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Bar Solder for Industrial Soldering

Solder bar is an alloy of Solder cast or extruded into ingot, bar or stick form for melting into Solder Pots or seam soldering.  The most common industrial solder alloy 50 50 bar solder contains 50% Tin, 50% Lead and has a melting range of 361-413°F.  Above 413F it is completely liquid, below 361 it becomes solid and in-between it is pasty.  Other leaded alloys used for assembling industrial components include 60/40 Tin/Lead, 40/60 Tin/Lead and the high temperature solder 10/90 containing 90% lead.

Solder bar melted into solder pots can be a faster, more automated method of soldering than hand-soldering with solder wire. Small sticks of solder can be used to seam-solder sheet metal components. 

WHICH SOLDER ALLOY SHOULD I USE ?

Lead-bearing (leaded) solder alloys contain mostly Tin & Lead.  Each solder alloy (blend) has a different melting point and different price point as Tin costs nine to ten times more than lead.  Choose the solder alloy that has the best combination of performance and price point for your application.

For sheet metal components such as roofing and HVAC parts the most common solder alloy used is 50/50.  Radiators and heat exchangers have historically used 40/60 solder alloy.

For the assembly of some electrical components such as transformers and coils it is preferable to use 60/40 solder as Tin is a better conductor of electricity.  Components needing a higher melting point solder for high heat applications such as motor armatures should consider using 10/90 high temp alloy.

If lead content is an issue for employee safety or customer requirements consider using one of our lead-free solder bar alloys as a replacement for lead.

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