BALVER ZINN alloy Sn63Pb37SW
BALVER ZINN alloy Sn63Pb37SW is a leaded solder alloy used in classic electronics manufacturing when working with wave soldering, selective soldering, or dip tinning. It is eutectic, which in practice means that it changes from solid to liquid at one specific temperature. For this alloy, both the solidus and liquidus temperatures are 183 °C.
In daily production, it is primarily the stable melting behavior that makes the alloy easy to control in the process. The recommended working temperature is between 245 and 300 °C, providing a clear process window to work within. The product is supplied as solid wire in diameters from 1.0 mm to 6.0 mm, so it can be selected in a form suitable for the task.
The alloy is specified for standard electronics and industrial electronics, and the manufacturer's documentation also mentions the WBZ BaTiLoy process property. At the same time, it is documented that the product contains lead above 0.1 percent by mass, so it is a leaded alloy that must be handled accordingly.