About Us
Solder Bar
Product Overview
Solder bars are available in lead-free and leaded alloys, it is made from high-quality and virgin tin, combined with carefully controlled alloy compositions. This ensures that every batch meets standards and delivers superior soldering performance. QLG solder bars exhibit outstanding wetting performance, allowing solder to spread smoothly and uniformly across component surfaces. This results in strong, reliable, and visually clean solder joints.
QLG solder bars feature excellent fluidity, enabling fast and efficient solder flow during wave soldering and dip processes. This improved flow dynamics help reduce soldering defects such as bridging, icicles, and insufficient coverage. The bars are also engineered with enhanced oxidation resistance, which minimizes dross formation, lowers material waste, and ensures stable solder quality throughout extended production runs. This not only enhances manufacturing efficiency but also reduces operational costs for customers.
QLG solder bars are available in multiple lead-free alloys, fully compliant with European RoHS and REACH directives. For customers with specialized needs, QLG also provides leaded alloys, maintaining excellent stability and soldering properties for traditional manufacturing environments.
Supported by technical expertise and a commitment to continuous improvement, QLG remains a trusted partner for electronics manufacturers seeking high-quality soldering materials. Our solder bars combine technological innovation, environmental responsibility, and superior performance making them the ideal choice for today’s advanced electronic production lines.
products specification
| Alloy | Melting or solidus/liquidus Temperature ℃ |
| Sn99.3Cu0.7 | 227 |
| Sn97Cu3 | 227-310 |
| Sn99Ag0.3Cu0.7 | 217-227 |
| Sn97Ag3 | 221-224 |
| Sn96.5Ag3.5 | 221 |
| Sn96.5Ag3Cu0.5 | 217-220 |
| Sn100 | 232 |
| Sn63Pb37 | 183 |
| Sn60Pb40 | 183-190 |
| Sn50Pb50 | 193-215 |
| Sn45Pb55 | 183-226 |
| Sn40Pb60 | 183-238 |
| Sn35Pb65 | 183-245 |
| Sn30Pb70 | 183-255 |
| Sn20Pb80 | 183-280 |
detail pictures
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