This document lists material classes for different pump components according to the American Petroleum Institute (API) 610 8th Edition standard. It shows that components like casings, impellers, shafts, and wear rings can be made from materials ranging from carbon steel to various grades of stainless steel, duplex steel, and super duplex steel depending on the specific material class. Common material grades include A216 Grade WCB carbon steel, A276 Type 316 stainless steel, and A890 Grades 3A and 5A duplex and super duplex steels.