This is a small coil of Soft Solder Wire, LEAD-FREE type 97C – 97% Sn (Tin)/3% Cu (Copper) – 1.0mm diameter and 5 mtres length (approx. 35 grammes). It is a low cost alternative to other lead-free solders which contain silver. It has a melting range of 230-250 degrees centigrade which is slightly higher and wider than many other solders, enabling the joining of wider gaps and/or the ability to create a fillet, – ideal if the joints are less than perfect, of if a decorative fillet is desirable. This grade is suitable for most general engineering metals excluding Aluminium and Titanium. A suitable flux will be required but is not included.