Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd. is one of the leading manufacturers and suppliers of stainless steel copper clad hanger in China. If you're going to buy customized stainless steel copper clad hanger made in China, welcome to get more information from our factory. For price consultation, contact us.
Product Introduction
Stainless steel-clad copper suspension rods for electrolysis are the core conductive and load-bearing components of permanent cathode systems in electrolytic refining. They feature a T2 pure copper inner conductive core and a full-section outer surface clad in 316L/304 industrial stainless steel. A hot-rolled diffusion metallurgical composite process achieves a bimetallic integrated bond, simultaneously ensuring excellent conductivity, corrosion resistance, and mechanical rigidity. Unlike traditional pure copper suspension rods, the stainless steel cladding effectively prevents rapid corrosion of copper in sulfuric acid electrolytes and copper ion contamination of the electrolyte. Furthermore, its conductivity is far superior to that of pure stainless steel suspension rods. It is a standard conductive component in permanent cathode copper electrolysis production lines and is widely used in hydrometallurgical processes such as copper electrolytic refining, manganese electrolysis, and nickel electrolysis. Its service life and overall operating costs are superior to those of pure copper structures.
Product Parameter
Implement International Standards System
● Composite product standards: GB/T 12769 General Specification for Metal Composite Plates, YS/T 1090-2024 Specification for Conductive Components Matching Cathode Plates for Copper Electrowinning in Hydrometallurgy.
● Substrate material standards: ASTM A240 (stainless steel sheet), GB/T 5231 (chemical composition and product shape of processed copper and copper alloys).
● Welding process standard: GB/T 985.1 Gas shielded welding specification, using high-purity argon gas for shielded welding.
● Environmental compliance standards: Complies with EU RoHS 2.0 directive, with no leaching of harmful heavy metals.
● Acceptance and quality assurance standards: EN 10204 3.1 Original manufacturer's material certificate and interface bond strength test report.
● Applicable operating conditions: Suitable for copper electrolysis in sulfuric acid system and conventional hydrometallurgical electrolysis, with an operating temperature ≤80℃; not suitable for media containing fluoride ions or high-concentration hydrochloric acid.
Standard Materials And Structural Parameters
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Parameter Categories |
Optional Specifications |
Illustrate |
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Main material |
316L/304 stainless steel cladding + T2 copper inner core |
A universal design for copper electrolysis applications, balancing conductivity, corrosion resistance, and cost. |
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Cross-sectional shape |
Rectangular, flat, and irregular cross-sections |
It can fully match the dimensions of existing electrolytic cell cathode plates and conductive busbars. |
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External dimensions |
Length 800–4000mm / Cross-section width 30–150mm / Cross-section thickness 20–80mm |
Full-size customization available upon request, supporting 1:1 replicas of old suspension rods. |
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Stainless steel layer thickness |
Single-sided: 1.0–3.0 mm; Regular: 1.5–2.0 mm |
For highly corrosive applications, a thicker 316L stainless steel layer is recommended. |
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Strengthen the structure |
No reinforcing core / Built-in Q235 carbon steel reinforcing core |
Large-size heavy-duty cathode plates can be equipped with an internal steel core to improve bending strength. |
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End structure |
Conductive lap joint, cathode plate welding position, hoisting position |
End processing can be customized according to the installation and connection method. |
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Optional accessories |
Insulating sleeve, fastening block, conductive clamp accessories |
Optional configuration to suit different production line installation structures |
Product Features and Applications
Product Advantages
Metallurgical composite interface with stable conductivity and no attenuation: The stainless steel and copper interface are bonded at the atomic level using a high-temperature hot rolling diffusion composite process with a bonding strength of ≥80MPa. This eliminates the delamination, loose connection, and contact resistance drift problems common in mechanical coating structures. The conductivity is stable under long-term high-current service, and the current transmission efficiency is far superior to mechanical assembly and electroplating coating structures.
Stainless steel corrosion-resistant protection with strong adaptability to working conditions: The outer layer is made of 316L/304 industrial stainless steel, which has a stable passivation film in sulfuric acid electrolyte and acid mist environment. Its corrosion resistance is significantly better than that of pure copper rods, which can effectively prevent copper ion precipitation and contamination of electrolyte, ensuring the purity of electrolytic products. It is suitable for most conventional hydrometallurgical electrolysis conditions, and the procurement cost is lower than that of titanium-clad copper structure, making it cost-effective.
