Profile: Salem Specialty Ball Co., Inc. is a supplier of industrial grade balls. Our industrial grade balls are used in bearings, pumps, valves and other commercial applications. Our ball product includes chrome steel. aluminum, stainless steel, brass and plastic balls. Our aluminum balls are light and exhibit heat & electrical conductivity. Our brass balls offer resistance to the corrosion caused by ambient air and sea water. Our 440 stainless steel balls are a martenistic-type stainless steel which is used in steel ball bearing applications that require hardness, dimensional stability, corrosion resistance and toughness. It is also used for corrosion-resistant ball and check valves. Our plastic balls are used in the construction of office furniture and medical equipment .