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Punit Fasteners, a reputable manufacturer and supplier located in Delhi, India, is all about providing top-notch Super Duplex Steel Bolts S32750. These bolts are perfect for industries that need high strength, durability, and outstanding corrosion resistance. You’ll find them commonly used in marine, offshore, oil and gas, and chemical processing sectors, thanks to their reliable performance in tough environments. With a unique dual-phase microstructure of austenite and ferrite, these bolts stand up well against pitting, crevice corrosion, and stress corrosion cracking. Punit Fasteners makes sure to manufacture them according to international standards, ensuring precision, longevity, and dependable performance for critical fastening needs.
Super Duplex Steel Stud Bolts S32750 offer outstanding mechanical strength and exceptional corrosion resistance, even in harsh environments. Their high chromium and molybdenum content ensures superior resistance to pitting and crevice corrosion. With excellent fatigue resistance and high tensile strength, these stud bolts are ideal for high-pressure and high-temperature applications. They also provide excellent weldability and resistance to stress corrosion cracking, making them reliable and durable for demanding industrial 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.
The Super Duplex Steel Bolts S32750 are crafted from a well-balanced mix of about 24–26% chromium, 6–8% nickel, 3–4% molybdenum, nitrogen, and iron, which gives them remarkable corrosion resistance and strength. They boast a tensile strength of around 800 MPa, along with excellent impact toughness and resistance to chloride-induced corrosion. Weighing in at about 7.8 g/cm³, they’re reliable even in high-pressure and high-temperature situations. Their impressive mechanical properties and ability to resist fatigue and oxidation make them a go-to choice for offshore platforms, marine engineering, desalination plants, and chemical processing facilities.
Super Duplex Steel Bolts S32750 are widely used in industries that require strong and durable fastening solutions. In the oil and gas sector, they’re essential for subsea systems and offshore rigs that face harsh seawater conditions. The marine and shipbuilding industries rely on them for their exceptional resistance to seawater corrosion. In chemical processing plants, they excel in handling corrosive chemicals and high temperatures. These bolts are also trusted in desalination, structural engineering, and power generation projects, where strength, reliability, and corrosion resistance are absolutely vital.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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