Solder bar is a form of solder that is cast into a solid & compact bar, that is used for soldering of electronics or joining of metals. Solder bar (also called bar solder) is available into types of composition, depending on whether it contains lead or not, divided into tin lead solder bar and lead free solder bar.
It is also known as leaded solder bar, consisting of tin and lead at different composition. The tin percentage measuring by weight is ranging from 5% up to 63%, while the remaining will be lead. It's the traditional solder alloy and a widely used bar solder. In XF Solder family we have below alloys:
Solder Bar 63/37 (Sn63Pb37)
Solder Bar 60/40 (Sn60Pb40)
Solder Bar 50/50 (Sn50Pb50)
Solder Bar 40/60 (Sn40Pb60)
Solder Bar 30/70 (Sn30Pb70)
Solder Bar 20/80 (Sn20Pb80)
Solder Bar 10/90 (Sn10Pb90)
Solder Bar 5/95 (Sn5Pb95)
This type of solder bar or bar solder, is majorly consisted of tin, silver, copper at different composition, there's no lead inside this type of bar solder. The lead free solder bar complies with ROHS standard and can be used in a lot of applications that require lead free components. Below are the compositions that we produce:
SAC305 Solder Wire (Sn96.5Ag3.0Cu0.5)
SAC0307 Solder Wire (Sn99Ag0.3Cu0.7)
SAC07 Solder Wire (Sn99.3Cu0.7)
Solder bar or bar solder is used for electronics soldering by dip soldering or wave soldering, or used for joining of copper roofing, plumbings (copper pipes and fittings) and stained glass etc. In some applications, such as home appliances that require compliance of ROHS, or soldering of portable water pipes, the use of tin lead solder bar is prohibited, only lead free bar solder is allowed to be used.