Brazing Aluminum Sheet for Heat Exchanger Manufacturing

In the manufacturing of key components such as heat exchangers, automotive radiators, and air conditioning condensers, material selection directly determines the performance, efficiency, and lifespan of the final product. If you are looking for a material that combines excellent brazing performance, superior corrosion resistance, and high strength stability, then Brazing Aluminum Sheet is undoubtedly your ideal solution. As an expert with years of deep experience in the aluminum industry, Flait Aluminum fully understands the stringent requirements of brazing processes and is committed to providing customers with high-performance brazing aluminum sheets and coils.

Why Choose Brazing Aluminum Sheet?

Brazing is a precision technique that joins base materials using molten filler metal (brazing alloy). It imposes extremely high demands on the chemical composition, surface condition, and high-temperature performance of the parent material. The brazing aluminum sheets provided by Flait Aluminum (such as classic combinations like 4343/4045 cladding on 3003/7072 core material) are specifically designed for this purpose:

• Excellent Brazing Fluidity: The aluminum-silicon alloy cladding (e.g., 4343, 4045) has a suitable melting point. During the brazing heating process, it spreads evenly and fills gaps thoroughly, forming smooth, full fillets and ensuring dense, leak-free connections.
• Powerful Corrosion Protection: The scientific combination of core material (e.g., 3003) and corrosion-resistant alloy layer (e.g., 7072) effectively resists erosion from coolant, humid air, and chemical media after brazing, significantly extending the product’s service life.
• Stability at High Temperatures: Strict control of the core material’s grain size and recrystallization behavior ensures parts maintain dimensional stability during the brazing thermal cycle, preventing deformation or collapse.
• Good Formability: Necessary processes such as stamping, drawing, and bending can be performed before brazing to create complex structural parts like fins, tube sheets, and side plates.

Core Advantages of Flait Aluminum’s Brazing Aluminum Sheet

✅ Precise Cladding Ratio Control: We utilize advanced rolling technology to ensure the aluminum-silicon cladding thickness is uniform and the ratio is accurate (commonly 10%), providing a solid foundation for stable and consistent brazing results.

✅ High-Quality Surface Finish: Strict production environment controls and protective packaging (e.g., interleaving with dust-free paper) ensure the aluminum sheet surface is free from scratches, oil stains, and oxidation spots, which is a prerequisite for achieving good brazing results.

✅ Uniform Material Properties: Fine process management from melting and casting, hot rolling, to cold rolling guarantees uniform material structure and stable mechanical properties, ensuring your stamping processes proceed smoothly.

✅ Professional Technical Support: We are not just a material supplier but also your manufacturing partner. We can provide material selection advice and process optimization support based on your specific brazing process (e.g., CAB – Controlled Atmosphere Brazing, Vacuum Brazing) and product structure.

Application Fields of Brazing Aluminum Sheet

Our brazing aluminum sheets are widely used in:

🔹Automotive Industry: Radiators, intercoolers, evaporators, heater cores

🔹Refrigeration and Air Conditioning: Condensers, evaporators

🔹Aerospace, Household Appliances, and various other precision components requiring efficient heat exchange.

Flait Aluminum leverages its expertise and expertise in aluminum processing to ensure that every roll of brazed aluminum sheet delivered is characterized by stable performance, precise dimensions, and a flawless finish. We offer a wide range of alloys, specifications (thickness, width), and coil weights, and can provide slitting services tailored to your needs, maximizing material utilization and production efficiency.

Original Source:Brazing Aluminum Sheet Coil Strip