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Solders for Electronics and Electrical Connections
Historically, electrical/electronic joints were accomplished with tin/lead
solders. They were cheap, relatively conductive and easy to work with.
As materials, processes and joint specifications changed, coupled with
the desire for lead-free operations, Kapp developed several new "standard"
solders for electronics - from KappFree's lead-free formulation, to Kapp
Tin-Zinc solders for aluminum to copper connections, to KappZapp7, the new
standard in high stress and vibration audio equipment. Please call
with any questions.
Low Cost Electronic Solders
Kapp Antimonial Tin Solder for Electronics
95Sn/5Sb aka "Antimonial Tin"
Soldering of electrical equipment, joints in copper tubing and cooling
coils for refrigerators. High tin solder used for Electrical/Electronic
joints provides higher electrical conductivity than high lead solders.
Also used where lead may be a hazard - for instance, in contact with
foodstuffs or water potable pipes. Tin solders that contain 5% antimony
(Sb) [or 5% silver (Ag)] are suitable for use at higher temperatures than
tin-lead solders.
Specification: ASTM B32, Grade 95TA
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Physical Properties &
Technical Data |
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Composition |
95%Tin -
5% Antimony |
|
Solidus (°F)/(°C) |
452°F /
234°C |
|
Liquidus(°F)//(°C) |
464°F /
240°C |
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Tensile Strength |
5,900psi* |
|
Shear Strength |
6,000
psi* |
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Elongation |
2% |
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Electrical Conductivity |
11.9
(%IACS) |
Kapp Eutectic Tin-Lead-Silver Solder for Electronics
62Sn/36Pb/2Ag
A very cost-effective eutectic electrical/electronic solder where lead is
permissible. Silver increases strength and vibration resistance of the
joint in higher stress applications.
Specification: ASTM B32, Grade Sn62, QQS571
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Physical Properties &
Technical Data |
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Composition |
62Sn/36Pb/2Ag |
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Solidus (°F)/(°C) |
354°F / 179°C Eutectic |
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Liquidus(°F)//(°C) |
354°F / 179°C |
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Tensile Strength |
21,00psi* |
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Shear Strength |
10,000
psi* |
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Elongation |
2% |
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Electrical Conductivity |
12.2
(%IACS) |
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