Request For Our Latest Prices On Duplex Steel Bolts in Kolkata, India!
Rinku Fasteners, based in Kolkata, India, has made a name for itself as a top manufacturer and supplier of high-quality Duplex Steel Bolts, specifically designed for tough industrial applications. The company prides itself on its dedication to precision, durability, and adherence to global quality standards, providing bolts that offer outstanding strength and resistance to corrosion. Built to endure harsh conditions—like those found in marine, chemical, and high-pressure environments—Rinku Fasteners employs advanced manufacturing techniques and rigorous quality control to ensure their products perform reliably and last long. They cater to various sectors, including oil and gas, petrochemicals, desalination, and construction, solidifying their reputation as a trusted source for robust fastening solutions.
Duplex Steel Bolts are crafted from a well-balanced mix of austenite and ferrite, typically featuring elements like chromium, nickel, molybdenum, and nitrogen. This unique blend grants them exceptional resistance to corrosion, particularly against pitting and stress corrosion cracking. With high tensile strength, impressive hardness, and enhanced toughness, these bolts are perfect for high-pressure and high-temperature settings. Their dual-phase structure not only boosts mechanical stability but also ensures excellent weldability and oxidation resistance. In aggressive environments, Duplex Steel Bolts maintain their performance, giving them a significant edge over standard stainless steel fasteners.
Duplex Steel 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 % |
| Specifications | ASTM A479 & ASME SA479 |
| Standard | DIN, ASTM, BS and all International Standards |
| Length | 3 to 200 MM |
| Duplex Steel Nut and Bolts Size | M3 To M56 3/6″ to 2″ |
| Duplex Steel 2205 Machine Screws Size | M1.6 To M12 |
| Duplex Steel 2205 Washers Size | M3 To M56 3/6″ to 2″ |
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 Bolts find their place in various industries that require both high strength and remarkable corrosion resistance. They’re frequently used in the oil and gas industry, on offshore platforms, in petrochemical plants, and in desalination facilities, thanks to their ability to handle harsh marine and chemical conditions. Additionally, these bolts are essential in heat exchangers, pressure vessels, pipelines, and structural components that demand long-lasting durability.
At Rinku Fasteners, our duplex steel bolts are carefully installed to ensure a safe and secure delivery. Each bolt is individually wrapped with protective material and installed to prevent damage during transit. Our packaging includes clear labeling and barcoding for easy identification and inventory management. We use durable environmentally friendly materials to protect the integrity of the bolts and reduce environmental impact. Count on Rinku Fasteners to deliver your duplex steel bolts in the best possible condition, ready for immediate use.
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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