... surface finish of about 125 RMS is common for an investment casting. Metals PouredMelting CapacityTypical Alloys PouredAluminum1,500 lbs.All ... and Copper2,000 lbs.Pure copper and all copper-based alloys including Hi-Con, CL2, CL3, Copper 85-5-5-5 ... , ASTM, BS, JIS etc.processsand casting,resin bonded casting, investment casting(lost wax casting), die casting, pressing & forging.Weight rangeTo 5000kg ...