Aluminum Brazing Sheet Coil For Automotive Heat Exchangers

2026-05-09

As a professional aluminum sheet exporter with over 20 years of experience in the aluminum processing industry and products sold globally, Haomei Aluminum focuses on the lightweighting and efficiency upgrade needs of the automotive industry. We meticulously research and produce aluminum brazing sheet coils specifically for automotive heat exchangers. With stringent quality standards, precise specifications, and core technological advantages, we have become the preferred partner for global automakers and heat exchanger manufacturers, using our professional aluminum processing capabilities to support the upgrading and iteration of automotive thermal management systems.

Our aluminum brazing sheet coil for automotive heat exchangers adopt a combination of standardized production and customized adaptation, covering specifications for all scenarios and precisely matching the production requirements of various automotive heat exchangers (radiators, condensers, intercoolers, oil coolers, and water-cooled plates for new energy vehicle batteries, etc.). The core specifications are as follows:
The alloy combination uses 3003/3003MOD as the core layer, combined with 4xxx series brazing layers such as 4343 and 4045, providing various composite structures such as 4045/3003, 4343/3003, and 4343/3003/7072;
The thickness ranges from 0.5-5.0mm, the width from 500-1200mm, and the length can be customized according to customer needs; the coverage rate is 4%-18% per side;
The tempers include O, H14, H22, and H24, fully meeting the stringent requirements of different molding processes and application scenarios.
All specifications comply with export standards and are compatible with mainstream global automotive production systems.

Relying on Haomei Aluminum's advanced production equipment and R&D capabilities, aluminum brazing sheet coil achieves differentiated competitiveness in terms of characteristics and advantages, balancing professionalism and practicality.
Firstly, it boasts superior brazing performance. Utilizing a hot-rolled composite process, the core layer and brazed layer interface are tightly bonded. The brazing temperature is controlled between 590-615℃, resulting in no defects such as porosity, cracks, or weld beads after welding. It exhibits a high welding rate and excellent joint strength, with a post-brazing strength retention rate of ≥85%, effectively ensuring the heat exchanger's sealing performance and structural stability.
Secondly, it offers outstanding heat exchange efficiency. The 3003 series core layer has a thermal conductivity exceeding 160W/(m·K). Combined with a rational composite structure design, it can rapidly conduct heat, significantly improving the working efficiency of the automotive heat exchange system and contributing to vehicle energy conservation and emission reduction.
Thirdly, it combines lightweight design with corrosion resistance. Aluminum alloy has only 1/3 the density of copper, allowing for a 40%-50% weight reduction in the heat exchanger, aligning with the trend of automotive lightweighting. Simultaneously, through precise element ratios and surface pretreatment processes, it effectively enhances the product's salt spray corrosion resistance. SWAAT testing shows a corrosion resistance lifespan 15%-25% longer than ordinary aluminum brazed plates, meeting the complex operating conditions required in automobiles.
Fourth, its excellent processing performance allows for easy processing of various techniques such as stamping, bending, and laser cutting. It boasts high forming precision and minimal deformation, making it suitable for producing complex-shaped heat exchanger components and reducing processing costs and waste for customers.

Haomei Aluminum has production bases with an annual capacity of 200,000 tons. Equipped with a professional R&D team and a comprehensive quality inspection system, every batch of aluminum brazing sheet coil products undergoes rigorous testing from raw material selection to finished product delivery to ensure compliance with international standards. We have a deep presence in the global market, exporting our products to Europe, America, South America, Southeast Asia, and other regions. With stable quality, flexible customization capabilities, and comprehensive export services, we have earned the trust of global customers. In the future, we will continue to focus on technological innovation in the automotive thermal management field, continuously optimizing product performance to provide global customers with more competitive aluminum brazed sheet coils and one-stop export solutions.

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