... choice of alloys and design flexibility for internal and external configurations is seen as a plus.4.Design enhancements: ... investment casting. Metals PouredMelting CapacityTypical Alloys PouredAluminum1,500 lbs.All aluminum alloys including 319, 355, 356, 357, 359, 380, ... iron,ductile iron,malleable iron,stainless steel, carbon steel,aluminum,brass etc.standardDIN, ASTM, BS, JIS etc.processsand ...