reliance steel & aluminum MacBethForm4_62007

This document is a filing with the United States Securities and Exchange Commission reporting changes in beneficial ownership of securities by James P. MacBeth, a senior vice president of Reliance Steel & Aluminum Co. It reports that on May 10, 2007, MacBeth acquired 86 shares of Reliance Steel & Aluminum common stock through the company's Employee Stock Ownership Plan trust, increasing his total indirect ownership to 10,736 shares. It also discloses that he directly owns 58,159 shares of Reliance Steel & Aluminum common stock. No other transactions or holdings of derivative securities are reported.