Multilayer Metal Composite Bar Material - Titanium, Zirconium, Stainless Steel, and More from China Suppliers and Factory
Reference Standard: GB/T 12769-2015
Titanium GR1, GR2, TA1, TA2
Stainless Steel (304, 316L), etc.
Copper T1, T2
Anaerobic Copper TU1, TU2, etc.
Stainless Steel (304, 316L)
Steel (Q235), etc.
Rectangular: Width (20–150) × Thickness (6–30)
Circle: Φ (8–50)
Square: (10–30)
The essence of this structure lies in the firm combination of three layers through metallurgical methods (such as explosive cladding and rolling cladding), achieving a performance of "1 + 1 + 1 > 3".
Function: Provides excellent corrosion resistance and biocompatibility.
- Resists seawater, acidic environments, and chloride ion corrosion
- Low density reduces overall weight
- Aesthetically pleasing surface finish
Function: Offers superior electrical and thermal conductivity; serves as a functional transition and buffer layer.
- Acts as the primary channel for current or heat in high-conductivity scenarios
- Effectively alleviates thermal stress between titanium and steel
- Enhances bonding strength and improves production feasibility
Function: Provides main structural strength, rigidity, and toughness; significantly reduces costs.
- High mechanical strength and good processability
- Supports welding and machining
- Cost-effective base material
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"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.
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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.
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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.
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High cost performance: While ensuring high surface performance, using inexpensive steel as the base material is much less costly than using all-titanium or thick copper materials.
Used in special electrolytic electrodes and anode baskets for corrosive media (e.g., chlorine-containing environments). The titanium layer resists corrosion, the copper layer ensures uniform current distribution, and the steel layer serves as a structural framework. Also applied as conductive structural components in highly corrosive environments.
Ideal for 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.
Applied in integrated conductive/structural components for key parts of nuclear power plants, such as control rod drive mechanisms or measurement instrument penetration assemblies. Titanium resists high-temperature and high-pressure water; copper enables precise, low-loss signal/current transmission; steel withstands mechanical loads and enables welding to main structures.
Used for special parts requiring lightweight, high strength, high conductivity, and environmental corrosion resistance — such as grounding, electromagnetic shielding, or conductive structural units in spacecraft or high-performance aircraft. The copper layer provides electromagnetic pulse protection capability.
Applied in vacuum chambers or beam components in particle accelerators and synchrotron radiation sources. The titanium layer facilitates ultra-high vacuum (low outgassing rate); the copper layer handles cooling or high-frequency current transmission; the steel layer provides the main structure. The copper layer also effectively dissipates internal heat.