Which nonferrous metal is commonly used in welding?

Aluminum is commonly used in welding due to its favorable properties, which include its lightweight, resistance to corrosion, and good thermal and electrical conductivity. These characteristics make aluminum an ideal choice for a variety of applications, especially in industries such as aerospace, automotive, and marine.

In welding processes, aluminum can be effectively joined using various techniques, including Gas Metal Arc Welding (GMAW), where it is essential to maintain proper heat management due to its high thermal conductivity. Aluminum welds are known for their strength and aesthetic finish, making it popular in structural and decorative applications.

While both iron and steel are ferrous metals widely used in welding, they do not fall under the category of nonferrous metals. Copper alloys are also used in welding but are less commonly employed compared to aluminum, particularly in broader industrial applications. Therefore, aluminum stands out as the most recognized nonferrous metal in the welding field.