High conductivity and low loss, reducing production power consumption: The inner core is made of high-purity T2 copper with a conductivity of ≥98% IACS, which is far superior to that of pure stainless steel and carbon steel rods. It exhibits low voltage drop loss and minimal Joule heat during high current transmission, effectively reducing power consumption per ton of product. Long-term production can significantly save on electricity costs, making it a cost-effective option for energy-saving retrofitting of electrolysis systems.
High precision and high rigidity ensure stable electrolytic operation: After multiple straightening and precision machining, the overall straightness is ≤0.5mm/m. The cathode plate spacing is uniform after suspension, which can effectively avoid problems such as uneven current distribution, short circuit burning, and excessive difference in the thickness of precipitated metal caused by uneven electrode spacing; an optional built-in carbon steel reinforcing core structure can be used to greatly improve the bending load-bearing capacity and prevent deformation under heavy load conditions for a long time.
Long lifespan and low maintenance, resulting in lower overall operating costs: Under normal operating conditions, its service life can reach 2-3 times that of pure copper rods. It does not require frequent grinding, rust removal, or replating repairs, and only simple cleaning is needed, which greatly reduces the frequency of spare parts replacement and downtime for maintenance. At the same time, the procurement cost is significantly lower than that of similar titanium-clad copper products, making it the optimal cost solution for low-to-medium corrosion electrolysis scenarios.
Application Areas
Copper electrolytic refining: Standard matching cathode conductive hanger for permanent cathode copper electrolytic production line.
Hydrometallurgy: Electrode conductivity and load-bearing in conventional acidic electrolysis processes such as manganese electrolysis, nickel electrolysis, and cobalt electrolysis.
Conventional electroplating: Anode/cathode conductive hangers for ordinary hardware electroplating and plastic electroplating production lines.
Metallurgical upgrade: Upgrade and replacement solution for the existing electrolysis production line with excessively rapid corrosion and severe deformation of pure copper suspension rods.
Environmentally friendly smelting: conductive components for processes such as electrolytic recycling of waste metals and electrolytic purification of electrolytes.
Non-standard equipment: Various customized electrolytic cells and electrolytic reactors with matching conductive load-bearing components.
Product Details
Interface Standards
Composite interface bonding rate ≥95%, no large unbonded areas, bonding strength ≥80MPa.
01
Geometric Accuracy
Overall straightness ≤0.5mm/m, flatness of conductive contact surface ≤0.1mm, end dimension tolerance ±0.2mm.
02
Welding standards
The matching welding uses high-purity argon gas protection, the weld is dense without porosity or false welds, and after welding, it is ground smooth and flush with the base material.
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Surface quality
The stainless steel layer surface is free of scratches, cracks, and rust; the passivation film is uniform, complete, clean, and free of oil stains.
04
Product Supporting Documents
Authoritative International Qualification Certificates
GB/T 12769 Composite Product Conformity Test Report, with EN 10204 3.1 Original Material Certificate issued for each batch.
ISO 9001 Quality Management System Certification, ISO 14001 Environmental Management System Certification.
The interface combines third-party SGS test reports on strength, conductivity, corrosion resistance, and material purity.
The RoHS environmental compliance test report meets the environmental requirements of the metallurgical and electroplating 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 conductive contact 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 inside filled with shock-absorbing foam to secure it and prevent it from shifting or deforming 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: Why is a stainless steel-clad copper hanger used in the copper electrolysis permanent cathode process, instead of a pure copper or pure stainless steel hanger?
A1: The core reason is that neither pure copper nor pure stainless steel can simultaneously meet the requirements of conductivity, corrosion resistance, and cost. Pure copper has excellent conductivity, but it will gradually corrode in sulfuric acid electrolyte, resulting in a limited lifespan and the precipitation of copper ions that affect the electrolyte balance. Pure stainless steel has good corrosion resistance, but its conductivity is extremely low, leading to large voltage drop and high power consumption under high current, making it uneconomical. Stainless steel-clad copper suspension rods use T2 copper as the inner core to ensure high conductivity and an outer layer of 316L stainless steel to ensure corrosion resistance. This metallurgical composite achieves a combination of the advantages of both metals, solving the corrosion and loss problem of pure copper while avoiding the poor conductivity and high energy consumption of pure stainless steel. Furthermore, the procurement cost is significantly lower than that of titanium-clad copper products, making it a high-performance, cost-effective standard solution for conventional copper electrolytic refining operations.
Q2: Will delamination occur at the composite interface of stainless steel-clad copper hangers, affecting conductivity and service life?
