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At Rinku Fasteners, headquartered in the bustling industrial hub of Kolkata, we take pride in blending engineering precision with genuine customer-focused craftsmanship. Our Super Duplex Steel Bolts S32760 are designed to meet the highest standards of reliability in demanding environments. Each bolt is manufactured with care, ensuring consistent performance and long service life. With a commitment to quality and innovation, we strive to support industries that depend on robust fastening solutions capable of withstanding extreme conditions without compromise.
Super Duplex Steel Bolts S32760 are crafted from a carefully balanced alloy rich in chromium, molybdenum, and nitrogen, with added tungsten for enhanced corrosion resistance. Their dual-phase austenitic-ferritic structure delivers superior strength and excellent resistance to pitting, crevice corrosion, and chloride-induced stress cracking. These bolts exhibit high tensile and yield strength, outstanding fatigue resistance, and exceptional stability across varying temperature and pressure ranges. This combination of advanced composition and robust mechanical performance ensures dependable operation in the toughest industrial environments.
| 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.
Super Duplex Steel Bolt S32760 is used in high-pressure and corrosive environments, including oil, gas, marine, and chemical industries. Their high strength and corrosion resistance make them ideal for applications such as offshore platforms, pipelines, pressure vessels, and industrial equipment These bolts are also used in construction and structural applications works well and lasts. Their resistance to pitting, crevice corrosion and stress-corrosion cracking ensures reliable performance under extreme conditions.
Super Duplex Steel Bolts S32760 are widely chosen for applications where durability, mechanical strength, and corrosion resistance are critical. They are extensively used in offshore oil and gas platforms, marine engineering systems, subsea equipment, and desalination plants. Their resilience in chloride-rich and highly corrosive environments makes them ideal for pumps, pressure vessels, chemical processing machinery, and structural supports. In high-pressure piping assemblies and heat exchangers, these bolts help maintain secure connections and long-term integrity. Engineers value them for delivering consistent, reliable performance in mission-critical installations where safety and longevity cannot be compromised.
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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