Products
Solder System Types
Many metals and their alloys can be used as solders. The following table gives a quick overview of various solder materials and their applications:
Solder |
Applications |
Characteristics |
Bismuth |
Low temperature soldering |
Deforms easily. Needs Aggressive fluxes. |
Cadmium-Silver |
High temperature applications |
Toxic. Good tensile strength |
Indium |
Low temperature soldering, wets glass |
Deforms easily |
Lead-Silver |
High temperature applications |
Good high temperature properties, good fatigue strength. Medium or low flow properties |
Tin-Antimony |
High temperature and food industry applications |
Non-toxic. Good high temperature properties. Better electrical conductivity and strength than tin-lead solders. Good wetting. |
Tin-Antimony-Lead |
General purpose. |
Improved mechanical properties over Tin-Lead solders. Can not be used with zinc due to brittle zinc-antimony inter-metallic compounds |
Tin-Lead |
General purpose, and the most widely used solders. |
Good process characteristics and the best traditional range of solders. |
Tin-Silver |
Used for soldering medical or high precision instruments. High temperature applications |
Non-toxic but expensive. Good high temperature properties. |
Tin-Zinc |
Soldering aluminum |
Requires special flux type |
Zinc-Aluminum |
Soldering aluminum |
Requires alumina based flux |