Duplex Steel Nuts S31803

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Duplex Steel Nuts S31803 Manufacturer and Supplier in Kinshasa, Congo

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Mukau Fasteners, based in Kinshasa, Congo, is a prominent manufacturer and supplier of Duplex Steel S31803 Nuts, known for their excellent strength, corrosion resistance, and durability. Our Duplex Steel S31803 Nuts are designed to deliver outstanding performance in environments exposed to high pressure, temperature, and corrosive elements. Manufactured to international standards, these nuts provide a perfect balance of mechanical strength and toughness. At Mukau Fasteners, we focus on precision engineering and quality assurance to supply dependable fastening solutions for industries such as chemical processing, marine, oil and gas, and power generation.

 

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Table of Contents

Duplex Steel S31803 Nuts are composed mainly of chromium (21–23%), nickel (4.5–6.5%), and molybdenum (2.5–3.5%), with additions of nitrogen and manganese for improved corrosion resistance and strength. They exhibit a duplex microstructure combining austenitic and ferritic phases, resulting in excellent mechanical properties. These nuts have high tensile strength, typically around 620 MPa, and good yield strength, along with superior resistance to pitting, crevice corrosion, and stress cracking. They maintain stability and performance even in chloride-rich and acidic environments.

 

Duplex Steel Nuts S31803 Chemical Composition

  S31803 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 %

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Duplex Steel Nuts S31803 Mechanical Properties

  S31803 C N P Si Mn Mo Fe Cr S Ni
1.0 0.03 0.02 2.0 3.0 – 3.5 22.0 – 23.0 0.03 4.5 – 6.5 0.14 – 0.2 Bal

Duplex Steel Nuts S31803 Specifications

Specifications ASTM A479 / ASME SA479
Standards DIN, ASTM, BS and all International Standards
Length 3 mm to 200 mm
Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Type Hex Head Bolts, Square Bolts, U bolts, Eyebolts, T bolt, Hex Bolt, Lag Bolts, Countersunk Bolts, Hex Head nuts, Square nuts, Locknuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts

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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 S31803 Nuts are widely used in industries where both strength and corrosion resistance are critical. They are ideal for applications in chemical processing plants, offshore oil platforms, desalination units, and heat exchangers. These nuts are also used in marine environments, paper and pulp industries, and power generation systems. Their ability to withstand high pressure and harsh conditions makes them suitable for pipelines, pressure vessels, and structural assemblies. Duplex Steel S31803 Nuts ensure secure fastening and long service life in demanding environments, offering reliability and efficiency across diverse industrial operations.

 
 

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Types of Duplex Steel Nuts S31803

Duplex Steel Hex Nuts S31803
Duplex Steel Coupling Nuts S31803
Duplex Steel Square Nuts S31803
Duplex Steel Flange Hex Nuts S31803
Duplex Steel Heavy Hex Nuts S31803
Duplex Steel Lock Nuts S31803

At Mukau Fasteners, Duplex Steel Nuts S31803 are meticulously packaged to ensure their integrity and quality during transit. Each nut is individually inspected and wrapped in protective materials to prevent damage. For bulk orders, nuts are securely packed in durable, corrosion-resistant containers. Our packaging solutions are designed to maintain product excellence, safeguarding against environmental factors and ensuring that the nuts arrive in optimal condition. Trust Mukau Fasteners for secure and reliable packaging of your high-quality components.

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Aerospace Industry
Petrochemical Industry
Defence Industry

Duplex Steel Nuts S31803 Applications