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Puri Fasteners, a reputable manufacturer and supplier located in Chennai, specializes in top-notch Super Duplex Steel Bolts S32760, designed to meet the toughest demands of industrial applications. These bolts are celebrated for their incredible strength, durability, and impressive resistance to corrosion, making them perfect for environments that experience high pressure, high temperatures, and exposure to chlorides. Crafted with precision and in line with international quality standards, Puri Fasteners guarantees dependable performance and longevity. These S32760 bolts are widely utilized in sectors like oil and gas, marine, chemical, and power generation, providing secure and robust fastening solutions that ensure mechanical stability and safety in critical infrastructure and industrial machinery.
Super Duplex Steel Bolts S32760 are made from a high-chromium, high-molybdenum, nitrogen-rich alloy, featuring a balanced austenitic-ferritic structure that typically includes 25–26% chromium, 6–7% nickel, 3% molybdenum, and nitrogen. They boast outstanding mechanical properties such as high tensile and yield strength, excellent fatigue resistance, and remarkable protection against pitting, crevice corrosion, and chloride stress corrosion cracking. Their dual-phase microstructure offers exceptional toughness, thermal stability, and reliable long-term performance in harsh chemical, marine, and high-pressure industrial settings.
| Standard | DIN, ASTM, BS and all International Standards |
| Specifications | ASTM A479 & ASME SA479 |
| UNS S32760 Nut and Bolts Size | M3 To M56 3/6″ to 2″ |
| Length | 3 to 200 MM |
| Super Duplex Steel 2207 Machine Screws Size | M1.6 To M12 |
| Duplex Steel 2205 Washers Size | M3 To M56 3/6″ to 2″ |
| Tensile Strength(MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) | Hardness Rockwell C (HR C) | |
| Super Duplex Steel Bolts | 760 | 550 | 15 | 32 Max |
| Phosphorus | Sulphur | Silicon | Carbon | Manganese | Nickel | Molybdenum | Nitrogen | Copper | Chromium |
|---|---|---|---|---|---|---|---|---|---|
| 0.035 % max | 0.02 % max | 0.80 % max | 0.03% Max | 1.20 % max | 6.00 – 8.00 % | 3.00 – 5.00 % | 0.24 – 0.32 % | 0.50 % max | 24.0 – 26.0 % |
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.
These Super Duplex Steel Bolts S32760 are extensively used in offshore platforms, subsea installations, and marine engineering, where exposure to seawater and chloride-rich conditions is a significant concern. In the oil and gas sector, they find applications in pipelines, pumps, valves, heat exchangers, and pressure vessels. Chemical and petrochemical plants depend on these bolts for reactors, storage tanks, and equipment that handle aggressive media. They are also utilized in desalination plants, power generation facilities, and heavy industrial machinery, delivering secure, long-lasting, and high-performance fastening solutions even in extreme operational conditions.
At Puri Fasteners, our Super Duplex Steel Bolts S32760 are meticulously packaged to ensure they reach you in perfect condition. Each bolt is carefully inspected and sorted before being securely packed in high-quality, protective packaging. We use durable materials to safeguard against damage during transit and storage. Our packaging options include labeled boxes or crates, ensuring ease of identification and handling. This careful attention to packaging helps maintain the integrity and performance of our bolts throughout the supply chain.
Puri Fasteners is a leading manufacturer and supplier of high-quality fasteners in Chennai, India, with over 8 years of experience serving global industries.
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