Mourad Metals, located in Tunis, Tunisia, stands out as a top manufacturer and supplier of high-quality Duplex Steel S31803 Forgings. The company focuses on crafting precision-engineered forgings that adhere to international standards, catering to a variety of industrial sectors. By utilizing cutting-edge forging technology and maintaining rigorous quality control, Mourad Metals guarantees that each forging offers consistent strength, durability, and resistance to corrosion. Their dedication to timely deliveries, technical support, and customer satisfaction has made them a reliable partner for engineers, fabricators, and industrial clients in need of dependable Duplex Steel S31803 Forgings for challenging applications in chemical, petrochemical, and marine environments.
Duplex Steel S31803 Forgings are made up of around 22% chromium, 5–6% nickel, and 3% molybdenum, along with trace amounts of nitrogen and other alloying elements. This well-balanced composition endows the steel with remarkable mechanical properties, such as high tensile and yield strength, toughness, and ductility. The alloy is known for its exceptional resistance to pitting, stress corrosion cracking, and general corrosion, especially in chloride-rich and aggressive chemical settings. Duplex S31803 effectively combines the advantages of both austenitic and ferritic stainless steels, providing superior strength and corrosion resistance, which makes it perfect for critical industrial applications in harsh conditions.
| Specifications | ASTM A182, ASME SA182 |
|---|---|
| Standard | DIN, ASTM, BS and all International Standards |
| Flat bar blocks | up to 27″ width and 15,000 lbs |
| Cylinders and sleeves | up to 50″ maximum O.D. and 65″ maximum length |
| Discs and hubs | up to 50″ diameter and 20,000 lbs |
| Rolled, hand forged or mandrel forged rings | up to 84″ maximum O.D. and 40″ maximum length |
| Rounds, shafts and step shafts | up to 144″ maximum length and 20,000 lbs |
| Forging Types | Impression Die Forging, Open Die Forging, Seamless Rolled Forging, Hot Forging, Cold Forging, Open die hammer forging, Impression die drop forging, Closed Die Forging, Press Forging, Upset Forging, Compression Forging, Swaging, Rotary Forging, Roll forging. |
| 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 |
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex Steel S31803 | 1.4462 | S31803 |
The maximum operating temperature for Duplex Steel S31803 forgings is typically around 300°C (572°F). Beyond this temperature, the material may experience reduced strength and susceptibility to stress corrosion cracking.
Duplex Steel S31803 forgings are available in various sizes, including diameters ranging from 10 mm to 800 mm, and shapes like round, square, billets, blocks, and custom configurations, based on application needs.
Yes, S31803 Duplex Steel forgings are highly resistant to corrosion, especially in chloride-rich environments. They offer excellent protection against pitting, crevice, and stress corrosion cracking, making them ideal for harsh industrial applications.
Duplex Steel S31803 Forgings find extensive use in the chemical processing, petrochemical, oil and gas, marine, and desalination industries, thanks to their outstanding corrosion resistance and mechanical reliability. They are frequently used in the construction of pressure vessels, heat exchangers, valves, pumps, piping systems, and other high-stress components that come into contact with aggressive media. Moreover, these forgings are well-suited for offshore platforms, seawater systems, and chemical reactors, where both strength and durability are essential.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Mourad Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Tunis, Tunisia
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