Anucha Metals stands out as a top manufacturer and supplier of Duplex Steel S31803 Forgings right in the heart of Bangkok, Thailand. They’re known for delivering high-quality forged components that boast impressive strength, corrosion resistance, and durability. Crafted from duplex stainless steel, these forgings blend the best features of both austenitic and ferritic structures, ensuring outstanding mechanical performance and resilience against stress corrosion cracking. Anucha Metals takes pride in providing precisely engineered S31803 forgings that adhere to international standards, making them perfect for tough industrial settings like the chemical, marine, and oil & gas sectors.
The composition of Duplex Steel S31803 Forgings mainly includes chromium, nickel, and molybdenum, along with trace amounts of nitrogen and manganese. This well-balanced mix results in high tensile and yield strength, remarkable resistance to pitting and crevice corrosion, and good weldability. Plus, the alloy retains strong mechanical properties even at extreme temperatures, making it ideal for demanding engineering applications that require long-lasting reliability and stability.
| 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 find their way into a variety of applications, including heat exchangers, pressure vessels, pumps, valves, chemical process equipment, marine hardware, and desalination plants. In these scenarios, strength, corrosion resistance, and performance under high stress are crucial. With their exceptional toughness, durability, and resistance to corrosion, Duplex Steel S31803 forgings have become the go-to choice across many industrial sectors.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Phehlukwayo Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Cape Town, South Africa
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