Metal caskets can be made from a range of metal materials, including Bronze, Copper, Stainless Steel and Carbon Steel. Caskets made from Bronze and Copper are non-rusting, so they are thought to have the highest quality and give the most upmarket image. Caskets made from Stainless Steel are rust-resistant and offer exceptional value compared to Bronze and Copper caskets. Carbon Steel is the type of metal used in automobile manufacturing and is readily available but can also be impacted significantly by the elements. Caskets made from Carbon Steel are available in two grades (from thickest to thinnest): 18 gauge and 20 gauge.