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Premium Solder Bars from China Factory - Reliable Suppliers for PCB and Wave Soldering Solutions
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.
Excellent Fluidity
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.
Oxidation Resistance
Engineered with enhanced oxidation resistance, which minimizes dross formation, lowers material waste, and ensures stable solder quality throughout extended production runs, reducing operational costs.
Environmental Compliance
Available in multiple lead-free alloys, fully compliant with European RoHS and REACH directives. Leaded alloys are also provided for specialized 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.
Product 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
Frequently Asked Questions
What materials are QLG solder bars made from?
QLG solder bars are manufactured from high-quality, virgin tin combined with carefully controlled alloy compositions to ensure consistent performance and reliability.
Are these solder bars compliant with environmental standards?
Yes, QLG offers multiple lead-free alloy options that are fully compliant with European RoHS and REACH directives.
Do you offer leaded options for traditional manufacturing?
Yes, we provide leaded alloys (such as Sn63Pb37, Sn60Pb40, etc.) that maintain excellent stability and soldering properties for specialized traditional environments.
How does the oxidation resistance benefit production?
The enhanced oxidation resistance minimizes dross formation during extended production runs. This lowers material waste and ensures stable solder quality, reducing overall operational costs.
What melting temperatures do your solder alloys support?
We support a wide range of melting temperatures depending on the alloy composition, starting from 183°C for leaded options up to 310°C for lead-free options like Sn97Cu3.