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Mira Fasteners stands out as a trusted manufacturer and supplier of **Super Duplex Steel Nuts** right in the heart of Kuala Lumpur, Malaysia. They provide top-notch fastening solutions for industries that require outstanding strength and resistance to corrosion. These nuts are made from high-quality Super Duplex stainless steel, engineered to endure extreme conditions like high pressure, elevated temperatures, and harsh chemical environments. Catering to sectors such as oil & gas, petrochemicals, marine, desalination, and offshore construction, Mira Fasteners guarantees that every Super Duplex Steel Nut adheres to international quality standards, ensuring they perform reliably even in the toughest situations.
Typically, Super Duplex Steel Nuts are produced from grades like UNS S32750 and UNS S32760. Their makeup includes around 24–26% chromium, 6–8% nickel, 3–5% molybdenum, along with some nitrogen, which gives them remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking caused by chlorides. These nuts boast impressive mechanical strength, with yield strength exceeding 550 MPa and tensile strength reaching up to 800 MPa. The dual-phase (austenitic-ferritic) microstructure enhances their toughness and resistance to stress corrosion, making them perfect for both structural and critical fastening needs.
| 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 are used in many critical applications. In chemical processing they are able to handle the effects of aggressive chemicals and high pressures. In marine applications, they are immune to the effects of sea water thus providing long service life. In the oil and gas industry, they offer secure fastening where high stress is exerted. Also, Super Duplex Steel nuts are applied in power generation and construction sectors due to their high performance in harsh conditions.
Super Duplex Steel Nuts find their place in applications where high mechanical strength and exceptional corrosion resistance are a must. In the offshore and marine industries, they are perfect for subsea equipment, flanges, and structural joints that come into contact with seawater. In the chemical and petrochemical sectors, you’ll find them in reactors, piping systems, and pumps that deal with corrosive fluids. They’re also utilized in desalination plants, heat exchangers, and high-pressure vessels. Thanks to their outstanding durability and minimal maintenance requirements, Super Duplex Steel Nuts are a smart, cost-effective choice for challenging and demanding environments.
Mira Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kuala lumpur, Malaysia, with over 8 years of experience serving global industries.
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