Kanish Metals is a well-respected manufacturer and supplier of **Duplex Steel S31803 Bars and Rods** located in **Dubai, UAE**. We take pride in providing top-notch duplex stainless steel products that are perfect for tough industrial settings. Our Duplex S31803 bars and rods are known for their outstanding durability, performance, and adherence to international standards, making them a go-to choice for many industries. With exceptional corrosion resistance and impressive mechanical strength, Kanish Metals is committed to delivering reliable supplies, precise manufacturing, and top-tier customer service throughout the UAE and beyond.
**Duplex Steel S31803** is a nitrogen-enhanced duplex stainless steel alloy that contains about **22% chromium, 5–6% nickel, 3% molybdenum**, and **0.14–0.20% nitrogen**. Its unique microstructure, which balances austenite and ferrite, gives it remarkable strength and resistance to corrosion. This alloy boasts a **tensile strength of 620–880 MPa**, a **yield strength of at least 450 MPa**, and an **elongation of around 25%**. Duplex S31803 is particularly resistant to pitting, crevice corrosion, and chloride stress corrosion cracking, making it an ideal choice for challenging and corrosive environments that demand both mechanical strength and corrosion resistance.
| Standard | ASTM A276, ASME SA276 |
| Round Bar Size | 3mm~ 800mm |
| Square Bar Size | 4mm* 4mm ~100mm* 100mm |
| Flat Bar Size | 2mm ~ 100mm |
| Hex Bar Size | 2mm ~ 100mm |
| Angle Size | 3mm* 20mm* 20mm~ 12mm* 100mm* 100mm |
| Thickness | 50 mm to 6000 mm Long |
| Length | 1 To 6 Meters, Custom Cut Length |
| Form | Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc |
| 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 |
| Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
| STANDARD | UNS | WERKSTOFF NR. |
| Duplex S31803 | S31803 | 1.4462 |
Yes, Duplex Steel S31803 rods offer excellent corrosion resistance, particularly against pitting, crevice, and stress corrosion. They are ideal for harsh environments, including marine and chemical applications.
Duplex Steel S31803 bars perform well in high-temperature environments, maintaining strength and resistance to oxidation. They are suitable for applications up to approximately 300°C (572°F).
Yes, Duplex Steel S31803 bars can be customized in size and length to meet specific project requirements. Customization ensures flexibility for various industrial applications.
Duplex Steel S31803 Bars and Rods are commonly utilized in applications that require **exceptional strength and corrosion resistance**. In the **oil and gas sector**, they are essential for subsea equipment, pipelines, and pressure vessels due to their ability to withstand chloride-induced corrosion. In **marine settings**, they are perfect for propeller shafts, fasteners, and structural components that come into contact with seawater. The **chemical processing industry** relies on them for heat exchangers, storage tanks, and process piping. Additionally, they find applications in **desalination plants**, the **pulp and paper industry**, and various **construction projects**, particularly in structures that are exposed to harsh conditions.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Kanish Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Dubai, UAE
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