Isis Metals stands out as a top manufacturer and supplier of **Duplex Steel S31803 Forgings** right from the heart of Manila, Philippines. They specialize in crafting high-performance duplex stainless steel products that are built to last, offering impressive strength, corrosion resistance, and durability. Thanks to their cutting-edge forging technology and rigorous quality control measures, Isis Metals guarantees that every S31803 forging adheres to international standards for both performance and reliability. These forgings are specifically designed to thrive in harsh chemical, marine, and industrial settings, blending remarkable mechanical properties with outstanding corrosion resistance. As a result, Isis Metals has earned a reputation as a trusted provider of duplex steel solutions for various industries, both in the Philippines and around the globe.
When it comes to **Duplex Steel S31803 Forgings**, they consist of about 22% chromium, 5–6% nickel, 3% molybdenum, and 0.14% nitrogen, with iron making up the rest. This unique dual-phase (austenitic-ferritic) structure delivers exceptional strength and toughness, along with impressive resistance to pitting, crevice corrosion, and stress-corrosion cracking. The alloy showcases high tensile strength, typically ranging from 620–850 MPa, and offers good weldability and formability. Plus, Duplex Steel S31803 remains stable even under high pressure and temperature conditions, ensuring a long service life in demanding environments.
| 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.
You’ll find **Duplex Steel S31803 Forgings** being utilized across various industries that demand both high mechanical strength and excellent corrosion resistance. They’re perfect for creating flanges, shafts, pipe fittings, valves, and components for pressure vessels used in chemical processing, oil and gas, and marine sectors. This alloy is also a go-to choice for desalination plants, heat exchangers, and offshore structures where resistance to chloride-induced corrosion is crucial. With their blend of durability, toughness, and resistance to corrosion and fatigue, Duplex Steel S31803 Forgings are the top pick for high-performance industrial and engineering applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Isis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manila, Philippines
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