Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd. is one of the leading manufacturers and suppliers of titanium clad aluminum round bar in China. If you're going to buy customized titanium clad aluminum round bar made in China, welcome to get more information from our factory. For price consultation, contact us.
Product Introduction
Titanium clad aluminum round bars are high-performance bimetallic composite bars with a circular cross-section. The outer layer is a TA1/TA2 industrial pure titanium cladding layer, and the core is a 1060 pure aluminum/6061 aluminum alloy substrate. They are manufactured through explosive welding or hot extrusion diffusion metallurgical composite processes, achieving an atomically strong bond at the interface, eliminating the risk of incomplete connections or delamination. Unlike single pure titanium or pure aluminum materials, this composite structure perfectly combines the excellent corrosion resistance of titanium with the lightweight, high electrical and thermal conductivity of aluminum. It solves the problems of high cost and poor electrical and thermal conductivity of pure titanium, while also compensating for the insufficient corrosion resistance of pure aluminum in highly corrosive media. The circular cross-section is suitable for shaft, rod, and pin assembly scenarios, and is widely used in electrolytic conductive shafts, electroplating fixtures, marine equipment, heat exchange equipment, lightweight structural components, and other fields. It is an ideal upgrade material for cost reduction and weight reduction, replacing pure titanium bars and pure aluminum components.
Product Parameter
Implement International Standards System
● Composite product standards: ASTM B898 "Standard Specification for Active Metal Composite Panels", GB/T 12769-2015 "Titanium Steel Composite Panels" - Titanium-Aluminum Composite Derivative Specification.
● Substrate material standards: ASTM B265 (titanium and titanium alloy bars), ASTM B211 (aluminum and aluminum alloy bars), GB/T 2965 standard for titanium and titanium alloy bars, GB/T 3190 standard for chemical composition of wrought aluminum and aluminum alloys.
● Inspection and acceptance standards: Ultrasonic testing GB/T 7734, interfacial shear strength GB/T 6396, material certificates can be issued according to EN 10204 3.1.
● Environmental compliance standards: Complies with EU RoHS 2.0 directive, free of lead, cadmium, and harmful heavy metal leaching.
● Applicable working conditions: Suitable for corrosive conditions such as seawater, oxidizing acids and alkalis, and salt spray atmosphere; long-term working temperature ≤250℃; not suitable for high-concentration hydrofluoric acid or high-temperature concentrated alkali conditions.
Standard Materials And Structural Parameters
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Parameter Categories |
Optional Specifications |
Illustrate |
|
Coating material |
TA1 / TA2 Industrial Pure Titanium |
TA2 has higher strength and is suitable for heavy-duty and wear-prone conditions; TA1 has better plasticity and is suitable for deep-forming applications. |
|
base material |
1060 pure aluminum / 6061 aluminum alloy |
1060 offers superior electrical and thermal conductivity, making it suitable for conductive heat exchange applications; 6061 boasts higher strength, making it suitable for structural load-bearing applications. |
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Product Form |
Round bars, stepped bars, irregularly shaped bars, and custom composite components |
It can be further processed into finished products such as conductive shafts, lifting rods, and pins. |
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bar dimensions |
Diameter 20–200mm / Length 1000–6000mm |
For large-scale applications, explosive lamination is recommended; for standard-scale applications, hot extrusion lamination is recommended. |
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Coating thickness |
Single-sided: 0.5–5.0 mm; Standard: 1.0–3.0 mm |
Thickness ratios can be customized to balance corrosion resistance lifespan and overall cost. |
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Composite process |
Explosive composite/thermal extrusion diffusion composite |
For large sizes, small batches, and irregular shapes, choose explosive extrusion; for standard sizes and large batches, choose hot extrusion. |
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Supply status |
Annealed state, pickled and passivated state, machined state, polished state |
Surface finish can be customized according to subsequent processing requirements. |
Product Features and Applications
Product Advantages
Metallurgical composite interface with long-term stable performance: Utilizing explosive bonding or hot extrusion diffusion bonding processes, the titanium-aluminum interface achieves atomic-level metallurgical bonding with a bonding strength ≥70MPa. This eliminates common problems associated with mechanical coatings and spray coatings, such as delamination, incomplete connections, and contact resistance drift. The interface remains stable under thermal cycling, machining, and long-term loads, with no long-term degradation in electrical conductivity, thermal conductivity, and structural properties.
