Stainless steel cookware is made from a metal alloy that contains iron, chromium, and nickel. Chromium provides rust and corrosion resistance, while nickel enhances durability and shine. High-quality cookware often features a multi-ply construction, with aluminum or copper cores sandwiched between layers of stainless steel for better heat distribution. This construction makes stainless steel cookware strong, versatile, and suitable for various cooking methods.