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Al Vishwas Nickel Alloys, a leading manufacturer and supplier based in Dubai, UAE, focuses on premium **Super Duplex Steel Washers** designed for challenging industrial uses. Well-known for their remarkable resistance to corrosion, notable strength, and enduring durability, these washers are produced using advanced manufacturing methods and stringent quality control practices. Al Vishwas Nickel Alloys caters to industries that demand dependable, high-performance parts able to withstand severe chemical, marine, and offshore environments. With a strong emphasis on accuracy, technical expertise, and prompt delivery, the company ensures that its Super Duplex Steel Washers deliver steady performance, superior mechanical integrity, and trustworthy service for essential bolted connections.
Super Duplex Steel Washers feature a distinctive duplex microstructure that combines austenitic and ferritic phases, with a carefully controlled balance of chromium, molybdenum, nickel, nitrogen, and iron. This particular composition provides outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. In terms of mechanical properties, these washers offer exceptionally high tensile and yield strength, together with excellent toughness and stability over a wide temperature range. Their superior fatigue resistance, hardness, and durability make them well suited for demanding chemical, marine, and offshore environments. These washers retain their structural integrity and mechanical reliability even under heavy stress and tough operating 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″ |
| 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 % |
| Material | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| Super Duplex Steel | 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
| Super Duplex Steel | 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
At Al Vishwas Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Washers in Dubai, UAE, delivering advanced solutions for every one of your piping requirements. Our modern manufacturing facilities are strategically positioned in the UAE, enabling us to keep an extensive stock of more than 16,000 tons of top-quality materials available on hand. We are committed to supplying outstanding products and services, guaranteeing dependability and excellence for our clients worldwide.
Reach out to us for a fast quote tailored to your requirement.
Super Duplex Steel Washers are widely applied in industries needing fasteners that resist corrosion, offer high strength, and last long. Within marine and offshore environments, they play a vital role in bolted joints subjected to seawater, chlorides, and other demanding conditions.
