China Suppliers - Multilayer Metal Composite Bar Materials from Leading Factory: Titanium, Copper, Stainless Steel, and More
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
The 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 material: stainless steel (304, 316L), steel (Q235) etc.
Rectangular: width (20 ~ 150) x thickness (6 ~ 30)
Circle: Φ (8 ~ 50)
Square model: (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 of Materials and the Comprehensive Performance after Composite
The essence of this structure lies in the firm combination of the three 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.
Performance contribution: Resists seawater, acidic environments, and chloride ion corrosion; low density reduces weight; aesthetically pleasing surface.
Function: Offers superior electrical and thermal conductivity, and serves as a functional transition layer and buffer layer.
Performance contribution: Electrical/thermal bridge in high electrical conductivity scenarios. Alleviates thermal stress, enhances bonding strength, and improves production feasibility between titanium and steel.
Function: Provides the main structural strength, rigidity, and toughness, and significantly reduces costs.
Performance contribution: High mechanical strength, good processability (such as welding and machining), and acts as a 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:
Specific Application: 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. They can also be used as conductive structural components in highly corrosive environments.
Specific Application: 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. This is its most classic and important application.
Cathodic Protection System: As auxiliary anodes or special connectors, they must be both conductive and corrosion-resistant.
Specific Application: Integrated conductive/structural components for key parts of nuclear power plants. For instance, certain control rod drive mechanisms or measurement instrument penetration assemblies require:
• (Titanium) Resistance to high-temperature and high-pressure water in the primary circuit.
• (Copper) Precise and low-loss transmission of signals or currents.
• (Steel) Ability to withstand mechanical loads and be welded to the main structure.
Specific Application: For special parts that require lightweight, high strength, high conductivity, and resistance to environmental corrosion. For example, special grounding, electromagnetic shielding, or conductive structural units in spacecraft or high-performance aircraft. The copper layer provides electromagnetic pulse protection capability.
Specific Application: 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 effectively dissipates internal heat.
Frequently Asked Questions (FAQ)
Our metal composite materials are manufactured in reference to the GB/T 12769-2015 standard, ensuring consistent quality and performance across all specifications.
We offer Titanium (GR1, Gr2, TA1, TA2) and stainless steel (304, 316L) for the clad layer; Copper (T1, T2) and anaerobic Copper (TU1, TU2) for the intermediate layer; and stainless steel (304, 316L) or carbon steel (Q235) for the inner base layer.
Yes, products can be fully customized according to the customer's specific requirements. Our standard shapes include rectangular, circular, and square cross-sections in various dimension ranges.
Copper provides superior electrical and thermal conductivity. Additionally, it acts as a buffer and bonding layer that alleviates thermal stress and prevents brittle intermetallic compounds from forming between the incompatible titanium and steel layers.
By using inexpensive steel as the inner base material for structural strength, we minimize the use of more expensive materials like titanium and thick copper, providing a highly cost-effective solution without compromising surface performance.