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Mira Fasteners stands out as a top-notch manufacturer and supplier of **Super Duplex Steel Bolts** right in Kuala Lumpur, Malaysia. These fasteners are designed to be high-strength and corrosion-resistant, making them perfect for tough industrial settings. If you’re looking for bolts that can handle aggressive chemicals, saltwater, and extreme temperatures, you’ve come to the right place. Mira Fasteners offers a diverse selection of Super Duplex Steel Bolts in various sizes, thread types, and specifications, all adhering to global standards. Renowned for their durability, precision, and performance, these bolts find their way into industries like offshore oil and gas, petrochemicals, marine, and desalination.
Typically, Super Duplex Steel Bolts are crafted from UNS S32750 and S32760 grades. These alloys boast about 24–26% chromium, 6–8% nickel, 3–5% molybdenum, and nitrogen, which together create a dual-phase austenitic-ferritic microstructure. This unique composition provides the bolts with outstanding resistance to pitting, crevice corrosion, and chloride stress corrosion cracking. They also deliver impressive mechanical strength, with tensile strength reaching up to 800 MPa and yield strength surpassing 550 MPa. Plus, these bolts maintain excellent toughness and structural integrity, whether in high-temperature or cryogenic conditions, making them ideal for critical and corrosive applications.
| 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 bolts that are used in many high performance industries. In chemical processing, they are able to cope with the attack of aggressive chemicals and high pressures. In marine applications, they are able to withstand the effects of saltwater thus are long lasting. In the oil and gas industry, they offer secure fastening where there is high stress. Furthermore, Super Duplex Steel bolts are applied in power generation and construction because of their ability to withstand harsh conditions.
Super Duplex Steel Bolts are a go-to choice in environments where mechanical stress and corrosion resistance are top priorities. In the offshore and marine sectors, they’re perfect for assembling structural components, pumps, and valves that face seawater exposure. In chemical processing and petrochemical facilities, they secure pipelines, reactors, and equipment that deal with harsh chemicals. Their versatility extends to desalination units, heat exchangers, pressure vessels, and pulp & paper machinery. With their long service life, low maintenance needs, and reliability in extreme conditions, these bolts are the preferred fastening solution for demanding industrial 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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