Die Casting manufacturers CHR provides high quality die-casting components produced using range of materials including aluminium and zinc alloys. We also perform necessary secondary operations on the die-cast parts such as finish machining, surface treatment etc. Overview Die casting is a metal casting process characterized by forcing molten metal under high pressure into the cavity. The cavity is made using two hardened tool steel molds that have been processed into a certain shape and work in a similar way to injection molds. Most die castings are made of non-ferrous metals, especially zinc, copper, aluminum, magnesium, lead, tin and tin-based alloys.