Different metals are used for different types of metal work. Steel is often used for structural applications, aluminum is often used in aircraft construction, and brass is often used in plumbing applications.
Which metal is used for metal work? Metal work is usually done with steel, aluminum, brass, or bronze. Steel is the most common because it is strong and affordable. Aluminum is also common because it is light-weight and doesn't corrode. Brass and bronze are used less often because they are more expensive and tend to corrode over time.