... 125 RMS is common for an investment casting. Metals PouredMelting CapacityTypical Alloys PouredAluminum1,500 lbs.All aluminum alloys including 319, 355, 356, 357, 359 ... zinc alloys Material Grey iron,ductile iron,malleable iron,stainless steel, carbon steel,aluminum,brass etc.standardDIN, ASTM, BS, JIS etc.processsand casting ...