Pollution Prevention of Metal Casting Industry

The metal casting industry makes parts from molten metal according to an end-user’s specifications. Facilities are typically categorized as casting either ferrous or nonferrous products. The metal casting industry described in this notebook is categorized by the Office of Management and Budget (OMB) under Standard Industrial Classification (SIC) codes 332 Iron and Steel Foundries and 336 Nonferrous Foundries (Castings). The die casting industry is contained within the SIC 336 category since die casting establishments primarily cast nonferrous metals. OMB is in the process of changing the SIC code system to a system based on similar production processes called the North American Industrial Classification System (NAICS). (In the NAIC system, iron and steel foundries, nonferrous foundries, and die casters are all classified as NAIC 3315.)