Combining the advantages of two metals for lightweight and cost-effectiveness: TA1/TA2 pure titanium serves as the outer layer to ensure strong corrosion resistance and structural stability, while aluminum forms the core to ensure high electrical and thermal conductivity and lightweight properties. The two metals complement each other. Compared to pure titanium rods, material costs and weight are significantly reduced; compared to pure aluminum rods, corrosion resistance life and structural strength are significantly improved . This makes it the optimal solution for cost reduction and weight reduction in highly corrosive environments.
Flexible and customizable formulation to suit diverse scenarios: The thickness of the titanium coating, the material and proportion of the aluminum core can be customized as needed. The material ratio can be adjusted to meet different requirements such as conductivity priority, corrosion resistance priority, strength priority, and weight reduction priority. At the same time, it supports various forms such as smooth round bars, stepped bars, variable diameter bars, and irregular cross sections. It provides one-stop supply from raw materials to deep-processed finished products to meet the personalized needs of different industries and equipment.
Excellent processing performance and convenient subsequent molding: The composite material has good overall plasticity and machinability, and can be subjected to various deep processing such as cutting, turning, centerless grinding, welding, drilling, milling, and tapping. The interface will not delaminate or crack during the processing. It can directly replace pure titanium and pure aluminum raw materials in the existing processing flow without additional equipment and process modification.
Long lifespan, low maintenance, and better overall cost: Titanium coating effectively isolates corrosive media such as seawater and acids and alkalis. Under normal working conditions, its service life is more than 5 times that of pure aluminum components, which greatly reduces the frequency of spare parts replacement and downtime for maintenance. At the same time, the material is lightweight, which reduces transportation, installation and equipment load costs. The overall maintenance cost for long-term use is significantly lower than that of single metal materials.
Application Areas
Hydrometallurgy and electroplating: Cathode conductive shaft of electrolytic cell, permanent cathode hanging rod, main rod of electroplating fixture, anode conductive rail, conductive components for corrosive electrolyte environment.
Ocean and Seawater Desalination: Seawater desalination heat exchange support shaft, offshore platform anti-corrosion pin shaft, coastal equipment conductive rod, lightweight anti-corrosion structural components for ships.
Chemical Industry and Environmental Protection: Reactor stirring paddle main shaft, conductive components for corrosion-resistant equipment, electrode substrate for wastewater treatment, and conveying roller shaft for corrosive materials.
Heat exchange and refrigeration equipment: compact heat exchanger heat transfer shafts, condenser heat transfer supports, and corrosion-resistant heat transfer components for refrigeration equipment.
New energy and lightweight conductivity: lightweight conductive shafts for new energy equipment, corrosion-resistant conductive components for energy storage systems, and lightweight pin components for rail transit.
Production line upgrade: Upgrade and replacement solutions for shaft-type scenarios where the original pure aluminum components corrode quickly and suffer high wear, and pure titanium components are costly and heavy.
Product Details
Interface Standards
Composite interface bonding rate ≥95%, Grade I product ≥98%, no continuous unbonded areas, bonding strength ≥70MPa.
01
Dimensional Accuracy
Diameter tolerance of round bar ±0.2mm, length tolerance ±0.5mm; out-of-roundness ≤0.15mm, straightness ≤0.5mm/m.
02
Surface Quality
The titanium coating surface is free of scratches, cracks, and rust; the passivation film is uniform, complete, clean, and free of oil.
