Double-Layer Metal Composite Bars - China Suppliers & Factory for Titanium, Zirconium, and Stainless Steel Clad Materials
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 hard work and development, we have established a complete and 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
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Clad Materials
Titanium (Ti) · Zirconium (Zr) · Nickel (Ni) · Tantalum (Ta) · Stainless Steel (304, 316L)
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Clad Layer Thickness
Conventional: 1.0 ~ 2.5 mm
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Cross-Section: Rectangular
Width (20~150) × Thickness (6~30) mm
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Cross-Section: Circle / Square / Wire
Circle Φ 8~50 mm · Square 10~30 mm · Wire Φ 2.0~8.0 mm
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Custom Orders
Products can be fully customized according to customer requirements
All specifications can be customized. Contact us with your project requirements for a tailored solution.
Product Display
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, including:
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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 contacts the corrosive electrolyte; the copper layer provides high conductivity and thermal conductivity — one of the most significant current applications.
· Other Electrolytic Electrodes: Used in chlor-alkali industry and hydrometallurgy as insoluble anodes or special cathodes, balancing conductivity and corrosion resistance.
· Cathodic Protection Systems: As anode bed material for corrosion prevention of offshore platforms and pipelines. The titanium layer resists seawater corrosion; the copper layer enhances current distribution efficiency.
· Cathode Roll: Used for producing electrolytic copper foil (a key raw material for lithium batteries and printed circuit boards). The titanium layer contacts the corrosive electrolyte; the copper layer provides high conductivity and thermal conductivity — one of the most significant current applications.
· Other Electrolytic Electrodes: Used in chlor-alkali industry and hydrometallurgy as insoluble anodes or special cathodes, balancing conductivity and corrosion resistance.
· Cathodic Protection Systems: As anode bed material for corrosion prevention of offshore platforms and pipelines. The titanium layer resists seawater corrosion; the copper layer enhances current distribution efficiency.
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Special Conductive / Thermal Components
· High-Performance Electronic Devices: Contacts, connectors, or heat dissipation substrates (e.g., power semiconductor modules) requiring high conductivity and local corrosion resistance. 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; the titanium layer prevents high-temperature oxidation or adhesion.
· Welding and High-Temperature Tools: Resistance welding electrodes, electrical discharge machining electrodes, etc. Copper provides excellent conductivity; the titanium layer prevents high-temperature oxidation or adhesion.
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Marine and Chemical Equipment
· Ship and Seawater Systems: Seawater coolers, heat exchanger tubesheets, etc. The titanium layer resists seawater corrosion; the copper layer enhances heat conductivity and reduces costs compared to all-titanium solutions.
· Chemical Equipment: Reactor linings, agitators, etc., for situations requiring both corrosion resistance and rapid heat conduction.
· Chemical Equipment: Reactor linings, agitators, etc., for situations requiring both corrosion resistance and rapid heat conduction.
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New Energy and High Technology Fields
· Hydrogen Fuel Cell: Bipolar plates or related components. The titanium layer resists the corrosive internal environment; the copper layer ensures high conductivity.
· Nuclear Industry: Some nuclear reactors require materials that are radiation-resistant, corrosion-resistant, and thermally conductive.
· Nuclear Industry: Some nuclear reactors require materials that are radiation-resistant, corrosion-resistant, and thermally conductive.
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Other Special Applications
· Decoration and Architecture: Titanium surface offers color and durability; copper interior provides strength and weight reduction — suitable for high-end decoration or architectural components.
· Medical Equipment: Combines the biocompatibility of titanium and the antibacterial properties of copper, suitable for special medical devices or implantable equipment (requiring strict biocompatibility verification).
· Medical Equipment: Combines the biocompatibility of titanium and the antibacterial properties of copper, suitable for special medical devices or implantable equipment (requiring strict biocompatibility verification).
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)
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What is a double-layer metal clad bar material?
A double-layer metal clad bar material is a composite product consisting of two different metals — typically a corrosion-resistant outer layer (such as titanium) metallurgically bonded to a highly conductive inner core (such as copper). This structure combines the best properties of both metals into a single, high-performance material.
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What substrate and clad material combinations are available?
The substrate materials include Copper (T1, T2), Anaerobic Copper (TU1, TU2), and Aluminum. The clad materials available include Titanium (Ti), Zirconium (Zr), Nickel (Ni), Tantalum (Ta), and Stainless Steel (304, 316L). Custom combinations can also be arranged based on specific project requirements.
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What sizes and cross-section shapes are available for the clad bar?
The products are available in multiple cross-section shapes: Rectangular (width 20–150 mm × thickness 6–30 mm), Circular (Φ 8–50 mm), Square (10–30 mm), and Wire (Φ 2.0–8.0 mm). The standard clad layer thickness ranges from 1.0 to 2.5 mm. Custom dimensions are also accepted.
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Why is titanium-clad copper preferred for electrochemical applications?
Titanium-clad copper is ideal for electrochemical applications because the titanium outer layer provides excellent resistance to corrosive electrolytes, while the copper core ensures high electrical and thermal conductivity. This combination delivers both long service life and efficient energy transfer, making it cost-effective compared to pure titanium alternatives.
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Can the products be customized for special industrial requirements?
Yes. Baoji Special Steel Titanium Industry Co., Ltd. offers fully customized solutions. Customers can specify the substrate material, clad material, layer thickness, cross-section shape, and dimensions. Products are manufactured in accordance with GB/T 12769-2015 and can meet specific industry standards upon request.
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How long has Baoji Special Steel Titanium Industry been producing metal composite materials?
Baoji Special Steel Titanium Industry Co., Ltd. has been manufacturing metal composite material products since 2001 — over 25 years of experience. During this time, the company has built a complete, specialized production line dedicated to delivering high-quality double-layer metal composite bar materials for global industrial clients.