What is the melting point of lead-free solder wire? Understand the melting point comparison of each model with one table

Solder wire is an important soldering material for connecting electronic components to PCB circuit boards. Due to the different proportions of metals such as tin, silver, copper, bismuth, and antimony in tin alloy wires of different compositions, their melting point ranges also vary significantly. For this reason, many purchasers and soldering engineers often ask when choosing soldering materials: What is the melting point of lead-free solder wire? What should the temperature of the solder wire be set? What is the melting point of SAC305? What are the differences between different types of solder wires? Now, Dongguan SINGWAY Solder Wire will answer all your questions one by one.

Comparison of melting points of lead-free solder wire The melting point of lead-free solder wire is usually between 217℃ and 230℃, while the high-temperature solder wire used in secondary reflow soldering fields can have a melting point of over 260℃. For thermal sensitive electronic components, low-temperature solder wire at around 138℃ can be selected. There are various types of solder wires. To have a clearer understanding of the differences in the melting points of lead-free solder wires, you can refer to the following lead-free solder wire melting point comparison table to clearly understand the melting points of different types of solder wires.

Dongguan SINGWAY Metal Products Co., Ltd. has been dedicated to the soldering field for over 10 years. It offers a wide variety of soldering wires, covering low-temperature, medium-temperature, high-temperature and other non-copper melting point ranges. The flux content can be adjusted according to scenarios such as automatic soldering and manual soldering iron soldering to reasonably match lead-free soldering wires that are easy and easy to solder. It should be noted that high-quality lead-free solder wire not only needs to meet the melting point requirements, but also must ensure: uniform wire diameter, less prone to core breakage, stable flux filling, fast soldering speed, bright and full solder joints for easy soldering, and compliance with RoHS and REACH environmental protection standards, etc. In conclusion, lead-free solder wires with different tin alloy ratios have different melting points. Choosing a suitable lead-free tin wire can not only improve soldering efficiency but also enhance product reliability, reduce rework and production costs. When selecting solder wire, one should not only focus on the melting point but also consider the product structure, soldering process, and operating environment.