| A | B |
|---|
| Alloy | Any substance made up of two or more metals. |
| Annealing | Heat treating to soften metal. Soft copper tubing is made by annealing hard copper. |
| Capillary action | The movement of a liquid along the surface of a solid in a kind of spreading action. |
| Flashback arrestor | A valve that prevents the flame from traveling back from the tip and into the hoses. |
| Flux | A chemical substance that prevents oxides from forming on the surface of metals as they are heated for soldering, brazing, or welding. |
| Nonferrous | A group of metals and metal alloys that contain no iron. |
| Oxidation | The process by which the oxygen in the air combines with metal to produce tarnish and rust. |
| Solder | A fusible alloy used to join metals. Also known as soft soldering or sweat soldering. |
| Soldering | A method of joining metals with a nonferrous filler metal using heat below 800°F and below the melting point of the base metals being joined. |
| Wetting | A process that reduces the surface tension so that molten (liquid) solder flows evenly throughout the joint. |
| Tubing | Thin-wall pipe; generally, pipe that can be easily bent. |
| Sweating | A method of joining pipe in which solder is applied to the joint and heated until the solder flows into the joint. |
| Piping | A generic term used to designate thickwall pipe that can be threaded and joined with threaded fittings. |
