Aluminum Brazing Welding Material

Aluminum brazing is a critical joining process that enables strong, lightweight, and corrosion-resistant assemblies—widely applied in automotive thermal systems, new energy battery cooling, industrial HVAC, and electronic devices. With options like vacuum and controlled atmosphere (CAB/Nocolok) brazing, this technique supports complex structures with high efficiency and precision.

Chalco provides a complete portfolio of aluminum brazing materials and components, including base alloys, clad strips and sheets, fins, microchannel tubes, and brazing filler wires. Backed by advanced manufacturing and alloy expertise, we offer integrated solutions tailored to your thermal management challenges.

Chalco aluminum brazing product system

Chalco brazing base material

High-quality base alloys are the foundation of durable, corrosion-resistant brazed assemblies. Chalco supplies a wide selection of aluminum strip, sheet, and tube materials tailored for heat exchanger cores, structural support components, and composite brazing applications. Our alloy options are engineered for excellent formability, strength, and thermal conductivity—ensuring high reliability across automotive, HVAC, and energy sectors.

All base alloys are available in coils, sheets, strips, and tubes, with customizable dimensions and surface treatments. Need help selecting the right base metal for your application? Contact our engineering team for alloy matching and technical consultation.

Chalco brazing layer filler metal

Chalco offers a full portfolio of aluminum-silicon based filler alloys designed for a wide range of brazing processes, including vacuum brazing, controlled atmosphere brazing (CAB/Nocolok), and localized torch or induction brazing. These alloys feature excellent flowability, precise melting ranges, and strong metallurgical compatibility with core materials, ensuring consistent joint strength and corrosion resistance.

With a rich variety of alloys and product types, our brazing base materials are widely used in key fields such as automotive radiators, air conditioning condensers, new energy power battery cooling modules, and industrial heat exchangers, helping customers achieve high efficiency, energy savings, and stable performance.

As a professional supplier of aluminum alloy brazing base materials, we are committed not only to continuous product quality improvement but also to providing comprehensive technical support and flexible customization services to meet the personalized needs of our clients. Our production capacity and quality management system ensure the consistent delivery of every batch, helping customers enhance their product competitiveness and market performance. Feel free to contact us for inquiries.

Clad brazing materials

Chalco's clad aluminum brazing materials integrate a corrosion-resistant filler layer with a high-strength core alloy, forming a reliable multi-layer composite that simplifies brazing and ensures stable, high-quality joints. These materials are widely used in heat exchangers, condensers, battery cold plates, and electronic cooling modules, supporting both large-scale production and customized engineering needs.

• Core materials are generally composed of aluminum manganese 3 series aluminum alloy, which plays the role of intensity support and heat dissipation.
• The cladding layer is composed of aluminum-silicon 4000 series alloy 4343, 4045, 4047 or other aluminum alloy, which plays a role in welding or improving the performance of the overall material.

4045/3003/4045

4045/3003/7072

4045/3A11/4045

4045/7A11/7072

4045/6951/4045

Thickness: 0.05mm-6mm Width: 5mm -2200mm

Clad aluminum brazing sheet

For automotive radiators, air conditioners, other heat exchangers...

Clad aluminum brazing coil strip

Suitable for automotive air conditioners, refrigerator condensers...

Clad aluminum brazing foil

Used in battery, electronic device cooling, and aerospace applications...

Chalco's clad brazing products streamline your assembly process by combining brazing and base material into a single sheet. Let our engineers recommend the right clad structure for your specific brazing application—Contact us or request a custom quote.

Chalco brazing wire & auxiliaries

High-performance welding rods and soldering wires (TIG/MIG/hand-brazing), including ER4045, 4047, 4943, with excellent flow, corrosion resistance, and compatibility.

Chalco offers a full range of aluminum brazing consumables—including filler rods, spooled welding wires, and self-brazing solders—designed for TIG, MIG, vacuum, and Nocolok brazing. Using premium alloys like 4045, 4047, 4943, ER5356, and ER5183, our consumables deliver reliable flow, corrosion resistance, and joint strength for automotive, HVAC, battery, and thermal management systems.

Aluminum filler rod for TIG

Aluminum welding wire for TIG & MIG

4043 4047 Aluminium Welding Wire Rod

ER5183 ER5356 Aluminum Welding Wire Rod

5556 5556A Aluminum Welding Wire Rod

4643 Aluminum Welding Wire Rod

4943 Aluminum Welding Wire Rod

Self-brazing aluminum solder

Whether you're assembling high-efficiency heat exchangers or performing structural aluminum welding, Chalco's filler wires and solders ensure consistent performance and clean brazing results. Need help choosing the right wire alloy for your process? Talk to our experts or request a technical data sheet.

