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The Fasteners Mart, located in Mumbai, India, is a foremost supplier of industrial fasteners renowned for quality, precision, and reliability. One of its high-end offerings is the Super Duplex Threaded Rod, produced in grades such as UNS S32750 and S32760. These rods have a cylindrical profile with uninterrupted threading, made from Super Duplex stainless steel, possessing outstanding strength, superior corrosion resistance, and high durability. Designed to work in aggressive and corrosive conditions, these rods are suitable for use in marine, offshore, petrochemical, and high-pressure systems.
Super Duplex Threaded Rods (UNS S32750/S32760) consist of chromium (~25%), nickel (~7%), molybdenum (~4%), nitrogen, and iron with a two-phase microstructure consisting of austenite and ferrite. Super Duplex rods provide good tensile strength up to 800 MPa as well as good yield strength of around ~550 MPa alongside superb corrosion resistance as well as stress corrosion cracking resistance. Its density is 7.8 g/cm³, melting point around 1350°C, and high thermal conductivity. Their ductility, corrosion resistance, and strength make them ideal for highly stressful, chemically exposed applications.
| 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.
Offshore oil and gas platforms, subsea facilities, and marine structures all find widespread use with Super Duplex Threaded Rods on account of their impressive corrosion as well as pitting resistance. For chemical and petrochemical industry applications, they secure elements facing aggressive media along with higher pressure. These rods also play a crucial role in desalination plants, heat exchangers, and pulp and paper mills, where strength and durability are important. Their resistance to chloride-induced stress corrosion cracking and high mechanical strength make them a perfect option for demanding, safety-critical, and corrosive applications.
The Fasteners Mart provides safe and timely shipment of Super Duplex Threaded Rods globally. The rods are packaged with anti-corrosion wraps, bubble cushioning, and put into robust export-grade cartons or wooden crates to avoid damage during shipping. Specialized packaging and labeling can be provided to accommodate project-specific and international shipping 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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