Aung Metals, based in Naypyidaw, Myanmar, has built a solid reputation as a reliable manufacturer and supplier of top-notch stainless steel products, with a particular focus on Duplex Steel S31803 Bars and Rods. Renowned for their precision engineering and high-quality metal solutions, Aung Metals caters to a diverse array of industries, providing durable and corrosion-resistant materials. The Duplex Steel S31803 Bars and Rods combine the best features of ferritic and austenitic stainless steels, offering remarkable strength, toughness, and corrosion resistance. With a strong commitment to quality, reliability, and timely delivery, Aung Metals ensures their solutions meet international standards, supporting various industrial sectors such as oil and gas, chemical processing, marine, and infrastructure projects across Myanmar and beyond.
These Duplex Steel S31803 Bars and Rods are made up of about 22% chromium, 5% nickel, and 3% molybdenum, along with small amounts of nitrogen, manganese, and silicon. This well-balanced composition grants them excellent corrosion resistance while also maintaining impressive mechanical strength. They exhibit a yield strength of around 450–550 MPa and a tensile strength of approximately 620–850 MPa. With a microstructure that consists of nearly equal parts austenite and ferrite, these materials ensure superior toughness, fatigue resistance, and stability. Their hardness typically falls between 280–330 HB, making them perfect for heavy-duty applications in challenging industrial settings.
| 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 find extensive use in industries where both strength and corrosion resistance are crucial. You’ll often see them in chemical processing equipment, pressure vessels, heat exchangers, and piping systems that are exposed to chloride-rich or acidic environments. They’re also utilized in oil and gas pipelines, marine structures, desalination plants, and the pulp and paper industry. Their ability to resist stress corrosion cracking, pitting, and high mechanical loads makes them a go-to choice for demanding engineering projects. These bars and rods promise long-term reliability, durability, and lower maintenance needs.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Naypyidaw, Myanmar
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