Joining process like brazing but with fillers melting below 450 °C, usually tin-based alloys with silver, copper or antimony. It is used for electronics, plumbing and sheet metal where joints carry low loads and stay cool. Flux strips oxide so the solder can wet, and joint strength depends on clearance and wetting. Potable water lines require lead-free solder.
That's soldering, not a braze job, it's a drain line, 95/5 and a propane torch is plenty.
Also heard as
- solder
- sweating
- soft soldering
Related terms
Brazing
Joining metals with a filler melting above 450 °C but below the base metals, drawn in by capillary action.
Wetting
Molten filler spreading across a clean surface and bonding to it, needed for a sound braze or solder.
Flux
Material that shields molten metal from air and cleans oxides, as rod coating, wire core, granules or paste.
Joint clearance
The gap between mating parts in a brazed or soldered joint, which controls capillary flow and strength.