Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd. is one of the leading manufacturers and suppliers of copper steel explosion composite plate in China. If you're going to buy customized copper steel explosion composite plate made in China, welcome to get more information from our factory. For price consultation, contact us.
Product Introduction
Copper steel explosion composite plates are bimetallic metallurgical composite plates manufactured using a high-energy explosion cold welding process. The entire production process adheres to the ASTM B432 international standard for copper and copper alloy composite steel plates . The copper cladding and steel base achieve a complete metallurgical bond without brittle intermetallic compounds, with interface bonding strength far exceeding the mandatory requirements of international standards. The product combines the extremely high electrical and thermal conductivity of copper with the high strength, ease of welding, and cost-effectiveness of the carbon steel/stainless steel base. Excellent performance can be achieved with only a thin copper layer on the conductive and heat-exchange contact surface, reducing material costs by 40%-60% compared to pure copper plates. It solves the industry problem of easy cracking and poor bonding when directly welding dissimilar metals like copper and steel. It is widely used in power busbars, heat exchange equipment, electrolytic metallurgy, rail transit grounding, and new energy conductive components, making it a core functional structural material for cost reduction and efficiency improvement in the power, chemical, and new energy fields.
Products Description
Implement International Standards System
● General standard for composite sheet materials: ASTM B432-25 (Standard specification for copper and copper alloy composite steel sheets).
● Copper cladding material standard: ASTM B152 (copper and copper alloy sheet, medium and heavy plate).
● Carbon steel base standards: ASTM A36 (carbon steel for structural purposes), ASTM A516 (carbon steel for pressure vessels), ASTM A283 Gr.C.
● Stainless steel base standard: ASTM A240 (austenitic stainless steel plate).
● Inspection and acceptance standards: EN 10204 3.1 Material Certificate, ASTM A578 Ultrasonic Testing Standard, ASTM E8 Interfacial Shear Strength Test.
Standard Material Grade
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Layered Structure |
Optional International Brands |
Operating Condition Adaptation Instructions |
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Copper Cladding |
C11000 ETP Copper, C10200 OFHC Oxygen-Free Copper, C12200 Phosphorus Deoxidized Copper. |
C11000: General purpose for conventional conductive heat exchange; C10200: High purity, low impedance, dedicated to precision conductive/vacuum equipment; C12200: High temperature heat exchange, welding applications. |
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Steel Base |
Carbon steel: A36, SA-516 Gr.70, A283 Gr.C; Stainless steel: 304/304L, 316/316L. |
A36: Standard conductive components; SA-516 Gr.70: Pressure vessels/heat exchange equipment; 316L: Slightly corrosive + Sanitary heat exchange conditions. |
Product Features and Applications
Product Advantages
Explosion-driven high-speed collision achieves atomic-level metallurgical bonding, with a uniform wave-shaped interface. The shear strength far exceeds that of rolled composite plates. It does not delaminate after bending, stamping, and welding, meeting the requirements of high-current conductivity and pressure-bearing heat exchange conditions.
The copper layer provides low electrical resistance and high thermal conductivity, while the steel layer provides structural strength and weldability, balancing electrical conductivity/heat transfer performance with structural mechanical properties.
Only the functional contact surfaces use precious metal copper, while the main body is made of low-cost steel. Compared with pure copper plates, it saves 40%–60% of material costs for the same conductivity/heat exchange effect, significantly reducing the overall cost of the equipment.
It can perform deep processing such as bending, stamping, CNC machining, welding, and rolling, and supports the production of various components such as conductive busbars, heat exchange plates, grounding electrodes, and flanges.
The copper layer has excellent resistance to oxidation and electric arc, while the steel layer ensures structural strength. There is no risk of delamination or peeling during long-term operation, the maintenance cost is extremely low, and the service life is 2-3 times that of a single copper component.
Application Areas
Power industry: high and low voltage conductive busbars, switchgear conductive bars, transformer conductive components, grounding electrodes.
Heat exchange equipment: plate heat exchangers, tube sheets, coolers, radiators, chemical heat exchange linings.
Electrolytic metallurgy: conductive beams for electrolytic cells, conductive bases for cathodes, and conductive components for electroplating equipment.
Rail transit: high-speed rail/subway grounding guide plate, track grounding terminal, traction power supply conductive structural components.
New energy industry: conductive busbars for energy storage batteries, conductive components for photovoltaic inverter equipment, and conductive structures for hydrogen electrolyzers.
Military and shipbuilding: conductive grounding components for ships, and anti-corrosion conductive composite structural components for marine applications.
Product Details
Copper-clad surface
Bright brushed/polished finish, low electrical resistance; can be tin-plated or silver-plated upon request.
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Steel base surface
Rust removal and rust prevention primer treatment, or black rolled surface can be provided.
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Edge treatment
Milling removes unbonded areas at the edges, ensuring 100% bonding on all sides, and can be used to process welding bevels.
03
Optional deep processing services
We support customized bending, drilling, and tin plating of conductive busbars according to drawings; heat exchange plate forming; and cutting of irregular parts. We can also provide technical guidance on copper-steel composite welding.
