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Al Vishwas Nickel Alloys is a reliable manufacturer and supplier of premium Duplex Steel Fasteners in Dubai, UAE, delivering high-strength fastening solutions for challenging industrial settings. Our fasteners are designed with outstanding precision and made from durable duplex stainless steel, guaranteeing remarkable durability, corrosion resistance, and lasting performance. With a firm dedication to quality and innovation, we supply an extensive selection of Duplex Steel Fasteners suited for diverse mechanical and structural uses. Supported by dependable customer service and prompt delivery, Al Vishwas Nickel Alloys continues to be a favored partner for industries in search of trustworthy and high-performance fastening products.
Duplex Steel Fasteners generally consist of 22–25% chromium, 5–7% nickel, 3–4% molybdenum, and a balanced nitrogen level, which grants them exceptional corrosion and pitting resistance. Their two-phase austenitic-ferritic microstructure delivers greater mechanical strength, featuring high yield and tensile figures that exceed those of many conventional stainless steels. These fasteners retain remarkable toughness, good weldability, and robust resistance to stress corrosion cracking, keeping them durable even in chloride-heavy or high-pressure settings. The blend of strength, stability, and corrosion resistance guarantees long-lasting, dependable performance across a wide range of industrial applications.
| Specifications | : | ASTM A182 / ASME SA182 |
| Size | : | 1/8″ NB TO 24″ NB |
| Standards | : | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | : | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Standard | : | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Grades | : | S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F6 |
| 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 % |
| Grade | YS (MPa) | UTS (MPa) | % Elongation | Hardness(BHN) |
| UNS S32750 | 550 min. | 795 min. | 15 min. | 310 max. |
| UNS S32760 | 550 min. | 750 min. | 25 min. | 270 max. |
At Al Vishwas Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Fasteners in Dubai, UAE, delivering advanced solutions for every one of your piping requirements. Our modern manufacturing facilities are strategically situated in the UAE, enabling us to keep an extensive stock of more than 16,000 tons of top-quality materials on hand and ready to ship. We are committed to supplying outstanding products and services, guaranteeing dependability and excellence for customers around the world.
Reach out to us for a fast quote tailored to your requirement.
Duplex Steel Fasteners are extensively employed across sectors that demand high strength, corrosion resistance, and reliable fastening performance. Owing to their outstanding resistance to chlorides and seawater, they are frequently seen in offshore platforms, subsea equipment, and marine environments. These fasteners also serve chemical processing plants, oil and gas pipelines, desalination units, and power generation systems. Because of their durability, they work well for pressure vessels, heat exchangers, structural assemblies, and heavy machinery. Furthermore, Duplex Steel Fasteners are favored in pulp and paper mills, wastewater treatment facilities, and other industries that call for secure, long-lasting fastening solutions.
