Description
Leaded Solder Wire by National Products is a high-quality tin-lead alloy solder designed for precision electronic assembly, repair, and industrial soldering applications. Engineered with controlled metallurgy and consistent wire diameter, it ensures smooth melting, excellent wetting, and strong metallurgical bonding.
Available in standard alloy compositions such as Sn60/Pb40 and Sn63/Pb37, this solder wire offers a stable melting range, superior flow characteristics, and minimal oxidation during soldering. It produces bright, reliable joints with excellent electrical conductivity and mechanical strength.
Manufactured under strict quality control processes, National Products’ Leaded Solder Wire delivers dependable performance for PCB assembly, maintenance, and electrical manufacturing environments.
Solder Wire of Various Grades
| Element | 60/37.5/2.5 Sn/Pb/Ag | 63/37 | 60/40 | 50/50 | 40/60 | 20/80 | 15/85 | 10/90 |
|---|---|---|---|---|---|---|---|---|
| Sb** | 0.12-0.2 | 0.12-0.5 | 0.12-0.5 | 0.12-0.5 | 0.12-0.5 | 0.12-0.5 | 0.12-0.5 | 0.12-0.5 |
| Pb | Rest | Rest | Rest | Rest | Rest | Rest | Rest | Rest |
| Cu | 0.12-0.2 | 0.12-0.5 | 0.12-0.5 | 0.12-0.5 | 0.12-0.5 | 0.12-0.5 | 0.12-0.5 | 0.12-0.5 |
| Sn | 59.5-60.5 | 62.5-63.5 | 59.5-60.5 | 49.5-50.5 | 39.5-40.5 | 19.5-20.5 | 14.5-15.5 | 9.5-10.5 |
| Ag | 2.5±0.2 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 |
| Fe | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 |
| As | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
| Bi | 0.07 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
| Al | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 |
| Cd | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 |
| Zn | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 |
| P | 0.003 | 0.003 | 0.003 | 0.003 | 0.003 | 0.003 | 0.003 | 0.003 |
| Solidus temp. | 179°C | 183°C | 183°C | 183°C | 183°C | 183°C | 225°C | 275°C |
| Liquidus temp | – | 183°C | 191°C | 216°C | 183°C | 277°C | 290°C | 302°C |
Why Choose Leaded Solder Wire – National Products?
Excellent Wetting & Flow Properties
Ensures quick spread and strong adhesion to copper and plated surfaces.
Stable Alloy Composition
Precise tin-lead ratio guarantees predictable melting behavior.
Bright & Smooth Joint Finish
Produces clean, shiny solder joints with reduced defects.
High Electrical Conductivity
Ensures reliable signal and power transmission.
Low Oxidation During Soldering
Minimizes residue and improves overall efficiency.
Consistent Wire Diameter
Uniform thickness for controlled solder feed and accurate application.
Trusted Industrial Performance
Used by PCB manufacturers, repair technicians, and electrical assembly units.
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