Aluxcor 4047 Flux Cored Brazing Wire

Aluxcor 4047 flux-cored brazing wire is engineered for manual and semi-automatic aluminum flame brazing operations, especially in HVAC manufacturing and repair applications. It is commonly used for brazing aluminum components such as return bends, headers, tube assemblies, and distributors.

The integrated flux core removes the need for separate flux application. Its core design releases a controlled amount of flux into the joint area, providing proper oxidation protection while ensuring efficient capillary filling by the molten aluminum alloy.

Aluxcor 4047 is available with multiple flux compositions tailored to different heating conditions and base metal requirements. These formulations help optimize brazing performance across various applications while maintaining consistent joint quality.

All flux core formulations are non-hygroscopic, meaning post-braze flux residue generally does not require cleaning, simplifying production and servicing processes.

Key Benefits

Designed for manual and semi-automatic aluminum flame brazing
Eliminates need for separate flux application
Controlled flux release improves joint protection
Supports strong capillary flow and proper joint filling
Suitable for HVAC aluminum component assembly
Multiple flux formulations available for application flexibility
Non-hygroscopic flux reduces need for post-braze cleaning

Specifications

Product Name: Aluxcor 4047
Product Type: Flux Cored Aluminum Brazing Wire
Base Alloy: Aluminum Silicon 4047
Application Method: Manual and semi-automatic flame brazing
Flux Type Options: Potassium and cesium fluoroaluminate formulations
Formula 15.1 Flux Range: 1049°F to 1061°F (564°C to 572°C)
Formula 15.2 / 15.3 / 15.4: Cesium fluoroaluminate blends for lower activity and brazing temperature
Magnesium Alloy Compatibility: Suitable for alloys such as 6063
Solidus Temperature: 1070°F (577°C)
Liquidus Temperature: 1080°F (582°C)
Brazing Range: 1080°F to 1120°F (582°C to 605°C)
Electrical Conductivity: 40% IACS
Weight per Foot per Pound (0.090 in diameter): 184.5 ft/lb
Flux Residue: Non-hygroscopic, cleaning typically unnecessary

Applications

HVAC aluminum coil and component brazing
Return bend and distributor assembly
Header and tube assembly joining
Aluminum heat exchanger fabrication
Repair and production brazing operations

FAQs

What makes Aluxcor 4047 different from standard brazing wire?
It contains a built-in flux core that eliminates separate flux application and ensures controlled flux delivery during brazing.

Is cleaning required after brazing?
In most cases cleaning is unnecessary because the flux residue is non-hygroscopic.

Can it be used on magnesium-containing aluminum alloys?
Yes, specific flux formulas allow brazing of alloys such as 6063.

Where is this wire commonly used?
It is widely used in HVAC manufacturing and repair for aluminum component brazing.

Short Description
Aluxcor 4047 flux-cored wire provides consistent aluminum brazing performance with integrated flux protection, making it ideal for HVAC and industrial aluminum assembly work.