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Smith Fittings stands out as a top-notch manufacturer and supplier of **Duplex Steel S31803 Circles** right from **Canberra, Australia**. We take pride in offering high-quality duplex stainless steel products that are celebrated for their remarkable corrosion resistance, strength, and durability. Our Duplex Steel S31803 Circles are crafted with precision, utilizing cutting-edge production techniques and rigorous quality control to guarantee consistent dimensions, a smooth surface finish, and dependable performance. These circles are perfect for a variety of applications in the chemical, marine, and industrial sectors, boasting exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. Smith Fittings caters to a range of industries, including oil and gas, chemical processing, marine engineering, and heavy manufacturing, providing top-tier duplex steel solutions.
**Duplex Steel S31803 Circles** showcase a well-balanced **austenitic (≈50%) and ferritic (≈50%) stainless steel microstructure**, enriched with **chromium (≈22%), nickel (≈5–6%), molybdenum (≈3%), nitrogen, and trace elements**. They deliver impressive **tensile strength (≈650–800 MPa)** and **yield strength (≈450–550 MPa)**, along with excellent **ductility** and remarkable **resistance to pitting, crevice corrosion, and stress corrosion cracking**. This makes them a fantastic choice for challenging industrial and marine environments.
| Standard | ASTM A240, ASME SA240 |
| Dimensions | ASTM, ASME and API |
| Standard | JIS, AISI, ASTM, GB, DIN, EN, etc. |
| Thickness | 1 Mm To 100 mm. |
| Diameter | Upto 2000 Mm. |
| Circle Diameter | 3″ DIA up to 38″ DIA 1500 lbs max. |
| Circles Form | Cold Rolled, Small Flat, Industrial, Proof Machined, Perforated, Forged Steel, Cnc Finish, Polished Unique, Hot Rolled Circle.. |
| 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.
Josh Sheets and Plates based in Canberra, Australia, 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 Circles offer several advantages, making them ideal for industrial applications. Their dual-phase microstructure provides exceptional strength and toughness, outperforming many conventional stainless steels. These circles have excellent corrosion resistance, especially against pitting, crevice corrosion, and stress corrosion cracking, even in harsh environments. They exhibit superior thermal conductivity and low thermal expansion, ensuring stability under temperature fluctuations. With high weldability and machinability, they are suitable for complex fabrication. Additionally, Duplex S31803 Circles offer a cost-effective solution due to reduced material thickness without compromising durability and performance.
Yes, we offer custom sizes for Duplex Steel S31803 Circle to meet specific project needs. Our team at Josh Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
These **Duplex Steel S31803 Circles** find extensive use in **flanges, rings, gaskets, and structural components** thanks to their high strength, corrosion resistance, and dimensional stability. In **industrial and fabrication settings**, they are utilized for **pressure vessels, chemical processing equipment, marine assemblies, and precision-engineered machinery parts**, where durability, reliability, and long-lasting performance are crucial. Moreover, these circles are integral to **offshore, oil and gas, and renewable energy projects**, ensuring operational efficiency, low maintenance, and a long service life. Their unique blend of **mechanical strength, corrosion resistance, and versatility** makes Duplex Steel S31803 Circles an excellent choice for various applications.
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