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Soft solder typically has a melting point range of 90 to 450 °C (190 to 840 °F; 360 to 720 K), [3] and is commonly used in electronics, plumbing, and sheet metal work. Alloys that melt between 180 and 190 °C (360 and 370 °F; 450 and 460 K) are the most commonly used.
Rosin is brittle and friable, with a faint pine odor. It is typically a glassy solid, though some rosins will crystallize, especially when brought into solution. [6] The practical melting point is variable, some being semi-fluid at the temperature of boiling water, others melting at 100 to 120 °C (212 to 248 °F).
"Hard soldering" or "silver soldering" is used to join precious and semi-precious metals such as gold, silver, brass, and copper. The solder is usually described as easy, medium, or hard in reference to its melting temperature, not the strength of the joint. Extra-easy solder contains 56% silver and has a melting point of 618 °C (1,145 °F).
Rosin used as flux for soldering A flux pen used for electronics rework Multicore solder containing flux Wire freshly coated with solder, held above molten rosin flux. In metallurgy, a flux is a chemical reducing agent, flowing agent, or purifying agent. Fluxes may have more than one function at a time.
Soldering copper pipes using a propane torch and a lead-free solder. Solder is a metallic material that is used to connect metal workpieces. The choice of specific solder alloys depends on their melting point, chemical reactivity, mechanical properties, toxicity, and other properties. Hence a wide range of solder alloys exist, and only major ...
For assemblies that come in contact with food and dairy. General purpose braze extensively used for joining copper, brass, bronze, nickel-silver, steel and nonferrous alloys. Suitable for dip-brazing of wires in electronics; the flow point matches melting point of borax, which is used as a flux to cover the surface of the molten metal in the ...