A Stainless Steel Butterfly Control Valve is made from stainless steel, an iron alloy that includes nickel and chromium. This material is known for its durability, resistance to corrosion, rust, abrasion, and shock damage, as well as its ability to withstand high temperatures and pressures. The proportions of nickel and chromium in the alloy can be adjusted to enhance specific features, such as improved corrosion resistance.