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2. Soldering - Wikipedia

   en.wikipedia.org/wiki/Soldering

   Soft soldering is characterized by having a melting point of the filler metal below approximately 400 °C (752 °F), [9] whereas silver soldering and brazing use higher temperatures, typically requiring a flame or carbon arc torch to achieve the melting of the filler. Soft solder filler metals are typically alloys (often containing lead) that ...

3. Solder alloys - Wikipedia

   en.wikipedia.org/wiki/Solder_alloys

   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.

4. Filler metal - Wikipedia

   en.wikipedia.org/wiki/Filler_metal

   Soft soldering uses a filler that melts at a lower temperature than the workpiece, often a lead-tin solder alloy. Brazing and hard soldering use a higher temperature filler that melts at a temperature which may approach that of the base metal, and which may form a eutectic alloy with the base metal.

5. List of brazing alloys - Wikipedia

   en.wikipedia.org/wiki/List_of_brazing_alloys

   General purpose filler metal for aluminium soldering/brazing with a torch. Grayish-white color. 98: 2: Al 73 Cu 20 Si 5 Ni 2 Bi 0.01 Be 0.01 Sr 0.01: Al–Cu–Si 515/535 [5] – For brazing aluminium. Traces of bismuth and beryllium disrupt the surface aluminium oxide. Strontium refines grain structure of the brazing alloy, improving ductility ...

6. Solder - Wikipedia

   en.wikipedia.org/wiki/Solder

   Solder used in making electrical connections also needs to have favorable electrical characteristics. 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.

7. Flux (metallurgy) - Wikipedia

   en.wikipedia.org/wiki/Flux_(metallurgy)

   In high-temperature metal joining processes (welding, brazing and soldering), fluxes are nearly inert at room temperature, but become strongly reducing at elevated temperatures, preventing oxidation of the base and filler materials.