Key Metals - Chicago, IL Your source for tool steel, carbon steel, alloy, aluminum, stainless, and brass prducts. Located at 3533 W Columbus Ave. Call 773-778-2977 or Fax 773-778-3310. Metal Supplier / Distributor Chicago Tool Steel, Carbon Steel, Aluminum, Stainless Steel, Alloy Steel, Free Machining, 1018, 12L14, 6061, T303, T304, T316, 4140 Prehard, 4140 HT, Freemax 15, FM15, A2, D2, M2, S7, O1, PGFS, Drill Rod, G&P Stressproof Shaft
