Duplex Pipe Fittings

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What is Duplex Steel in Detail

Duplex Steel, a marvel in metallurgy, combines the best of both austenitic and ferritic stainless steels. Characterized by high strength, corrosion resistance, and exceptional weldability, Duplex Steel is the material of choice for demanding applications in various industries.

Types of Duplex Steel Grades

Metco Overseas offers various Duplex Steel grades to meet specific industrial needs.

UNS S31803 (F51)

A widely used Duplex Steel grade with excellent corrosion resistance and high strength.

UNS S32205 (F60)

Known for its enhanced corrosion resistance and superior weldability, making it suitable for critical applications.

Specification of Duplex Steel

Metco Overseas sets the industry standard for Duplex Steel, providing detailed specifications to meet the stringent requirements of diverse applications.

Property	Value
Material Type	Duplex Stainless Steel (UNS S31803/S32205)
Standard	ASTM A182, ASTM A276, ASTM A479, or Custom
Density	7.805 g/cm³
Tensile Strength	620 MPa (minimum)
Yield Strength	450 MPa (minimum)
Elongation	25% (minimum)
Hardness (Brinell)	217 HB (maximum)
Corrosion Resistance	Excellent in chloride environments

Chemical Components of Duplex Steel

Element	Percentage Composition
Chromium (Cr)	22-23%
Nickel (Ni)	4.5-6.5%
Molybdenum (Mo)	3-3.5%
Nitrogen (N)	0.14-0.20%
Others	Iron (Fe), Manganese (Mn), Silicon (Si), Sulfur (S), Phosphorus (P)

Mechanical Properties of Duplex Steel

Property	Value
Duplex Phase Ratio	50:50 (Ferrite:Austenite)
Modulus of Elasticity	200 GPa
Thermal Conductivity	19 W/m·K (20°C)
Specific Heat Capacity	460 J/kg·K (20°C)

Products Available in Duplex Steel

Square Bar : Duplex Steel Square Bar offers exceptional strength and corrosion resistance, making it ideal for structural and machining applications.
Hex Bar : Duplex Steel Hex Bar combines the strength of duplex steel with the versatility of hexagonal bars, suitable for various applications.
Forged Bar : Duplex Steel Forged Bar ensures superior strength and durability for critical applications in the oil and gas industry, chemical processing, and more.
Threaded Bar : Duplex Steel Threaded Bar provides high-strength and corrosion resistance, making it suitable for applications in harsh environments.
Round Bar : Duplex Steel Round Bar offers a balanced combination of strength and formability, suitable for a wide range of applications.
Steel Pipes : Duplex Steel Pipes deliver corrosion resistance and high strength, making them ideal for applications in chemical processing, oil and gas, and more.
Galvanized Steel or Iron Pipes : Duplex Steel Galvanized Pipes provide additional corrosion resistance, making them suitable for outdoor and high-moisture environments.
Cast Iron Pipes : Duplex Steel Cast Iron Pipes offer durability and corrosion resistance, making them suitable for water and sewage systems.
Concrete Cement Pipes : Duplex Steel Concrete Cement Pipes ensure longevity and resistance to harsh environmental conditions.
Plasticized Polyvinyl Chloride (PVC) Pipes : Duplex Steel PVC Pipes combine corrosion resistance with lightweight properties, suitable for various plumbing applications.
Asbestos Cement Pipes : Duplex Steel Asbestos Cement Pipes offer a balance of strength and corrosion resistance for water and sewage systems.
Bolts : Duplex Steel Bolts provide high tensile strength and corrosion resistance for secure fastening in various applications.
Screws : Duplex Steel Screws offer reliable fastening with corrosion resistance, suitable for a wide range of applications
Nuts : Duplex Steel Nuts ensure secure fastening in critical applications, providing both strength and corrosion resistance.
Washers : Duplex Steel Washers provide a reliable means of distributing loads and preventing corrosion between connected parts.

Rivets : Duplex Steel Rivets offer a durable and corrosion-resistant solution for joining materials in various applications.
Square Bar : Duplex Steel Square Bar combines exceptional strength with corrosion resistance, ideal for structural and machining applications requiring robust materials.
Hex Bar : Offering the strength of duplex steel in a versatile hexagonal form, Duplex Steel Hex Bar suits various applications, ensuring durability and adaptability.
Forged Bar : Duplex Steel Forged Bar ensures superior strength and durability, vital for critical applications in industries like oil, gas, and chemical processing.
Threaded Bar : Providing high-strength and corrosion resistance, Duplex Steel Threaded Bar is well-suited for applications in harsh environments, ensuring reliability.
Round Bar : Duplex Steel Round Bar offers a balanced combination of strength and formability, suitable for a wide range of applications requiring both properties.
Steel Pipes : Duplex Steel Pipes offer corrosion resistance and high strength, making them ideal for demanding applications in chemical processing and the oil and gas industry.
Galvanized Steel or Iron Pipes : Duplex Steel Galvanized Pipes enhance corrosion resistance, making them suitable for outdoor and high-moisture environments.
Cast Iron Pipes : Duplex Steel Cast Iron Pipes provide durability and corrosion resistance, ideal for water and sewage systems where reliability is paramount.
Concrete Cement Pipes : Offering longevity and resistance to harsh environmental conditions, Duplex Steel Concrete Cement Pipes are crucial for infrastructure applications.
Plasticized Polyvinyl Chloride (PVC) Pipes : Combining corrosion resistance with lightweight properties, Duplex Steel PVC Pipes serve various plumbing applications effectively.
Asbestos Cement Pipes : Duplex Steel Asbestos Cement Pipes strike a balance between strength and corrosion resistance, essential for water and sewage systems.
Bolts, Screws, Nuts, Washers, Rivets: Duplex Steel fasteners provide high tensile strength and corrosion resistance, ensuring secure and durable connections in diverse applications.

Why Metco Overseas is Best When it Comes to Duplex Steel Products

Quality Assurance: Metco Overseas ensures that Duplex Steel products meet or exceed international standards, providing reliability and durability.
Customization: We offer a wide range of Duplex Steel products with customizable sizes, grades, and surface finishes to match unique project specifications.
Global Reach: As a trusted international supplier, we deliver Duplex Steel products worldwide, ensuring timely and reliable service.
Expertise and Experience: With years of experience, Metco Overseas possesses the knowledge to guide clients in selecting the right Duplex Steel products for their unique applications.
Innovation: Metco Overseas embraces innovation, continually exploring new ways to enhance Duplex Steel properties and applications.

Metco Overseas stands as a premier provider of Duplex Steel products, offering unmatched quality, customization, and expertise to meet the dynamic needs of various industries globally. Contact us today to discover how our Duplex Steel products can elevate the performance and reliability of your projects.