Maynard Steel Steel Foundry, Foundry, castings, steel castings, heat treating, heat treated, pit molding, pit molded, Steel Casting, Sand Casting, Steel Foundry, ASTM A-148, ASTM Standard, Stainless Steel, Low Carbon Steel, Machined Castings, Large Steel Castings, Green Sand, Molding Green Sand, Air Set Molding, Pepset Molding, Dry Sand Molding, MIL Spec Steel Castings, Armor Castings, MIL Spec Certified, Heat Treated Steel Castings, Quenched Steel Castings Maynard Steel Foundry has been manufacturing steel castings since 1913 and can handle sizes from 25 pounds to over 65000 pounds,. Call 414-385-6500 for a quotation on your parts.