03
Detection standards
Ultrasonic testing shall be performed in accordance with GB/T 7734. The area of a single unbonded defect shall be ≤1 cm², and the total unbonded area shall be ≤5%.
04
Product Supporting Documents
Authoritative International Qualification Certificates
ASTM B898 composite product conformity test report, and EN 10204 3.1 original material certificate issued for each batch.
ISO 9001 Quality Management System Certification, ISO 14001 Environmental Management System Certification.
Third-party SGS test report on interface bonding strength, conductivity, ultrasonic flaw detection, and corrosion resistance.
The RoHS environmental compliance test report meets the environmental requirements of the electronics, metallurgy, and marine engineering industries.
thoughtful service
Packaging Standards (For Export By Sea)
The product is fully wrapped in pearl cotton and PE protective film, with protective covers added to the processed surfaces and corner protectors added to the edges and corners to prevent damage and deformation during transportation.
The entire batch is packed into fumigated solid wood export crates, with the interior filled with shock-absorbing foam for multiple fixation points to prevent movement and deformation during transportation.
The wooden crates are labeled with the product model, dimensions, quantity, gross weight, and moisture-proof/lifting markings, making them suitable for all scenarios including sea, land, and air transport.
Professional Consultation Q&A
Q1: What are the core advantages of titanium-clad aluminum round bars compared to pure titanium bars and pure aluminum bars?
A1: The core advantage lies in achieving an optimal balance between corrosion resistance, lightweight design, electrical and thermal conductivity, and cost. Pure titanium rods offer excellent corrosion resistance but are expensive, heavy, and have poor electrical and thermal conductivity, failing to meet the demands of efficient conductive heat exchange. Pure aluminum rods are low-cost, lightweight, and have good electrical and thermal conductivity, but they are highly susceptible to corrosion and loss in corrosive environments such as seawater and acid/alkali environments, resulting in a very short service life. Titanium-clad aluminum round rods use titanium as the outer layer to ensure strong corrosion resistance and aluminum as the core to ensure high electrical and thermal conductivity and lightweight design. Their corrosion resistance is close to that of pure titanium, while their weight is only 35%~45% of pure titanium. Their overall cost is far lower than pure titanium, and their service life is more than five times that of pure aluminum, making them the most cost-effective solution for highly corrosive, lightweight, and conductive applications.
Q2: How should one choose between explosive lamination and hot extrusion lamination processes, and what are the differences between them?
A2: Both processes involve metallurgical integration, and both offer stable and reliable performance. The selection primarily depends on the product diameter, structural shape, and purchase quantity.
● Explosive bonding: Suitable for large-diameter round bars (80mm and above), stepped/variable-diameter irregular bars, and small-batch custom orders. It offers higher bonding strength and a wider range of compatible material combinations; however, the production cycle is slightly longer, and the cost-effectiveness of small-sized products is relatively low.
● Hot extrusion composite: Suitable for standard round bars with diameters of 20~120mm, for medium to large volume orders. It produces high dimensional accuracy, a smooth surface, high production efficiency, and lower unit cost. However, due to extrusion pressure limitations, it cannot produce ultra-large diameter or extremely irregular cross-sections. We will recommend the optimal process solution based on your specific dimensions, structural requirements, and purchase volume to ensure performance while controlling overall costs.
Q3: Can titanium-clad aluminum round bars be machined, welded, or otherwise processed? Will delamination occur?
A3: Titanium-clad aluminum round bars produced using standard metallurgical composite processes will not experience delamination issues during routine deep processing. The material interface exhibits an atomic-level metallurgical bond with a bonding strength ≥70MPa, far exceeding that of mechanically clad or spray-coated structures. They can be normally cut, turned, ground, welded, drilled, milled, and tapped without delamination or cracking after processing. It is important to note that when welding, it is recommended to use matching dissimilar metal welding materials and control the welding heat input to avoid excessive diffusion at the interface due to prolonged high temperatures. We can provide corresponding welding process parameter guidance to ensure the performance of the finished product.
