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Super Duplex Steel stud bolts are available from The Fasteners Mart, which are manufactured tThe Fasteners Mart, Mumbai, India, is a prominent supplier of high-grade fasteners offering a comprehensive assortment of products to oil and gas, petrochemical, marine, and construction industries. The company is renowned for its expertise in Super Duplex Steel stud bolts, which are recognized for their excellent strength, corrosion resistance, and longevity. Constructed from a mix of ferritic and austenitic stainless steel alloys, bolts of grades 2507 and 2205 are manufactured and sold. Being highly durable due to their variety of shapes and forms, bolts can be both fully threaded as well as in hexagonal, custom designs based on requirements.o be extremely high quality for use in the harshest conditions. These stud bolts are made from Super Duplex Steel which is a combination of austenitic and ferritic stainless steels that make these bolts very strong, corrosion resistant and very durable. Our Super Duplex Steel stud bolts are suitable for chemical processing, marine, and oil and gas industries due to their ability to provide secure fastening in harsh environments.
Super Duplex Steel stud bolts consist of a mixture of 25-30% chromium, 3-5% molybdenum, and 4-7% nickel, providing improved strength and resistance to corrosion. These bolts possess tensile properties ranging from 700 MPa to 1,000 MPa and yield properties ranging from 500 MPa to 750 MPa. Their high chromium content gives them resistance to crevice corrosion and pitting, and the molybdenum increases resistance to chloride stress corrosion cracking. Super Duplex Steel stud bolts also exhibit top-notch fatigue strength, impact tolerance, and stability in high temperature applications, such that they perform well under hard 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 stud bolts find applications in those industries where high-strength, corrosion-free fasteners are needed. These bolts can be found in offshore oil and gas platforms, desalination plants, chemical processing plants, and power generation plants. Super Duplex Steel stud bolts are the most suitable for supporting critical pieces of equipment like pressure vessels, reactors, heat exchangers, and pipelines that are subjected to high pressure, corrosive fluids, and high temperatures. Their superior resistance to chloride stress corrosion makes them an ideal choice in marine and chemical environments where durability and long-term performance are critical.
We provide secure and prompt delivery services for Super Duplex Steel stud bolts, ensuring that they are delivered to clients in optimal condition. Our packaging options include HDPE bags, corrugated boxes, and wooden crates, which ensure protection from damage while in transit. Each pack is tightly sealed, ensuring secure and efficient shipping of your fasteners.
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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