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Malik Fasteners, located in Manama, Bahrain, stands out as a leading manufacturer and supplier of top-notch Duplex Steel Stud Bolts S31803. These stud bolts are designed to offer exceptional strength, durability, and resistance to corrosion, making them perfect for tough industrial and offshore settings. At Malik Fasteners, we adhere to strict quality standards and utilize advanced manufacturing techniques to guarantee reliability and a long lifespan. The Duplex Steel Stud Bolts S31803 are particularly effective against chloride-induced corrosion, stress corrosion cracking, and high-temperature conditions. With a commitment to precision, performance, and customer satisfaction, we deliver stud bolts that provide secure, long-lasting, and trustworthy fastening solutions for critical applications.
Duplex Steel Stud Bolts S31803 feature a well-balanced microstructure of austenite and ferrite, which gives them remarkable strength and corrosion resistance. They consist of about 22% chromium, 5–6% nickel, and 3% molybdenum, making them resistant to chloride-induced corrosion and stress corrosion cracking. These stud bolts showcase high tensile and yield strength, along with excellent toughness and fatigue resistance, even under extreme mechanical and thermal conditions. The duplex structure ensures outstanding durability, making them perfect for long-term use in industrial, marine, and chemical applications that demand both mechanical performance and corrosion resistance.
| 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 find extensive use in industries where strength and corrosion resistance are paramount. They are particularly suited for offshore platforms, chemical processing facilities, desalination plants, oil and gas pipelines, pressure vessels, and heat exchangers. These stud bolts consistently perform well in high-stress, high-temperature, and chloride-rich environments, ensuring secure and long-lasting connections.
At Malik Fasteners, Duplex Steel Stud Bolts S31803 are meticulously packaged to ensure safe and secure delivery. Each bolt is individually inspected and wrapped in protective material to prevent damage during transit. We use durable, high-quality packaging materials that safeguard against environmental factors such as moisture and impact. The bolts are organized in sturdy, labeled cartons for easy identification and handling. Our packaging process guarantees that your Duplex Steel Stud Bolts S31803 arrive in pristine condition, ready for immediate use.
Malik Fasteners is a leading manufacturer and supplier of high-quality fasteners in Manama, Bahrain, with over 8 years of experience serving global industries.
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