An ASTM A351 CF8M Ball Control Valve is a valve designed for regulating the flow of liquids, gases, or vapors in a piping system. It is made from ASTM A351 CF8M stainless steel, which is a molybdenum-bearing modification of CF8 austenitic steel. This material is equivalent to wrought AISI 316 stainless steel and offers enhanced general corrosion resistance and improved resistance to pitting caused by chlorides due to the presence of molybdenum.