Anucha Metals stands out as a top manufacturer and supplier of Duplex Steel S31803 Forgings right in the heart of Bangkok, Thailand. They specialize in delivering high-performance solutions tailored for critical industrial applications. These forgings are celebrated for their remarkable strength and resistance to corrosion, crafted with precision and a commitment to international standards. Anucha Metals is dedicated to providing dependable products that serve various sectors, including oil & gas, marine, chemical processing, and construction. With cutting-edge technology, skilled professionals, and a focus on customer satisfaction, the company guarantees durability, consistency, and top-notch quality, making them a reliable partner for Duplex Steel S31803 Forgings both locally and globally.
Duplex Steel S31803 Forgings feature a well-balanced microstructure of ferrite and austenite, enhanced with chromium (21–23%), nickel (4.5–6.5%), molybdenum (2.5–3.5%), and nitrogen to boost strength. These forgings excel in resisting pitting, crevice corrosion, and stress corrosion cracking, especially in chloride environments. They boast high tensile and yield strength—almost double that of standard austenitic stainless steels—while still offering good ductility and toughness. Additionally, Duplex Steel S31803 Forgings provide excellent fatigue resistance, weldability, and a long service life, making them reliable performers in challenging industrial settings.
| 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.
These forgings are widely utilized in industries that demand exceptional strength, toughness, and corrosion resistance. In the oil & gas sector, they find applications in subsea equipment, pipelines, valves, and flanges. In marine settings, they are used for propeller shafts, ship components, and seawater handling systems. The chemical and petrochemical industries rely on these forgings for pressure vessels, heat exchangers, and reactors. They are also crucial in construction, paper & pulp, and desalination plants due to their durability in chloride-rich environments. With their ability to endure extreme conditions, Duplex Steel S31803 Forgings are truly indispensable in various demanding applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Anucha Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Bangkok, Thailand
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