Aung Metals, located in Naypyidaw, Myanmar, stands out as a top manufacturer and supplier of premium stainless steel products, with a special focus on advanced alloys like Duplex Steel S31803 Forging. Known for its precision engineering and strong metal solutions, Aung Metals caters to a variety of industrial sectors, providing durable and corrosion-resistant materials. Duplex Steel S31803 Forging merges the strengths of ferritic and austenitic steels, delivering exceptional performance even in tough conditions. With a strong commitment to quality, timely delivery, and customer satisfaction, Aung Metals offers dependable steel solutions that adhere to international standards, supporting infrastructure, oil and gas, chemical, and marine applications across Myanmar and beyond.
Duplex Steel S31803 Forging is a bi-phase stainless steel that contains about 22% chromium, 5% nickel, 3% molybdenum, along with trace amounts of nitrogen, manganese, and silicon. This unique blend strikes a perfect balance between corrosion resistance and mechanical strength. It boasts high yield strength (around 450–550 MPa) and tensile strength (approximately 620–850 MPa), along with excellent resistance to stress corrosion cracking. The microstructure is nearly half austenite and half ferrite, which contributes to its superior toughness, fatigue resistance, and dimensional stability. Its hardness typically falls between 280–330 HB, making it ideal for challenging forging applications.
| 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 Forging finds extensive use in industries where both corrosion resistance and strength are paramount. It’s perfect for chemical processing equipment, pressure vessels, and heat exchangers, especially in environments rich in chlorides or acids. This alloy is also utilized in oil and gas pipelines, marine structures, desalination plants, and pulp and paper manufacturing, where durability under stress and corrosive conditions is crucial. Its remarkable resistance to stress corrosion cracking and pitting, paired with high mechanical strength, makes it a go-to material for demanding environments.
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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