Solder is a fusible metal alloy used to join together metal work pieces and having a melting point below that of the work piece (s). Soft solder is typically thought of when solder or soldering is mentioned, with a typical melting range of 90 to 450 �C. It is commonly used in electronics, plumbing, and assembly of sheet metal parts. Manual soldering uses a soldering iron or soldering gun. Alloys that melt between 180 and 190 �C (360 and 370 �F) are the most commonly used. Soldering performed using alloys with a melting point above 450 �C (840 �F) is called brazing.

Halide-free solder wire, and suitable for the repair operation

Used in the tin-lead process

Fast melting, good wetting, and expansibility.

No break for the core, no splash, and no odor.

Good solder ability and soldering joints with high brightness and strength

Good mechanical performance

Widely used in electronics, lighting, communication, radio, computer, instruments and other field

The residue is easy to remove by hot air after soldering work if necessary

Available in many alloy composition, other alloy compositions are also available