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Malik Fasteners, based in Manama, Bahrain, stands out as a top manufacturer and supplier of Duplex Steel Stud Bolts, known for their exceptional strength and resistance to corrosion. These bolts are meticulously crafted from duplex stainless steel, which strikes a perfect balance between austenitic and ferritic microstructures. This unique blend guarantees outstanding mechanical performance and heightened resistance to stress corrosion cracking and pitting. Perfect for tough industrial settings, Malik Fasteners’ Duplex Steel Stud Bolts offer reliability and durability in chemical, oil and gas, marine, and petrochemical environments, ensuring robust fastening solutions that uphold structural integrity even in extreme conditions.
Duplex Steel Stud Bolts are made from a carefully balanced blend of austenitic and ferritic stainless steel, typically featuring 22% chromium, 5–6% nickel, and 3% molybdenum, along with trace amounts of nitrogen. This specific composition provides remarkable tensile and yield strength, excellent toughness, and impressive fatigue resistance. The duplex structure significantly boosts resistance to stress corrosion cracking, pitting, and crevice corrosion, particularly in environments rich in chlorides. These bolts not only deliver high mechanical performance but also promise long-lasting durability, making them perfect for critical fastening needs in aggressive chemical, petrochemical, and offshore settings.
| Duplex Steel Stud Bolts | 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 |
| Duplex Steel Stud Bolts | 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 / S32205 |
| 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 find extensive use in industries that demand strong, corrosion-resistant fasteners. They are particularly suited for the oil and gas, chemical processing, marine, and petrochemical sectors, where resistance to stress corrosion, pitting, and heavy mechanical loads is crucial. Common applications include pressure vessels, heat exchangers, pipelines, flanges, and structural components that face harsh conditions. Their impressive strength and durability ensure long-term reliability, helping to cut down on maintenance costs and boost safety. Malik Fasteners’ Duplex Steel Stud Bolts are designed to meet the rigorous demands of these challenging environments.
At Malik Fasteners, we ensure Duplex Steel Stud Bolts are packaged with the utmost care to preserve their quality and integrity. Each bolt is individually inspected and securely wrapped in protective materials to prevent damage during transit. We offer a range of packaging options, including bulk cartons and custom-sized containers, to meet your specific needs. Our robust packaging solutions ensure that your fasteners arrive in pristine condition, ready for immediate use in your critical applications.
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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