Keystone Steel & Wire For over 125 years, Keystone has been a leader in the steel industry. Located in Peoria, Illinois, the facility is one of the largest wire and rod mills in the US. We produce 700,000 tons of steel each year. A major recycler, much of Keystone’s steel is manufactured from reprocessed steelKeystone’s domestic advantage is substantial. It means that every ounce of steel is closely monitored to eliminate impurities and maintain specific alloy formulas. As a result, the process assures consistency every time. And, since our products are 100% American-made, KSW steel is Buy America Compliant.  KSW has made a multi-million dollar investment to our rod and wire mills. This enables us to produce some of the most exacting high carbon and CHQ grade steel and wire products. Finished materials include billet, rod, rebar and industrial wire.  Keystone production practices are nimble and flexible. Therefore, we are capable of offering customized grades of steel to meet individual customer needs quickly and efficiently. For example, Keystone has over 20 steel grades that are classified as 1008 steel. We work closely with our customers to help control inventory lead times while meeting exacting specifications for every pound of steel created.