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 steel. The metal is melted, purified, refined and poured on site. Keystone’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.