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Murad Fasteners has made a name for itself as a trusted manufacturer and supplier in Doha, Qatar, specializing in a dependable range of Super Duplex Steel Washers designed for high-strength and corrosive environments. With state-of-the-art manufacturing facilities and rigorous quality assurance practices, Murad Fasteners is known for delivering washers that boast excellent dimensional accuracy, effective load distribution, and impressive longevity. The company serves various sectors, including oil and gas, offshore, petrochemical, marine, construction, and infrastructure, offering both standard and customized washer solutions that meet international standards, all while ensuring competitive pricing and timely delivery for a variety of industrial projects.
Super Duplex Steel Washers are crafted from high-alloy steel grades that feature a well-balanced austenitic and ferritic microstructure. Their chemical makeup typically includes high levels of chromium, molybdenum, and nitrogen, which significantly boost their resistance to pitting, crevice corrosion, and stress corrosion cracking. These washers are known for their remarkable mechanical properties, including high tensile and yield strength, exceptional hardness, and superior fatigue resistance. The duplex structure enhances toughness and stability, allowing these washers to perform reliably 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 Washers find their place in applications that demand strong, corrosion-resistant load distribution in bolted joints. They’re commonly used in oil and gas pipelines, offshore platforms, marine structures, chemical and petrochemical plants, desalination facilities, and power generation systems. These washers play a crucial role in protecting joint surfaces and maintaining fastening integrity when faced with seawater, chlorides, and aggressive chemicals. Additionally, they are utilized in heavy construction, pressure vessels, heat exchangers, and structural assemblies where durability, safety, and long-term performance are essential.
At Murad Fasteners, we make sure that our Super Duplex Steel washers are packed in the best way possible. Individual protection of each washer is done to avoid any form of damage, corrosion, or contamination that may occur during transportation. We employ the sturdy cartons and allow customization of packaging depending on your requirements. Proper labeling and packing enable identification and handling of the products as per the customers’ requirements, which are part of our mission to provide 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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