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Murad Fasteners is a well-respected manufacturer and supplier based in Doha, Qatar, known for its top-notch Super Duplex Steel Nuts that are perfect for high-strength and corrosion-sensitive applications. With state-of-the-art manufacturing facilities and strict quality control measures, Murad Fasteners delivers nuts that guarantee precise threading, impressive load-bearing capacity, and a long lifespan. The company caters to various sectors, including oil and gas, offshore, petrochemical, marine, construction, and infrastructure, offering both standard and tailored nut solutions. Murad Fasteners is dedicated to adhering to international standards, providing competitive pricing, and ensuring timely delivery for projects both regionally and globally.
Super Duplex Steel Nuts are crafted from high-alloy steel grades that boast a well-balanced austenitic and ferritic microstructure. Their chemical makeup typically features higher levels of chromium, molybdenum, and nitrogen, which grant them remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. These nuts showcase exceptional mechanical properties, including very high tensile and yield strength, excellent fatigue resistance, and superior hardness. The duplex structure enhances toughness and stability, ensuring reliable performance even under high pressure, elevated temperatures, and harsh corrosive 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 Nuts find their place in applications where outstanding strength and corrosion resistance are crucial. They’re commonly used in oil and gas pipelines, offshore platforms, subsea equipment, petrochemical and chemical processing plants, marine structures, and desalination facilities. These nuts are perfect for flanged joints, pressure vessels, heat exchangers, and heavy structural assemblies that are exposed to seawater, chlorides, and aggressive chemicals. Their durability and reliability make them an excellent choice for critical industrial fastening applications that demand safety, longevity, and minimal maintenance.
At Murad Fasteners, we make sure that our Super Duplex Steel nuts are packed in a very special manner. Every nut is packed separately in protective materials to avoid any impact such as mechanical, chemical or microbial on the nuts during transportation. Our cartons are made of durable material and we provide customized packaging services for your products. Proper labeling and packing also help in identification and handling of the products, thus showing our seriousness in providing quality products in good condition.
Murad Fasteners is a leading manufacturer and supplier of high-quality fasteners in Doha, Qatar, with over 8 years of experience serving global industries.
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