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Aria Fasteners is a leading manufacturer and supplier based in Hamilton, New Zealand, providing high-quality Super Duplex Threaded Rods for demanding industrial, marine, and chemical applications. Known for precision engineering, adherence to international standards, and strict quality control, the company serves industries such as oil and gas, petrochemical, chemical processing, and offshore infrastructure. Aria Fasteners delivers threaded rods that offer exceptional corrosion resistance, high mechanical strength, and long-term durability in harsh environments. Their focus on technical expertise, timely delivery, and customer satisfaction has made them a trusted provider of premium Super Duplex Steel fastening solutions worldwide. *(≈100 words)*
Super Duplex Threaded Rods are manufactured from high-performance duplex stainless steel alloys, typically S32760, containing 25–26% chromium, 6–7% nickel, 3–4% molybdenum, and nitrogen, with trace amounts of manganese and iron. This composition provides excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride-rich and seawater environments. Mechanically, they offer high tensile and yield strength, excellent hardness, and load-bearing capability. These rods are designed to provide reliable performance under heavy loads, high pressures, and extreme environmental conditions where both strength and corrosion resistance are essential. *(≈90 words)*
| 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.
Threaded rods made from Super Duplex Steel are essential in numerous performance related activities. In chemical processing, they control the contact with the aggressive chemicals and high pressure satisfactorily. In marine applications, they are able to withstand the effects of marine environment such as corrosion, thus providing durability. In the oil and gas industry, they offer secure fastening where stresses are high.
Super Duplex Threaded Rods are widely used in applications requiring high strength, durability, and corrosion resistance. They are commonly installed in flanged joints, structural assemblies, piping systems, pressure vessels, pumps, and valves in offshore platforms, petrochemical plants, chemical processing units, and oil and gas facilities. Their ability to resist oxidation, pitting, and stress corrosion cracking ensures long-term reliability even in sea
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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