Erie Forge and Steel is a supplier of new and refurbished marine propulsion components for the U.S. Navy's fleet of aircraft carriers, destroyers, submarines, and support ships. The company supports various national defense programs. Erie Forge and Steel is a part of WHEMCO, which also operates WHEMCO Steel Castings, Johnstown Specialty Castings, Lehigh Heavy Forge Corporation, WHEMCO Ohio Foundry and Lehigh Specialty Melting. WHEMCO provides heavy industrial components for clients in the metal, power generation and shipbuilding industries. The company offers melting, casting and forging services. It also provides heat treating and machining services. The company offers mill rolls, slag pots and coiler drums.