Jul 03, 2007 (BUSINESS WIRE) -- Reliance Steel & Aluminum Co. ( RS ) announced today that it has completed its purchase of the previously announced acquisition of the outstanding capital stock of Clayton Metals, Inc., headquartered in Wood Dale, Illinois. Terms were not disclosed. Clayton Metals was founded in 1976 and specializes primarily in the processing and distribution of aluminum, stainless steel and red metal flat-rolled products, custom extrusions and aluminum circles through its metals service center locations in Wood Dale, IL; Cerritos, CA; High Point, NC and Parsippany, NJ.