Aluminum Brazing Sheet 4343/3003 Used in Base Plate for Plate Heat Exchangers

Plate heat exchangers are critical in industries like HVAC, refrigeration, and chemical processing, relying on efficient heat transfer and structural integrity. The base plate, a key component, demands materials that combine strong brazability, thermal conductivity, and corrosion resistance. Aluminum brazing sheet 4343/3003 emerges as the ideal choice for this application, and Henan Mingtai Aluminum Co, Ltd. (stock code: 601877) delivers high-quality 4343/3003 brazing sheets tailored for base plates of plate heat exchangers.​

Why Aluminum Brazing Sheet 4343/3003 is Perfect for Base Plate of Plate Heat Exchangers​

The 4343/3003 aluminum brazing sheet is a clad material, with 4343 aluminum (Al-Si alloy) as the brazing layer and 3003 aluminum (Al-Mn alloy) as the core. This combination offers properties essential for plate heat exchanger base plates:​

●Superior Brazing Performance: The 4343 cladding contains 6-8% silicon, which lowers its melting point to around 577-590°C—significantly below the 650°C melting point of the 3003 core. During brazing, the 4343 layer melts to form strong, leak-proof joints between base plates and heat exchange fins, ensuring efficient heat transfer without damaging the core structure.​

●Excellent Thermal Conductivity: Efficient heat exchange depends on rapid heat transfer. The 3003 core has a thermal conductivity of 180 W/(m·K), while the 4343 cladding maintains good thermal performance. Together, they ensure the base plate transfers heat quickly between fluids, maximizing the plate heat exchanger’s efficiency.​

●Strong Corrosion Resistance: Plate heat exchangers handle diverse fluids, including water, refrigerants, and mild chemicals. The 3003 core resists general corrosion, while the 4343 cladding forms a protective oxide layer. This dual resistance prevents degradation, extending the base plate’s service life in harsh operating environments.​

●Lightweight and High Strength: Compared to copper or steel, aluminum brazing sheet 4343/3003 reduces the base plate’s weight by 40-50%, easing installation and lowering energy consumption of the plate heat exchanger. The 3003 core provides sufficient tensile strength (≥145 MPa) to withstand pressure differences between fluids, ensuring structural stability.​

Mingtai Aluminum’s 4343/3003 Aluminum Brazing Sheet for Base Plate of Plate Heat Exchangers​

Mingtai Aluminum, with over 20 years of aluminum processing experience, produces 4343/3003 brazing sheets optimized for plate heat exchanger base plates:​

●Precise Cladding Control: Our advanced rolling lines (including CVC 6-roller cold rolling mills) ensure uniform cladding thickness (4343 layer accounts for 5-10% of total thickness). This consistency guarantees even brazing and avoids weak spots in the base plate, critical for plate heat exchanger reliability.​

●Strict Quality Testing: Each batch of 4343/3003 brazing sheet undergoes tests for brazing flow, tensile strength, and corrosion resistance. We simulate brazing conditions to verify joint strength, ensuring the base plate meets the rigorous standards of plate heat exchangers.​

●Customization for Plate Heat Exchangers: Mingtai offers 4343/3003 brazing sheets in various thicknesses (0.8-3.0mm) and widths (500-1800mm) to match different base plate designs. We can also adjust cladding ratios based on specific brazing requirements, optimizing performance for large or compact plate heat exchangers.​

Applications of 4343/3003 Aluminum Brazing Sheet in Plate Heat Exchanger Base Plates​

Mingtai’s 4343/3003 brazing sheets are widely used in plate heat exchangers across industries:​

●HVAC Systems: Base plates made from 4343/3003 brazing sheets efficiently transfer heat between hot and cold water circuits, improving the energy efficiency of air conditioning units.​

●Refrigeration Equipment: In industrial refrigerators, these base plates withstand low temperatures and refrigerant exposure, ensuring stable heat exchange in cooling processes.​

●Chemical Processing: The corrosion resistance of 4343/3003 brazing sheets makes them suitable for base plates handling mild chemical solutions, preventing contamination and maintaining heat transfer efficiency.​

Contact Mingtai for 4343/3003 Aluminum Brazing Sheet for Plate Heat Exchangers​

For reliable 4343/3003 aluminum brazing sheets for base plates of plate heat exchangers, trust Mingtai Aluminum.​

Email: sales@mingtai-al.com​

Whatsapp/Wechat: +86-17760728273​

Website: www.mingtai-al.com​

Contact us to discuss your plate heat exchanger needs and get a customized 4343/3003 brazing sheet solution!