Duplex Steel Nuts

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Duplex Steel Nuts Manufacturer and Supplier in Kinshasa, Congo

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Mukau Fasteners, a trusted manufacturer and supplier based in Kinshasa, Congo, specializes in providing top-grade Duplex Steel Nuts known for their exceptional strength and corrosion resistance. These nuts are precisely engineered to deliver superior fastening performance in demanding industrial environments. With a commitment to quality and precision, Mukau Fasteners ensures every Duplex Steel Nut meets international standards. Ideal for marine, chemical, and oil & gas industries, our nuts are designed to withstand high pressure and harsh conditions, ensuring reliability and long-term durability in every application.

 

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Duplex Steel Nuts are composed mainly of chromium (around 22%), nickel (5–6%), and molybdenum (3%), with nitrogen added for enhanced strength and corrosion resistance. The duplex microstructure provides both ferritic and austenitic characteristics, offering high tensile strength (up to 800 MPa) and excellent yield strength (around 450 MPa). These nuts exhibit superior resistance to stress corrosion cracking, pitting, and crevice corrosion, making them ideal for use in chloride-rich and high-temperature environments.

 

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Duplex Steel Nuts Mechanical Properties

Duplex Steel Nuts Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
7.8 g/cm3 1350 °C (2460 °F) Psi – 80000 , MPa – 550 Psi – 116000 , MPa – 800 15 %

Duplex Steel Nuts Specifications

Specifications ASTM A479 & ASME SA479
Standard DIN, ASTM, BS and all International Standards
Length 3 to 200 MM
Duplex Steel Nut and Bolts Size M3 To M56 3/6″ to 2″
Duplex Steel 2205 Machine Screws Size M1.6 To M12
Duplex Steel 2205 Washers Size M3 To M56 3/6″ to 2″

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Commited to High Quality Service

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.

Duplex Steel Nuts are widely used in industries requiring strong and corrosion-resistant fastening solutions. They are ideal for chemical processing equipment, marine environments, offshore oil rigs, desalination plants, and structural frameworks. These nuts perform exceptionally well in heat exchangers, pressure vessels, and pipelines exposed to harsh chemicals and seawater. Their unique combination of strength, toughness, and resistance to corrosion ensures durability and reliability, even in the most aggressive conditions. Duplex Steel Nuts are perfect for applications where safety, longevity, and performance are top priorities.

 
 

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Types of Duplex Steel Nuts

Duplex Steel Hex Nuts
Duplex Steel Coupling Nuts
Duplex Steel Coupling Nuts
Duplex Steel Flange Hex Nuts
Duplex Steel Heavy Hex Nuts
Duplex Steel Lock Nuts

Mukau Fasteners use duplex steel frames that are carefully installed to ensure optimal safety and comfort. Each nut is carefully encased in hard clear waste materials to ensure quality and prevent damage during transport. Our packaging includes clear labels with detailed information for easy identification and handling. Designed to withstand shipping conditions, our packaging assures that double-sided steel frames arrive in pristine condition, ready to be shipped will be readily used in complex mechanical applications. Count on Mukau Fasteners for reliable and safe fastening.

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Aerospace Industry
Petrochemical Industry
Defence Industry

Duplex Steel Nuts Applications