Premium Flux-Cored Copper-Aluminum Welding Rods
The Ultimate Solution for Seamless Cu-Al Bonding – No Extra Flux Needed!
💡 Product Overview
Say goodbye to complicated welding processes. Our Flux-Cored Copper-Aluminum Welding Rods feature a high-quality built-in flux core. This eliminates the need for external flux powder. Designed for low-temperature brazing, it delivers exceptional capillary action. It creates strong, leak-proof joints between copper and aluminum surfaces.
Whether you are fixing a refrigerator coil or manufacturing heat exchangers, this filler metal guarantees industrial-grade reliability.
🔥 Key Features & Benefits
- No Extra Flux Powder Required: Built-in non-corrosive flux saves time and labor costs.
- Low Melting Point: Starts melting at approx. 380°C – 420°C (716°F – 788°F). This minimizes base metal distortion.
- Superior Joint Strength: Formulated to prevent brittle intermetallic layers. It provides high tensile and shear strength.
- Excellent Fluidity: Offers outstanding capillary action for smooth, clean, and professional-looking welds.
- Eco-Friendly & Safe: Contains no cadmium or toxic elements. It complies with modern safety standards.
🛠️ Applications & Versatility
Perfect for both professional HVAC technicians and DIY enthusiasts:
- HVAC & Refrigeration: Copper-to-aluminum joints in evaporators, condensers, and air conditioning piping.
- Electrical Systems: Connecting copper wires to aluminum terminals, busbars, and transformers.
- Automotive: Repairing aluminum radiators and copper cooling lines.
- General Repairs: Fixing household appliances and kitchenware made of mixed metals.
📊 Technical Specifications
| Property | Value / Details |
|---|---|
| Material Composition | Al-Si / Zn-Al alloy matrix with specialized fluoride flux |
| Melting Range | 380°C – 420°C (716°F – 788°F) |
| Diameter | 2.0mm (5/64″) |
| Length | 1 Meter (39.4 inches) per rod |
| Applicable Metals | Aluminum-to-Aluminum, Copper-to-Aluminum, Aluminum-to-Stainless Steel |
| Welding Method | Torch brazing (Propane/MAPP gas), induction heating, or furnace |
📝 How to Use (Step-by-Step Guide)
- Clean the Surface: Polish the welding zone with a stainless steel wire brush. Remove all oil, rust, and dirt.
- Cut to Size (Optional): Since each rod is 1 meter long, you can easily cut it into shorter lengths for easier handling if needed.
- Heat the Base Metal: Uniformly heat the joint area using a torch. Do not point the flame directly at the welding rod.
- Apply the Rod: When the base metal reaches the melting temperature, touch the rod to the joint. Let the heat melt the rod.
- Flow and Fill: Allow the melted alloy to flow smoothly into the joint via capillary action.
- Cool and Inspect: Let the joint cool naturally. No post-weld flux cleaning is required as the residue is non-corrosive.
📦 Package Includes
- Flux-Cored Copper-Aluminum Welding Rods (2.0mm x 1M)
- (Available in packs of 10, 20, or 50 pieces – Please select your pack size above)
- Heavy-duty protective shipping tube to prevent bending during transit.
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