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Poang Fasteners is a reliable manufacturer and supplier of Duplex Steel Stud Bolts S31803, providing top-notch fastening solutions for industries that demand exceptional strength and corrosion resistance. These stud bolts are made from duplex stainless steel grade S31803, which boasts a well-balanced microstructure of austenite and ferrite, giving them impressive mechanical properties and durability. With their precise threading, accurate dimensions, and strong resistance to stress corrosion cracking, Duplex Steel S31803 stud bolts are perfect for critical fastening tasks in tough environments. Poang Fasteners is committed to delivering consistent quality, serving industries throughout Vietnam and beyond with dependable products.
Duplex Steel Stud Bolts S31803 primarily consist of chromium, nickel, and molybdenum, along with nitrogen, which boosts their strength and corrosion resistance. This unique alloy offers a remarkable blend of high tensile strength and outstanding resistance to localized corrosion, such as pitting and crevice corrosion. Mechanically, these stud bolts provide double the strength of standard stainless steels, along with high fatigue resistance and excellent toughness. Their balanced metallurgical structure enables them to endure extreme pressure and temperature fluctuations, ensuring reliable fastening performance in demanding industrial settings.
| S31803 | C | N | P | Si | Mn | Mo | Fe | Cr | S | Ni |
| 1.0 | 0.03 | 0.02 | 2.0 | 3.0 – 3.5 | 22.0 – 23.0 | 0.03 | 4.5 – 6.5 | 0.14 – 0.2 | Bal |
| S31803 | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
| Grade | Duplex Steel UNS S31803 / S31803 |
| Specifications | ASTM A 479 ASME SA 479 |
| Dimension | DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Types | Threaded Rod, Class A double ended stud, Tie Rod, Double Ended Stud, Stud Bolts, Bronze Hex Studs, Threaded Studs etc |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Duplex Steel Stud Bolts S31803 are widely used in demanding applications due to their superior strength and corrosion resistance. Commonly employed in the oil and gas industry, marine environments, and chemical processing, they are ideal for high-pressure and high-temperature conditions. These bolts are also used in construction and infrastructure projects where durability is crucial. Their resilience to stress corrosion and pitting makes them suitable for critical applications requiring reliable and long-lasting fastening solutions.
Duplex Steel Stud Bolts S31803 find extensive use in industries where superior mechanical properties and corrosion resistance are crucial. In the oil and gas sector, they are utilized in offshore platforms, subsea pipelines, and processing equipment that face chloride-rich environments. They are also essential in chemical processing plants, marine engineering, heat exchangers, and power generation systems. Their ability to resist stress corrosion cracking while maintaining strength under extreme conditions makes them a go-to choice for challenging applications. These attributes make Duplex Steel S31803 stud bolts vital for heavy-duty engineering and industrial projects.
Poang Fasteners is a leading manufacturer and supplier of high-quality fasteners in Da Nang, Vietnam, with over 8 years of experience serving global industries.
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