Production capacity of Chalco aluminum brazing welding material

Chalco integrates alloy production, forming, processing, and finishing to deliver a full-spectrum solution for aluminum brazing materials. Our one-stop manufacturing system ensures stable quality, efficient lead times, and strong traceability across every stage of production. With seamless alignment between raw materials and structural component design, we help customers optimize performance, reduce assembly complexity, and improve reliability.

• Chalco maintains large-scale production lines for aluminum brazing materials, covering billets, clad sheets, tubes, wires, and structural parts with stable annual output and rapid delivery capacity.
• Our manufacturing system integrates extrusion, rolling, drawing, annealing, brazing, and surface treatment, ensuring full-process support for both standard and customized brazing products.
• In addition to base materials, we offer brazed structural components such as high-frequency welded tubes, micro-channel profiles, cold plate blanks, and custom-formed assemblies.

High-frequency welded pipes

Aluminum brazing welding fin

Composite microchannel aluminum tube

Solutions & Applications for aluminum brazing materials

Chalco's aluminum brazing materials and components are widely used in thermal management and lightweight systems across automotive, electronics, power, and industrial sectors, offering reliable performance under demanding conditions.

The brazing aluminum sheet foil coil strip are widely used in automotive heat exchange systems, such as engine radiators, engine oil radiator, medium refrigerator, air -conditioning condenser and evaporator etc.

Aluminum brazing material for automotive thermal managment

Automotive applications rely heavily on aluminum brazing materials for efficient heat exchange and thermal management, covering both traditional and electric vehicle systems.

Typical Components: Radiators, intercoolers, oil coolers, HVAC modules, EV battery cold plates.

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Chalco's supplied products for this sector

Brazing clad sheets & strips

Micro-channel tubes

HF welded tubes

Battery cold plate blanks

Aluminum welding wires

Auxiliary brazing materials

Aluminum brazing material for power electronics cooling

Reliable heat dissipation for high-performance electronics such as IGBTs and inverters requires highly consistent and thermally efficient brazed components.

Typical Components: Liquid cold plates, inverter housings, electronic heat sinks, rectifier modules.

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Chalco's supplied products for this sector

Aluminum cold plate and fin cold plate

Brazing base materials

Aluminum filler rods

Aluminum brazing material for industrial HVAC & chillers

Industrial cooling systems demand corrosion-resistant, durable materials for long-term performance in HVAC and refrigeration environments.

Typical Components: Plate heat exchangers, condenser tubes, chillers, HVAC evaporator cores.

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Chalco's supplied products for this sector

Brazing clad strips

HF welded tubes

Pre-treated Brazing Tubes (Degreased, Flux-coated...)

Aluminum brazing material for renewable energy systems

Effective thermal control is essential in solar inverters, wind power electronics, and energy storage, where compact heat exchange is critical.

Typical Components: Heat sinks, inverter cold plates, power module housings, battery enclosures.

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Chalco's supplied products for this sector

Precision cold plate structures

Brazing clad materials

Shaped filler wires & rods

Aluminum brazing material for aerospace & rail transit

Aluminum brazing components support lightweight, high-efficiency thermal systems in aerospace and railway applications under strict safety standards.

Typical Components: Compact heat exchangers, electronic cooling modules, structural housings.

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Chalco's supplied products for this sector

High-strength clad aluminum sheets

Vacuum-brazed assemblies

Special alloy welding wires (Ti, Nickle...)

Choose Chalco as the aluminum brazing welding material supplier

We have more than 30 years of experience in supplying clad aluminum brazing material, self-brazing Aluminum solder and aluminum soldering paste powder for brazed heat exchangers, intercoolers, air conditioner condensers and evaporators etc. and today we have Rolled aluminum for appliances and other niche markets to become a global player.

We have a complete set of domestic advanced aluminum brazing materials research and development, testing and analysis instruments, which guarantees the efficiency of new product research and development and accelerates the transformation of scientific and technological achievements. In addition, our R&D & innovation and validation capabilities can help enhance our customers' competitiveness by saving time and costs in new product development and marketing.

We have passed the IATF16949 certification required by the automotive industry, the AS9100 certification required by the aviation industry, and the DNV BV LR ABS RINA CCS certification required by the shipbuilding industry etc.

The Chalco brand stands for quality, delivery and a strong reputation. With leading technology and globally competitive products, we can continue to develop together with our customers in the future.