... method: aluminum, brass, bronze, carbon steel, stainless steel, and irons both gray and ductile to name a few.Casting weight ... to the cast material.Cast letters, numbers and logos are possible with sand castings. Production ... need to be made of Aluminum, Brass, Bronze, Steel Alloys, Ductile Iron, Grey Iron & Zinc. Typically ... is completed.Process Chart: Precision Stainless Steel Investment Casting Parts