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Harris ALUXCOR 4047 F15.3 Aluminum Flux-Cored Brazing Alloy .062 1/2 lb Tube - A4047CWC06220L

SKU: A4047CWC06220L
$56.73 $75.64
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Harris ALUXCOR 4047 F15.3 Aluminum Flux-Cored Brazing Alloy .062 1/2 lb Tube - A4047CWC06220L
Overview

The Harris ALUXCOR 4047 F15.3 (part A4047CWC06220L) is a 0.062" diameter aluminum-silicon flux-cored brazing alloy sold in a 1/2 lb tube — an AWS-classified aluminum brazing rod for joining aluminum base metals using a torch or furnace without separate flux, providing a clean, self-fluxing single-step braze.

Specifications
Type Brazing Rod (Flux-Cored Aluminum Brazing Alloy)
Part Number A4047CWC06220L
Compatible With Aluminum base metals: 1xxx, 3xxx, 5xxx, and 6xxx series alloys (verify liquidus temperature compatibility)
Material Aluminum-silicon alloy (Al-Si, AWS classification 4047 — approximately 12% silicon)
Wire / Rod Diameter 0.062"
Flux Type Flux-cored (F15.3 flux core — no separate flux required)
Quantity per Pack 1/2 lb tube
Application Torch and furnace brazing of aluminum HVAC, refrigeration, automotive, and general aluminum assemblies
Recommended Applications
  • HVAC and refrigeration: Brazing aluminum evaporator coils, condenser tubes, manifolds, and fittings where the lower flow temperature of a 4047-class alloy is advantageous over a 4043 filler.
  • Automotive and motorsport: Joining aluminum heat exchangers, intercoolers, oil coolers, and tubing assemblies with a clean flux-cored braze joint that requires minimal post-braze cleaning.
  • General aluminum fabrication: Connecting aluminum tubing, plate, and castings where base metal melting temperature is not compromised by the brazing cycle.
  • Field and torch repair: The self-contained flux core eliminates the need to carry or apply separate flux, making ALUXCOR convenient for on-site aluminum repair with a propane or MAP-gas torch.
Compatibility / What It Fits

The Harris ALUXCOR 4047 is a brazing alloy, not a welding wire — it is used in brazing processes (oxy-acetylene torch, MAP-gas torch, or furnace), not TIG or MIG welding. The brazing temperature for 4047-class alloys is approximately 1080–1100°F (582–593°C); ensure your base metal alloy has a solidus temperature above this range before brazing.

Compatible base metals include most 1xxx, 3xxx, and 6xxx series wrought aluminum alloys. Many 5xxx alloys with higher magnesium content can be more difficult to braze; verify compatibility with Harris technical data.

The F15.3 flux core is water-soluble for easy post-braze cleanup. Residual flux should be removed after brazing to prevent corrosion in service.

Browse the full range of brazing and TIG rods at WeldingMart TIG Rod & Welding Rods.

Why Buy from WeldingMart

WeldingMart is an authorized Harris Products Group distributor carrying the full Harris brazing alloy line — including ALUXCOR, Stay-Silv, and other specialty fillers. Every Harris product ships from our US warehouse with full manufacturer backing. Our team has the technical knowledge to help you confirm alloy selection, brazing temperature, and process recommendations for your specific aluminum application. We offer competitive pricing and fast shipping on Harris brazing rods and filler metals.

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