1 EXHIBIT 23.1 INDEPENDENT AUDITOR'S CONSENT We consent to the incorporation by reference in Registration Statement No. 33-46824 of Quanex Corporation on Form S-8 of our report dated March 28, 1997 appearing in the Annual Report on Form 11-K of the Quanex Corporation Hourly Bargaining Unit Employees Savings Plan for the year ended December 31, 1996. /s/ Deloitte & Touche LLP - --------------------------- DELOITTE & TOUCHE LLP Houston, Texas June 24, 1997