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Double-Layer Metal Composite Bar Material - Titanium Clad, Copper, Factory Direct from China Suppliers

Baoji Special Steel Titanium Industry Co., Ltd. is a leading supplier in China, specializing in high-quality metal composite materials. Our product lineup includes titanium clad copper, zirconium clad copper, stainless steel clad copper, tantalum clad copper, and titanium clad aluminum. We offer innovative three-layer metal composite solutions and composite silk materials designed to provide exceptional performance. Our products are characterized by conductive metal bars, plates, and wires made from copper and aluminum, combined with outer corrosion-resistant layers of titanium, zirconium, nickel, and stainless steel. As a reputable factory, we are committed to delivering durable and reliable materials that meet the diverse needs of our customers

    Product Performance & Specification Range

    Baoji special steel titanium industry Co., Ltd. since 2001 start manufacture metal composite material series product, after 25 years of hard work development, we have set up a perfect specialized metal composite material production line.

    📋 Reference Standard: GB/T 12769-2015
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    Substrate Materials
    Copper T1, T2, Anaerobic Copper TU1, TU2, Aluminum, etc.
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    Clad Materials
    Titanium (Ti), Zirconium (Zr), Nickel (Ni), Tantalum (Tan), Stainless Steel (304, 316L), etc.
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    Clad Layer Thickness
    Conventional: 1.0 ~ 2.5 mm
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    Rectangular
    Width (20 ~ 150) × Thickness (6 ~ 30) mm
    Circle / Square / Wire
    Circle: Φ 8 ~ 50 mm
    Square: 10 ~ 30 mm
    Wire: Φ 2.0 ~ 8.0 mm
    ✅ Products can be customized according to customer requirements.

    Application Field Analysis

    Double-layer metal clad bar material — mainly titanium clad copper — not only ensures superior conductivity but also provides strong surface corrosion resistance. It is widely used in highly corrosive conductive environments such as electrochemical processing, electroplating, electrolysis, hydrometallurgy, PCB manufacturing, electrochemical industry, water treatment, and ocean engineering.

    • Electrochemistry and Corrosion Environment Electrode
      · Electrolytic industry:
      · Cathode roll: Used for producing electrolytic copper foil (a key raw material for lithium batteries and printed circuit boards), the titanium layer comes into contact with the corrosive electrolyte, and the copper layer provides high conductivity and thermal conductivity — one of the most significant applications of titanium-coated copper at present.
      · Other electrolytic electrodes: Used in the chlor-alkali industry and hydrometallurgy as insoluble anodes or special cathodes, balancing conductivity and corrosion resistance.
      · Cathodic protection system: As an anode bed material, used for corrosion prevention of facilities such as offshore platforms and pipelines; the titanium layer resists seawater corrosion, and the copper layer enhances the efficiency of current distribution.
    • 🔌 Special Conductive / Thermal Components
      · High-performance electronic devices:
      · Require contacts, connectors or heat dissipation substrates (such as power semiconductor modules) that are highly conductive but resistant to local corrosion.
      · Some vacuum equipment requires components that are both conductive and corrosion-resistant.
      · Welding and high-temperature tools:
      · Resistance welding electrodes, electrical discharge machining electrodes, etc. Copper provides excellent conductivity, and a titanium layer prevents high-temperature oxidation or adhesion.
    • 🌊 Marine and Chemical Equipment
      · Ship and seawater systems:
      · Used for manufacturing seawater coolers, heat exchanger tubesheets, etc. The titanium layer resists seawater corrosion, while the copper layer enhances heat conductivity and reduces costs (compared to all-titanium).
      · Chemical equipment:
      · Reactor linings, agitators, etc., used in situations where both corrosion resistance and rapid heat conduction are required.
    • 🔋 New Energy and High Technology Fields
      · Hydrogen fuel cell:
      · Bipolar plates or related components; the titanium layer is resistant to the corrosive environment inside the fuel cell, and the copper layer ensures high conductivity.
      · Nuclear industry:
      · Some nuclear reactors require materials that are resistant to radiation, corrosion-resistant, and have good thermal conductivity.
    • 🏗️ Other Special Applications
      · Decoration and Architecture:
      · The surface is in titanium, with its color and durability. The interior is made of copper, providing strength and weight reduction, suitable for high-end decoration or architectural components.
      · Medical Equipment:
      · It combines the biocompatibility of titanium and the antibacterial property of copper, suitable for special medical devices or implantable equipment (requiring strict verification of biocompatibility).

    Double-Layer Metal Clad Bar Material — Conclusion

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    Double-layer metal composite materials are not merely a simple "1+1". Instead, through advanced composite technologies, they achieve functional integration and performance amplification, successfully resolving the key engineering challenge that a single metal cannot simultaneously meet the requirements of "surface corrosion resistance" and "high conductivity of the bulk". They are particularly suitable for high-end and demanding industrial environments.

    Frequently Asked Questions (FAQ)

    • Q1 What is double-layer metal composite bar material?
      Double-layer metal composite bar material is a bimetal product manufactured by bonding two different metals — such as titanium and copper — together through advanced composite technologies (e.g., explosive welding, hot rolling, or diffusion bonding). The result is a single bar that combines the surface corrosion resistance of the outer metal with the high electrical and thermal conductivity of the inner metal, delivering performance that neither metal could achieve alone.
    • Q2 What substrate and clad material combinations are available?
      The substrate materials include Copper (T1, T2), Anaerobic Copper (TU1, TU2), Aluminum, and others. The clad materials available include Titanium (Ti), Zirconium (Zr), Nickel (Ni), Tantalum (Tan), and Stainless Steel (304, 316L). Custom combinations can also be produced according to specific customer requirements.
    • Q3 What size and shape specifications are available for the composite bar?
      The product is available in multiple cross-section shapes and sizes: Rectangular — Width 20~150 mm × Thickness 6~30 mm; Circular — Diameter Φ 8~50 mm; Square — 10~30 mm; Wire — Diameter Φ 2.0~8.0 mm. The clad layer thickness is conventionally 1.0~2.5 mm. Custom sizes outside these ranges can be discussed with the manufacturer.
    • Q4 Why is titanium-clad copper the most common combination?
      Titanium-clad copper is the most widely used combination because it perfectly addresses two conflicting industrial demands: copper provides outstanding electrical conductivity and thermal conductivity, while titanium offers exceptional corrosion resistance in aggressive environments such as seawater, chlorine solutions, and acidic electrolytes. Together, they are ideal for electrodes, cathode rolls, cathodic protection systems, and chemical processing equipment.
    • Q5 What quality standard does the product comply with?
      The double-layer metal composite bar material is manufactured in accordance with the Chinese national standard GB/T 12769-2015. Baoji Special Steel Titanium Industry Co., Ltd. has been producing metal composite materials since 2001 and has over 25 years of experience in establishing a complete, specialized production line for these products.
    • Q6 Can the composite bar material be customized for specific industrial applications?
      Yes. Products can be fully customized according to customer requirements, including the choice of substrate and clad materials, cross-section shape, dimensions, and clad layer thickness. Whether for electrochemical electrodes, marine engineering, hydrogen fuel cells, nuclear applications, or medical devices, the manufacturer can tailor the specifications to meet the demands of specific high-end industrial environments.