What type of joint is characterized by the joining of metal parts with metallic mixtures of alloys melting below 1,000ºF?

A soldered joint is defined by the process of joining metal parts using a filler metal that has a melting point below 1,000°F. In soldering, the filler, typically an alloy made primarily of tin and lead, is melted and used to connect two or more workpieces together without melting the base materials. The lower melting point of the soldering process makes it suitable for joining electrical components, plumbing, and other metal parts where high temperatures could be detrimental.

In contrast, a brazed joint uses a filler metal that has a melting point above 1,000°F but below the melting point of the base metals, allowing for a strong bond without melting the original materials. Welded joints involve melting the base metals themselves along with any filler to achieve a strong mechanical bond. Plastic solvent cement joints use chemical solvents to fuse plastic materials together, which differs dramatically from the metal joining processes described in soldering, brazing, and welding.