Metal on the rack, ready to cut
Mild Steel (A36 / 1008): Strong, weldable, low cost. The default for brackets and plates.
Stainless Steel 304: Corrosion resistant. Food, marine, and outdoor parts.
Aluminum 5052: Light, bendable, and rust free.
Galvanized Steel: Zinc coated steel for outdoor and ductwork parts.
Brass 260: Gold tone, decorative, easy to polish.
Copper 110: Best electrical and heat conductor. Bus bars and art.