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Product Supporting Documents
Authoritative International Qualification Certificates
AASTM B432 material testing report, and an original manufacturer's material certificate in EN 10204 3.1 is issued for each batch.
ISO 9001 Quality Management System Certification, ISO 14001 Environmental Management System Certification.
The third-party SGS interface combines strength, conductivity, and UT flaw detection reports.
EU PED (Pressure Equipment Material Certification) and Power Industry Conductive Material Testing and Certification.
thoughtful service
Packaging Standards (For Export By Sea)
Each sheet of board is covered with a PE protective film, and solid wood corner protectors are added to the four corners to prevent damage to the copper surface during transportation.
The entire batch is packaged in fumigated solid wood export crates, with desiccant placed inside.
The wooden crates are labeled with material grade, dimensions, gross weight, and moisture-proof/lifting markings, suitable for all scenarios including sea, land, and air transport.
Professional Consultation Q&A
Q1: What international standards does your company's copper-steel composite explosion-proof plate meet?
A1: Our products strictly adhere to ASTM B432 (Copper and Copper Alloy Composite Steel Sheet Standard), with the copper layer conforming to ASTM B152 and the steel substrate conforming to ASTM A36/ASTM A516/ASTM A240. Each batch of products comes with an EN 10204 3.1 factory inspection certificate.
Q2: What are the differences between explosive welding and rolling welding of copper steel plates?
A2: Explosive welding forms a complete metallurgical bond with a shear strength ≥180MPa. There is no delamination after bending, stamping, and welding. It is suitable for high-current conductive and pressure-bearing heat exchange conditions. Rolled welding only achieves a mechanical bond with lower strength. It is easy to peel off during deep processing and is only suitable for simple planar lining applications.
Q3: Which copper grade should be selected for high-precision conductive equipment?
A3: C10200 OFHC oxygen-free copper is the best choice for high-precision, low-resistance conductive applications, featuring ultra-high purity and a conductivity of ≥100% IACS. For general power busbars, C11000 ETP copper offers the best cost-performance ratio.
Q4: What is the recommended thickness ratio for conductive busbar applications?
A4: For standard low-voltage busbars, we recommend using a 2-3mm copper cladding layer + 8-15mm steel substrate. This satisfies current-carrying requirements, ensures structural strength, and minimizes costs. Our engineers can customize the thickness ratio based on your specific current parameters.
Latest company news
The full series of composite metal production lines has completed upgrades, reaching an annual production capacity of 1,350 tons.
Based in Baoji known as "China's Titanium Valley" Baoji Ruihenghuatai Titanium Metal Composite New Materials Co., Ltd. underwent an asset restructuring in 2024 and subsequently comprehensively upgraded its production lines for explosive welding, vacuum heat treatment, and precision machining. With 20 years of experience in non-ferrous metal processing, the company now possesses a complete industrial chain spanning ingot melting, forging, and rolling to vacuum heat treatment, supported by core equipment such as a 350kW electron beam melting furnace, a 2,000-ton hydraulic press, and a 1,500mm vacuum annealing furnace. Its product portfolio encompasses composite plates, rods, and finished components based on titanium, copper, aluminum, nickel, and zirconium, as well as multi-layer transition composites, with an annual output of 1,350 tons. All products are manufactured in strict accordance with international standards such as ASTM and ASME, backed by a comprehensive quality traceability system. With a 30% increase in production efficiency and delivery times for standard batch orders kept within 15 days, the company ensures a stable supply for global clients across the chemical, energy, new energy, and metallurgical sectors.
Enhanced R&D capabilities; titanium-based cathode plate project officially put into production.
To meet market demand in the fields of electrochemical metallurgy and new energy materials, our independently developed titanium-based cathode plate production project officially cleared government filing and environmental protection inspections in October 2025 and has now entered full-scale production.
Building upon our existing composite plate substrate capabilities, we have expanded our deep-processing operations to include finished components such as cathode plates, conductive busbars, and pressure vessel parts, thereby achieving integrated production that spans from raw composite plate materials to finished end products. We continue to increase R&D investment in dissimilar metal composite technology, enabling us to provide customized material solutions tailored to demanding operating conditions-including exposure to strong acids, strong alkalis, high temperatures, and high pressures-thereby helping customers optimize project costs and extend equipment service life.
Upgraded global service system; possessing independent import and export qualifications, enabling global distribution.
The company holds independent import and export rights and has established a comprehensive global supply and service network, with operations spanning Europe, Southeast Asia, North America, the Middle East, and other regions. We partner with renowned international logistics carriers to provide diverse transportation solutions, including sea freight, air freight, and China-Europe rail services.
Adhering to a "Quality First, Customer Foremost" philosophy, we issue EN 10204 3.1 material inspection certificates for every batch of products and support third-party inspections by authoritative bodies such as SGS and BV for all volume orders. We offer a 7-day free replacement service and long-term quality guarantees to address any quality issues, backed by 24/7 online technical support from professional engineers. We are committed to becoming a trusted, long-term supplier of clad metals to customers worldwide.
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