Non-ferrous and Stainless steel sand castings. Gamma Foundries produces aluminum, copper base alloys and now we are also prod ... ucing Stainless steel castings from ounces to 3500 lbs for a wide variety of manufactures. We can produce one offs or thousands. Gamma can help you to go from concept to production quickly and economically. The foundry pours over 40 alloys including no-lead bronzes. We have manual molding plus Hunter and Sinto automatic machines. Gamma also has a no-bake molding operation for larger casting up to 3500 in bronze or 1200 lbs in aluminum. We specialize in pressure tight applications read more