Harris Products Group, 015FC503POP, Brazing Alloy, Copper-Zinc, Flux-Coated, Low-Fuming, 1.1 lb

Harris® 15 low fuming bronze (LFB) flux-coated is considered a “braze-weld” alloy as this copper/zinc alloy exhibits minimal capillary action during brazing. This limits joint design primarily to lap, tee, and butt joints. Butt joints require some edge preparation typically incorporating beveled edges to provide a location for filler metal to be applied and to ensure alloy penetration to the joint root. LFB was developed primarily to braze steel and some cast iron grades including malleable and gray iron. It can be used to join copper but due to its elevated melting temperature care must be taken during brazing to avoid overheating or melting the copper. It is used with the oxy-fuel process. This alloy is flux-coated, eliminating the need for manual flux application.

Features

• Good machinability
• Good color match to brass
• Limited joint designs to lap, tee and butt joints, although butt joints require some edge preparation
• Developed to braze steel and some cast iron grades including malleable and gray iron and joining copper
• Copper-zinc braze-weld flux-coated rod using oxy-fuel
• Exhibits minimal capillary action during brazing
• Conveniently packaged for point-of-purchase display
• Corrosion resistance is similar to most high zinc brass alloys. Care should be taken on service conditions where water immersion is involved as dezincification is a potential issue.
• Produces porosity-free deposits
• Flux coating provides excellent wetting action with no objectionable fuming

• Weight: 1.1 lbs
• Material: Copper-Zinc Alloy
• Melting Range: 1590 F - 1630 F (866 C - 888 C)
• Brazing Range: 1670 F - 1750 F (910 C - 955 C)
• Joint Design: Lap, Tee, Butt
• Edge Preparation: Beveled Edges for Butt Joints
• Process: Oxy-Fuel Brazing
• Corrosion Resistance: Similar to high zinc brass alloys; dezincification possible with water immersion
• Compliance: AWS A5.8 RBCuZn-C, ASME SFA 5.8 RBCuZn-C, ISO 17672 Cu681
• Chemical Composition: Tin 0.80-1.10%, Copper 56.0-60.0%, Iron 0.25-1.20%, Manganese 0.01-0.50%, Silicon 0.04-0.15%, Zinc Remainder, Lead max 0.05%, Aluminum max 0.01%, Others total max 0.50%

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