A2: Stainless steel copper-clad hanger rods manufactured using metallurgical composite processes will not experience delamination issues under normal service. We employ a high-temperature hot-rolling diffusion composite process, achieving atomic-level metallurgical bonding between the stainless steel and copper interfaces. The bonding strength is ≥80MPa, and the bonding rate is ≥95%. This allows them to withstand thermal cycling, mechanical vibration, and long-term loads without exhibiting delamination, poor connections, or soaring contact resistance issues common in mechanically coated and cold-drawn coated structures. Each batch of products undergoes interface bonding strength testing before leaving the factory, and a corresponding test report is provided to ensure long-term conductivity stability.
Q3: What impact do the straightness and welding quality of the suspension rod have on electrolytic production, and what are your control standards?
A3: The straightness of the suspension rod directly determines the uniformity of the electrode spacing after the cathode plate is suspended, which is a key parameter affecting electrolyte level and operational safety. Poor straightness of the suspension rod will lead to cathode plate tilting, uneven electrode spacing, inconsistent current distribution, excessively high local current density, large differences in deposited metal thickness, and even short circuits and plate burning, affecting product yield and posing safety hazards. The welding quality between the suspension rod and the cathode plate directly affects the contact resistance. Poor welding will lead to localized heating, increased voltage drop, and even weld breakage and detachment. Our suspension rods undergo multiple precision straightening processes, with an overall straightness ≤0.5mm/m and a conductive contact surface flatness ≤0.1mm. Welding uses high-purity argon gas shielded welding, resulting in dense welds without porosity or incomplete welds. Post-weld full inspection with penetrant testing fully guarantees conductive uniformity and structural reliability.
Latest company news
The entire composite material production line has been fully upgraded, with an annual production capacity of 1,350 tons.
Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd. is located in Baoji, Shaanxi Province, known as China's Titanium Valley. Following its asset restructuring in 2024, the company has upgraded its entire production line, encompassing explosive lamination, hot rolling lamination, vacuum heat treatment, and precision deep processing. With over 20 years of experience in non-ferrous metal processing, the company has built a complete production chain from ingot smelting, forging, rolling to vacuum heat treatment, equipped with core production equipment such as a 350KW electron beam melting furnace, a 2000T hydraulic press, and a 1500mm vacuum annealing furnace.
The company's products cover titanium-based, copper-based, stainless steel-based, zirconium-based, and multi-layer transition composite plates, composite rods, and composite profiles, as well as deep-processed finished products such as electrolytic conductive beams, cathode rods, electroplating targets, and electrochemical electrodes. The annual production capacity of the full range of composite materials reaches 1,350 tons. All products are manufactured in strict accordance with international standards such as ASTM and ASME, and a full-process quality traceability system has been established, improving production efficiency by 30%. The delivery cycle for standard batch orders can be controlled within 15 days, providing a stable supply guarantee for customers in global hydrometallurgy, electronic electroplating, environmental water treatment, chemical, and new energy industries.
Deep processing capabilities have been fully expanded, enabling integrated supply from raw materials to finished products.
Focusing on market demand in the fields of hydrometallurgy, electronic electroplating, environmental water treatment and new energy materials, the company's independently developed titanium-based cathode plate and conductive component production and processing project officially passed government filing and environmental protection acceptance in October 2025 and is now in full production.
Building upon its existing composite substrates, the company has further expanded its deep-processing capabilities for finished products such as electrolytic conductive beams, stainless steel copper-clad suspension rods, PCB electroplated cathode targets, MMO-coated titanium anodes, and corrosion-resistant conductive structural components, achieving integrated production from composite substrates to finished products. The company continues to increase its investment in the research and development of dissimilar metal composite technologies, providing targeted material matching and structural design solutions for different operating conditions such as strong acids, strong alkalis, high temperatures and pressures, and high-current corrosion, helping customers optimize project costs and improve equipment lifespan and operational stability.
Upgraded global service system, with self-operated import and export rights to achieve full-category export coverage.
The company possesses formal self-operated import and export qualifications and has established a comprehensive global supply and service system, with business covering multiple countries and regions in Europe, Southeast Asia, North America, and the Middle East. The company collaborates with internationally renowned logistics carriers, providing diversified delivery solutions including sea freight, air freight, and China-Europe freight trains, supporting the export of its full range of composite materials, conductive components, and electrochemical electrode products.
Adhering to the quality philosophy of "Quality First, Customer Supreme," the company provides original material certificates (EN 10204 3.1) for each batch of products, and all bulk orders support testing by third-party organizations such as SGS and BV. The company offers free returns and exchanges for quality issues within 7 days of delivery and long-term product warranties. A professional engineering team provides 24-hour online technical support, and the company is committed to becoming a trusted long-term supplier of metal composite materials and refractory metal components for global customers.
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