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Mira Fasteners stands out as a top-notch manufacturer and supplier of **Super Duplex Steel Washers** right in the heart of Kuala Lumpur, Malaysia. They specialize in high-quality fastening components that are built to deliver exceptional strength and resist corrosion. These washers are designed to thrive in tough environments where corrosion and stress are a given, making them a go-to choice in industries like oil & gas, marine, offshore platforms, petrochemical processing, and desalination plants. Mira Fasteners offers a wide range of Super Duplex Steel Washers in various sizes and standards, ensuring they meet high standards for dimensional accuracy, durability, and long-lasting performance, even in the harshest conditions.
Typically crafted from UNS S32750 or S32760 grades, these washers boast a chemical makeup of about 24–26% chromium, 6–8% nickel, 3–5% molybdenum, and nitrogen. This well-balanced composition gives them remarkable resistance to pitting, crevice corrosion, and chloride stress corrosion cracking. With a yield strength exceeding 550 MPa and tensile strength reaching up to 800 MPa, they offer impressive mechanical strength. Their unique austenitic-ferritic microstructure blends toughness with strength, making them ideal for applications that require both structural integrity and resistance to harsh chemicals or seawater.
| 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 washers are used for many high-performance applications. In chemical processing, they efficiently control the interaction with corrosive chemicals and high pressure. In marine environments, they do not corrode in sea water, hence, they provide long service to the equipment. In the oil and gas industry, they offer safe and effective sealing and spacing where stress is high. In addition, Super Duplex Steel washers are applied in power generation and construction industries due to their high performance in harsh conditions.
Super Duplex Steel Washers find their place in a variety of demanding industrial applications. In the offshore oil and gas sector, they are crucial for assembling equipment that faces the challenges of seawater and high-pressure conditions. In the chemical and petrochemical industries, these washers ensure a secure, corrosion-resistant seal for flanged joints, valves, and heat exchangers. They also play a vital role in marine engineering, desalination plants, and the pulp & paper industries, where durability, corrosion resistance, and low maintenance are essential. Their reliability in extreme conditions makes them a top choice for safety-critical fastening systems.
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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