. A dual-phase microstructure that combines ferritic and austenitic properties is the result of this well-balanced composition. High resistance to pitting, stress corrosion cracking, and crevice corrosion is provided by S31803. Its mechanical properties include a minimum tensile strength of 620 MPa, a yield strength of 450 MPa, and an elongation of about 25%. The alloy is appropriate for structurally demanding applications in environments that are aggressive and chloride-rich due to its high fatigue strength and exceptional weldability.
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 Angle offers several key advantages, making it ideal for demanding applications. Its dual-phase microstructure provides excellent strength and toughness, with tensile strength ranging from 620-800 MPa. The alloy exhibits superior resistance to pitting, crevice corrosion, and stress corrosion cracking, making it ideal for harsh environments. Its high resistance to fatigue and abrasion further enhances its longevity and reliability. Additionally, Duplex Steel S31803 offers excellent weldability, formability, and cost-effectiveness compared to other high-performance alloys, making it a preferred choice for industries like chemical processing, marine, and oil & gas.
Yes, we offer custom sizes for Duplex Steel S31803 Angle 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 strength and corrosion resistance, especially in harsh environments, make extensive use of Duplex Steel S31803 Angles. They are used in piping systems, offshore platforms, and subsea equipment in the oil and gas industry. They serve as structural supports and frameworks exposed to acidic and chloride-rich solutions in the chemical and petrochemical industries. Because of their exceptional performance in saltwater, they are also crucial in heat exchangers, desalination plants, and marine structures. S31803 angles are used in construction as reinforcements in load-bearing structures to guarantee structural integrity and longevity under corrosive exposure and stress.
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