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Multilayer Metal Composite Bar Material: Titanium, Zirconium & Stainless Steel Clad by China's Leading Suppliers and Factory

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Welcome to Baoji Special Steel Titanium Industry Co., Ltd., a leading supplier and factory of high-quality metal composite materials in China. Our extensive product range includes titanium clad copper, zirconium clad copper, stainless steel clad copper, tantalum clad copper, and titanium clad aluminum. Additionally, we specialize in three-layer metal composite materials, such as titanium clad copper clad steel and stainless steel clad copper clad steel products. All our materials are manufactured using advanced rolling composite processes, ensuring exceptional durability and performance. Trust us for your metal composite needs and experience the quality that makes us a top choice among suppliers in the industry.

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    Product Performance & Specification Range

    Baoji Special Steel Titanium Industry Co., Ltd. has been manufacturing metal composite material series products since 2001. After 25 years of dedicated development, we have established a complete and specialized metal composite material production line.

    Reference Standard: GB/T 12769-2015

    Clad Materials

    Titanium GR1, GR2, TA1, TA2
    Stainless Steel (304, 316L), etc.

    Intermediate Layer Materials

    Copper T1, T2
    Anaerobic Copper TU1, TU2, etc.

    Inner Layer Materials

    Stainless Steel (304, 316L)
    Steel (Q235), etc.

    Main Cross-Section Shapes & Sizes (mm)

    Rectangular: Width (20–150) × Thickness (6–30)
    Circle: Φ (8–50)
    Square: (10–30)

    Products can be customized according to the customer's requirements.

    Product Display

    High-Performance and Low-Cost Product

    Core Functions of Each Layer & Comprehensive Performance After Composite
    The essence of this structure lies in the firm combination of the three layers through metallurgical methods (such as explosive cladding and rolling cladding), achieving a performance of "1 + 1 + 1 > 3".
    Ti Outer Layer — Titanium (Ti)
    Function

    Provides excellent corrosion resistance and biocompatibility.

    • Resists seawater, acidic environments, and chloride ion corrosion
    • Low density reduces overall weight
    • Aesthetically pleasing surface finish
    Cu Middle Layer — Copper (Cu)
    Function

    Offers superior electrical and thermal conductivity; serves as a functional transition and buffer layer.

    • Electrical/thermal bridge: Acts as the primary channel for current or heat in high-conductivity scenarios
    • Buffer and bonding layer: Copper has better compatibility with both titanium and steel, effectively alleviating thermal stress, enhancing bonding strength, and improving production feasibility
    Fe Inner / Base Layer — Steel (Stainless Steel or Carbon Steel)
    Function

    Provides main structural strength, rigidity, and toughness; significantly reduces costs.

    • High mechanical strength and good processability (welding, machining)
    • Cost-effective base material

    Summary of Comprehensive Performance

    • "External corrosion resistance + medium-high conductivity + internal high strength": The surface is corrosion-resistant, the middle layer is highly efficient for electrical conduction and heat transfer, and the inner layer is strong and capable of bearing loads.
    • Excellent electrochemical compatibility: In certain applications (such as cathodic protection), the potential sequence positions of titanium and copper can be carefully designed to achieve specific functions.
    • Good thermal expansion matching: Through the transition of the copper layer, the stress caused by the difference in thermal expansion and contraction between the titanium layer and the steel layer is reduced.
    • High cost performance: While ensuring high performance on the surface, using inexpensive steel as the base material is much less costly than using all-titanium or thick copper materials.

    Main Purposes and Application Fields

    Ti/Cu/Steel clad material is always aimed at meeting extreme or special multi-functional requirements, mainly applied in:

    1 High-End Chemical & Electrochemical Industries

    Special electrolytic electrodes and anode baskets used in the electrolysis of corrosive media (such as chlorine-containing environments). The titanium layer resists corrosion, the copper layer ensures uniform current distribution, and the steel layer serves as a framework. Also used as conductive structural components in highly corrosive environments.

    2 Marine Engineering & Shipbuilding

    Hybrid grounding and lightning protection systems for ships — the titanium layer resists seawater corrosion, the copper layer provides a low-resistance grounding path, and the steel layer offers structural support. Also used in cathodic protection systems as auxiliary anodes or special connectors requiring both conductivity and corrosion resistance.

    3 Power & Energy Sector (Especially Nuclear Power)

    Integrated conductive/structural components for key parts of nuclear power plants, including control rod drive mechanisms and measurement instrument penetration assemblies. Titanium resists high-temperature and high-pressure water in the primary circuit; copper ensures precise, low-loss signal or current transmission; steel withstands mechanical loads and is welded to the main structure.

    4 Aerospace & Defense (Special Purposes)

    Special parts requiring lightweight, high strength, high conductivity, and resistance to environmental corrosion — including special grounding, electromagnetic shielding, or conductive structural units in spacecraft or high-performance aircraft. The copper layer provides electromagnetic pulse protection capability.

    5 Scientific Research Equipment

    Vacuum chambers or beam components in particle accelerators and synchrotron radiation sources. The titanium layer facilitates achieving ultra-high vacuum (low outgassing rate), the copper layer is used for cooling or transmitting high-frequency currents, and the steel layer provides the main structure. The copper layer also effectively dissipates internal heat.

    Frequently Asked Questions (FAQ)

    Q What is a multilayer metal composite bar material, and what layers does it consist of?
    A multilayer metal composite bar material is a structural product formed by metallurgically bonding multiple metal layers — typically an outer titanium (Ti) layer, a middle copper (Cu) layer, and an inner steel (stainless steel or carbon steel) layer. Each layer contributes distinct functional properties: corrosion resistance, electrical/thermal conductivity, and mechanical strength respectively.
    Q What manufacturing methods are used to bond the layers together?
    The layers are firmly bonded through metallurgical methods such as explosive cladding and rolling cladding. These techniques ensure a high-integrity, permanent bond between the titanium, copper, and steel layers, achieving composite performance that exceeds the sum of individual material properties.
    Q What specification sizes and shapes are available for the composite bar material?
    The product is available in three main cross-section shapes: Rectangular (width 20–150 mm × thickness 6–30 mm), Circular (Φ 8–50 mm), and Square (10–30 mm). Custom specifications can also be manufactured according to customer requirements. The reference standard is GB/T 12769-2015.
    Q Why is copper used as the intermediate layer between titanium and steel?
    Copper serves as an ideal intermediate layer because it has better metallurgical compatibility with both titanium and steel. Since the crystal structures and thermal expansion coefficients of titanium and steel differ significantly, direct bonding is difficult and prone to brittle intermetallic compounds. Copper effectively alleviates thermal stress, enhances bonding strength, and also provides superior electrical and thermal conductivity as a functional bridge layer.
    Q In which industries is Ti/Cu/Steel clad bar material most commonly used?
    Ti/Cu/Steel composite bar material is most commonly used in high-end chemical and electrochemical industries (electrolytic electrodes), marine engineering and shipbuilding (grounding and cathodic protection systems), nuclear power and energy sectors (conductive structural components), aerospace and defense (electromagnetic shielding and grounding), and scientific research equipment (vacuum chambers in particle accelerators).
    Q Can the composite bar material be customized, and what is the minimum order requirement?
    Yes, products can be fully customized according to the customer's specific requirements, including material grade selection (e.g., GR1, GR2, TA1, TA2 for titanium; 304, 316L for stainless steel; T1, T2, TU1, TU2 for copper), cross-section shape, and dimensional specifications. Please contact Baoji Special Steel Titanium Industry Co., Ltd. directly for custom order details and minimum quantity requirements.