, ,

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 Composition12% silicon (ER4047)
Diameter0.080″ (2.0 mm)
Length39″
Package Weight1 lb
Flame CompatibilityOxy-Acetylene / Oxy-MAPP
Load Capacity (Silicon Content)Higher fluidity & lower melting point than ER4043
Can this brazing rod be used as a direct replacement for ER4043?
While it can serve as a filler metal in place of ER4043, its **12% silicon content** provides increased silicon in the weld metal for improved strength and fluidity.
Do I need to clean the weld after using this rod?
No—this flux-cored rod eliminates the need for post-weld acid cleaning or flux removal.
Shopping Cart