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Premium Solder Bars from China Suppliers | Quality Solder Solutions by Leading Factory

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QLG, a leading supplier and factory based in China, provides an extensive selection of premium solder bars designed to meet the rigorous standards of the electronics industry. With decades of manufacturing expertise and a commitment to strict quality control, our solder bars ensure exceptional reliability, consistency, and performance for a wide range of applications, including PCB assembly, wave soldering, dip soldering, and component manufacturing.

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Sn99.3Cu0.7, Sn97Cu3, Sn99Ag0.3Cu0.7, Sn97Ag3, Sn96.5Ag3.5, Sn96.5Ag3Cu0.5, Sn100, Sn63Pb37, Sn60Pb40, Sn50Pb50, Sn45Pb55, Sn40Pb60, Sn35Pb65, Sn30Pb70, Sn20Pb80

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    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.

    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 (FAQ)
    What types of alloys are QLG solder bars available in?
    QLG solder bars are available in both lead-free and leaded alloys. They are manufactured using high-quality, virgin tin combined with carefully controlled alloy compositions to ensure consistent performance.
    Are QLG lead-free solder bars compliant with global environmental standards?
    Yes, all QLG lead-free solder bars are fully compliant with European RoHS and REACH directives, making them ideal for environmentally responsible electronics manufacturing.
    How do QLG solder bars help in reducing production defects?
    Due to their excellent fluidity and optimized flow dynamics, QLG solder bars significantly reduce common wave and dip soldering defects such as bridging, icicles, and insufficient coverage.
    How does the oxidation resistance of QLG solder bars benefit the assembly line?
    The enhanced oxidation resistance minimizes dross formation during extended production runs. This directly translates to lower material waste, stable solder quality, and reduced operational costs for manufacturers.
    Can QLG provide customized alloy compositions?
    Yes. While QLG offers standard lead-free and leaded alloys, we also cater to customers with specialized manufacturing needs, providing excellent stability and tailored properties for traditional and advanced processes.