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The Fasteners Mart, established in Mumbai, India, is a reliable supplier and exporter of industrial fasteners, well-known for providing better quality and accuracy. One of their extensive product offerings is the Super Duplex Steel Bolt S32750, which is manufactured from UNS S32750 super duplex stainless steel. These bolts are in many shapes and forms, namely hex bolts, anchor bolts, and special geometries. As known for exceptional resistance to corrosion, high strengths, and extensive service life, these bolts extensively find applications where demanding conditions like offshore platforms, petrochemical plants, and marine structures dominate.
Super Duplex Steel Bolts S32750 consist of about 25% chromium, 7% nickel, 4% molybdenum, 0.3% nitrogen, and balance iron, with better corrosion and pitting resistance. These bolts possess remarkable mechanical strength with tensile strength of 800–1000 MPa and yield strength of over 550 MPa. Their density is of the order of 7.8 g/cm³, and they possess superior fatigue strength and stress corrosion cracking resistance. Having a melting point of around 1350°C, they exhibit strength in high-temperature and high-pressure conditions.
| 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 Bolts S32750 are suitable for use in marine, offshore, and oil & gas applications because of their remarkable resistance to stress cracking and corrosion due to chloride. They find application in heat exchangers, subsea equipment, desalination units, and pressure vessels where the requirements are durability and strength. In chemical processing, they sustain aggressive conditions involving strong acids and high temperatures. Their mechanical integrity and corrosion resistance also make them ideal for use in pulp and paper mills, power generation units, and structural assemblies in demanding industrial environments.
The Fasteners Mart ensures prompt global delivery of Super Duplex Steel Bolts S32750 through reliable logistics partners. Each bolt is carefully packed in moisture-resistant wrapping, placed in foam-lined cartons or sturdy wooden crates, and labeled for easy identification. Custom packaging solutions are also offered to meet specific client and export requirements.
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
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