At National Products (NP Solders), we manufacture high-performance solder wire engineered for flawless electrical conductivity, strong mechanical bonding, and long-term reliability.
Designed for PCB assembly, electronic repairs, industrial soldering, and automated production lines, our solder wire ensures clean joints with minimal defects and superior wetting performance.
| 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 NP Solder Wire?
High-purity raw materials
Excellent wetting & flow characteristics
Low spattering & smooth melting
Uniform alloy composition
Strong mechanical bonding
Non-corrosive flux options available
RoHS compliant
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