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Rinku Fasteners, based in the vibrant industrial hub of Kolkata, India, is a trusted manufacturer and supplier of high-performance Duplex Steel Stud Bolts. With a strong commitment to precision engineering and durability, the company produces stud bolts that meet the demanding needs of modern industries. Their Duplex Steel Stud Bolts are designed to withstand harsh environments, heavy loads, and corrosive conditions, making them ideal for critical applications. Rinku Fasteners blends advanced production techniques with strict quality standards to deliver products that customers can rely on. Their focus on consistency, strength, and customer satisfaction sets them apart in the fastener industry.
Duplex Steel Stud Bolts are crafted from a balanced microstructure of austenite and ferrite, providing exceptional strength and corrosion resistance. They typically contain high levels of chromium, nickel, and molybdenum, which enhance durability and resistance to pitting, crevice corrosion, and stress-corrosion cracking. Mechanically, these stud bolts offer impressive tensile strength, excellent yield strength, and superior hardness compared to standard stainless steels. Their dual-phase structure ensures remarkable toughness and fatigue resistance, making them dependable in environments involving high pressure, elevated temperatures, and mechanical stress.
| 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 are widely used across industries that require fasteners capable of handling extreme conditions. They play a crucial role in offshore platforms, marine engineering, and chemical processing plants where corrosion resistance is vital. These bolts are also preferred in desalination units, oil and gas refineries, heat exchangers, and power generation facilities due to their strength and reliability. Their ability to perform under high stress makes them suitable for heavy machinery, structural assemblies, and pressure vessel fabrication. Whether in aggressive environments or demanding mechanical settings, Duplex Steel Stud Bolts deliver long-lasting, dependable performance.
At Rinku 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.
Rinku Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kolkata, India, with over 8 years of experience serving global industries.
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