Copper alloy welding materials are typically classified based on their primary alloying elements to match or complement the properties of the base material being welded (such as colour, strength, corrosion resistance, and electrical conductivity). The following diagram clearly illustrates the main classifications and their relationships:

ERCuSn-C (also known as S213, SCu5210, etc.) is a phosphor bronze welding wire widely used in welding and overlaying specific metals due to its excellent
performance. Below, I will provide a detailed introduction to the characteristics, applications, handling tips, and relevant standards of ERCuSn-C welding wire.