Latest company news
The titanium-aluminum composite bar production line has been fully upgraded, with an annual production capacity of 320 tons of square and round bars in all specifications.
Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd., located in Baoji, Shaanxi, known as China's Titanium Valley, recently completed process optimization and capacity expansion of its titanium-aluminum bimetallic composite bar production line, further enhancing its full-series supply capabilities for titanium-clad aluminum profiles. The upgraded production line comprehensively covers titanium-clad aluminum square bars, round bars, flat bars, and customized profiles. Square bar cross-sectional lengths range from 15×15mm to 80×80mm, and round bar diameters range from 20mm to 200mm, with a maximum customized length of 6000mm. The company is equipped with two mature metallurgical composite processes: explosive welding and hot extrusion diffusion composite. For large-size, small-batch, and irregularly shaped parts, explosive welding is used, resulting in higher interface bonding strength; for standard specifications and large-volume orders, hot extrusion is used, offering superior dimensional accuracy and production efficiency. All product lines achieve atomic-level metallurgical bonding at the interface, with an interface bonding strength ≥70MPa and a composite bonding rate ≥95%. There is no risk of delamination or peeling during hot and cold cycles or machining. All products are manufactured using high-quality TA1/TA2 industrial pure titanium cladding and 1060 pure aluminum/6061 aluminum alloy core materials, strictly adhering to international composite material standards such as ASTM B898 and GB/T 12769. Each batch undergoes full-length ultrasonic testing, composition verification, dimensional accuracy inspection, and full visual inspection before leaving the factory, and can be issued with an original material certificate of EN 10204 3.1. With its excellent corrosion resistance, lightweight advantages, and reliable electrical and thermal conductivity, it is widely applicable to electroplating equipment, hydrometallurgical electrolysis, marine engineering, heat exchange equipment, and lightweight conductive materials in new energy fields, making it a cost-effective upgrade solution to replace pure titanium and pure aluminum rods.
With well-developed deep processing capabilities for titanium-clad aluminum rods, we achieve one-stop supply from base material to finished product.
Focusing on end-use applications in industries such as electrochemistry, marine engineering, and heat exchange and refrigeration, the company is further expanding its deep processing capabilities for titanium-clad aluminum rods, achieving integrated production and delivery from composite substrates to finished products. Leveraging its precision CNC machining center, the company can process titanium-clad aluminum square and round rods into various finished components as needed, including electroplated conductive beams, electrolytic cathode hangers, electroplated fixture main rods, heat exchange support components, anti-corrosion guide rail liners, and lightweight pins. Customization based on drawings and sample replication is supported, and the thickness ratio of the titanium cladding to the aluminum core, cross-sectional dimensions, and irregular structures can be flexibly adjusted. Customized material solutions are provided for different operating conditions, prioritizing conductivity, corrosion resistance, and weight reduction. This one-stop supply model reduces communication costs and time losses associated with multiple procurement and outsourcing for customers, helping them shorten project cycles and optimize overall costs.
Global supply service system upgrade: Titanium-aluminum composite rod exports cover multiple regions worldwide.
The company possesses independent import and export rights and has established a comprehensive global supply and service system for titanium-aluminum composite bars, covering multiple overseas markets including Europe, Southeast Asia, North America, and the Middle East. The company collaborates extensively with internationally renowned logistics carriers, offering diversified delivery solutions such as sea freight, air freight, and China-Europe freight trains, along with export-grade fumigated solid wood crates to ensure safe transportation throughout the entire process. Adhering to the quality philosophy of "Quality First, Customer Supreme," all batches of products support testing by third-party institutions such as SGS and BV. We offer a 7-day free return and exchange policy for quality issues and a long-term product quality warranty. Our professional engineering team provides 24-hour online technical support, covering the entire process from selection consultation and processing technology guidance to on-site repair, striving to become a trusted long-term supplier of bimetallic composite materials for global customers.
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