Double-Layer Metal Composite Bar Materials from China Suppliers | Factory for Titanium, Zirconium, and Stainless Steel Clad Products
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
Substrate Materials
Copper T1, T2, Anaerobic Copper TU1, TU2, Aluminum, etc.
Clad Materials
Titanium (Ti), Zirconium (Zr), Nickel (Ni), Tantalum (Ta), Stainless Steel (304, 316L), etc.
Clad Layer Thickness
Conventional: 1.0 ~ 2.5 mm
Cross-Section Shapes & Sizes (mm)
Rectangular: Width (20~150) × Thickness (6~30)Circle: Φ (8~50)
Square: (10~30)
Wire: Φ (2.0~8.0)
Products can be customized according to the customer's requirements.
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. 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 ElectrodeElectrolytic 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, while the copper layer provides high conductivity and thermal conductivity — one of the most significant applications of titanium-coated copper.
· 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 for corrosion prevention of offshore platforms and pipelines — the titanium layer resists seawater corrosion, and the copper layer enhances current distribution efficiency. -
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, and the 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 solutions.
· 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 resists the corrosive environment inside the fuel cell, and the copper layer ensures high conductivity.
· Nuclear industry: Some nuclear reactors require materials that are radiation-resistant, corrosion-resistant, and have good thermal conductivity. -
Other Special Applications· Decoration and Architecture: The surface is titanium for color and durability; the interior is copper for strength and weight reduction — suitable for high-end decoration or architectural components.
· Medical Equipment: Combines the biocompatibility of titanium and the antibacterial property of copper, suitable for special medical devices or implantable equipment (requiring strict biocompatibility verification).
Double-Layer Metal Clad Bar Material — Conclusion
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
-
Q What is double-layer metal clad bar material and how is it made?Double-layer metal clad bar material is a composite product consisting of two different metals — typically titanium bonded over a copper core — manufactured through advanced metallurgical composite processes such as explosive bonding, rolling bonding, or co-extrusion. This creates a metallurgical bond between the two layers, ensuring stable performance under demanding industrial conditions.
-
Q What are the main advantages of titanium-clad copper bar over pure titanium or pure copper?Titanium-clad copper combines the best properties of both metals: the outer titanium layer provides excellent corrosion resistance in harsh chemical or marine environments, while the copper core delivers superior electrical and thermal conductivity. This combination significantly reduces material costs compared to using solid titanium, while maintaining performance levels that pure copper cannot achieve in corrosive environments.
-
Q What substrate and clad material combinations are available?The substrate materials include Copper (T1, T2), Oxygen-free Copper (TU1, TU2), Aluminum, and others. The clad materials available include Titanium (Ti), Zirconium (Zr), Nickel (Ni), Tantalum (Ta), and Stainless Steel (304, 316L). Custom combinations can be arranged based on specific application requirements.
-
Q What specification sizes and shapes are available for the clad bar material?The product is available in rectangular (width 20–150 mm × thickness 6–30 mm), circular (Φ 8–50 mm), square (10–30 mm), and wire form (Φ 2.0–8.0 mm). The clad layer thickness is conventionally 1.0–2.5 mm. Custom dimensions outside these ranges can be produced upon request.
-
Q Which industries most commonly use double-layer metal clad bar materials?The most common applications are in electrochemical processing, electroplating, electrolysis, hydrometallurgy, PCB manufacturing, water treatment, ocean engineering, hydrogen fuel cells, and chemical plant equipment. The material is especially valued in environments that require simultaneous high conductivity and strong corrosion resistance.
-
Q Can the products be customized, and what quality standards do they follow?Yes, all products can be customized according to the customer's specific dimensional, material, and performance requirements. The products are manufactured in accordance with the Chinese national standard GB/T 12769-2015 for metal composite materials. Baoji Special Steel Titanium Industry Co., Ltd. has over 25 years of experience in this field since 2001.