TGB ER4047 Flux-Cored Aluminum Brazing Rod – 39″ x 0.080″ (1 lb)
$66.99 on Amazon.com (as of October 18, 2026, 7:56 AM EST) View details ↗
The **TGB ER4047 Flux-Cored Aluminum Brazing Rod** is a high-performance solution for aluminum brazing, offering superior fluidity and a lower melting point compared to standard ER4043 rods. Its **12% silicon alloy** enhances weld strength and reduces cracking, making it ideal for demanding applications in automotive, HVAC, and industrial repair. No additional flux is required—simply feed the rod directly into an **Oxy-Acetylene or Oxy-MAPP flame** for clean, efficient brazing without post-weld cleaning.
Designed for versatility, this rod can also serve as a **high-silicon filler metal** when replacing ER4043, improving weld integrity in aluminum alloys. The **39″ length and 0.080″ diameter** provide ease of handling, while the **1 lb package** ensures long-lasting performance for professionals. Whether you're working on radiators, heat exchangers, or structural components, this brazing rod delivers reliable results without the hassle of flux cleanup.
| Alloy Composition | 12% silicon (ER4047) |
|---|---|
| Diameter | 0.080″ (2.0 mm) |
| Length | 39″ |
| Package Weight | 1 lb |
| Flame Compatibility | Oxy-Acetylene / Oxy-MAPP |
| Load Capacity (Silicon Content) | Higher fluidity & lower melting point than ER4043 |






