This technique is more metal efficient than traditional pouring because less material solidifies in the gating system. Due to its extreme versatility, accuracy and production value, investment casting is a highly touted way of producing a wide range of metal parts and components. Production runs in the range of 50 — 10 million are not unusual. In other projects Wikimedia Commons. Many materials are suitable for investment casting; examples are stainless steel alloys, brass, aluminium, carbon steel and glass. Precision investment castings can achieve exceptional accuracy for products both small and large, in a wide range of materials.