Brass brazing wire is a copper-zinc alloy filler metal, often with tin or silicon, used to join metals like steel, copper, and cast iron by melting it with a torch to flow into gaps, creating strong, durable, corrosion-resistant bonds, ideal for automotive, plumbing, and HVAC work, available in various diameters and forms (rods, spools).
Key Characteristics:
Composition: Primarily copper and zinc, sometimes with additives like tin (Sn) or silicon (Si) for improved flow and strength, explains this source.
Flow: Offers excellent flow and wetting (capillary action) to fill gaps, especially with proper flux, according to this source.
Corrosion Resistance: Known for good resistance to corrosion, a key feature for long-lasting joints, as stated in this source and Veer Metal Engineering Corporation.
Melting Point: Operates at high temperatures (around 890-905C), requiring a torch like oxy-acetylene, details this source and this source.
Applications:
Joining ferrous (steel) and non-ferrous metals (copper, brass, cast iron).
HVAC, automotive (radiators), plumbing, and general metal fabrication.
Artistic metalwork and creating strong, permanent bonds.
Forms & Usage:
Available as rods or wire on spools in various diameters (e.g., 0.8mm to 6mm).
Requires a flux (like copper flux powder) for effective bonding and cleanliness, notes this source.
Uses capillary action to draw the molten filler metal into the joint, this source explains.
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