What defines a nonferrous metal?

A nonferrous metal is accurately defined as one that does not contain iron. This is a key distinction because nonferrous metals are typically known for their resistance to corrosion and their ability to conduct electricity and heat effectively. Common examples of nonferrous metals include aluminum, copper, lead, and zinc. These characteristics make nonferrous metals valuable in various applications, such as electrical wiring and plumbing.

The understanding of nonferrous metals is crucial for welding practices, particularly in GMAW, where knowing the material properties ensures appropriate techniques and welding settings are applied. For instance, aluminum requires different handling compared to ferrous metals due to its melting point and thermal conductivity. Recognizing the composition of the metal being welded can significantly influence the choice of filler materials and the welding technique used.