Process for producing reinforcing steel in the form of rods or rod wire

US4594113A · kind A · utility

Assignee

• Von Roll, Inc. · CH

Inventors

• Emil Elsner · Baden-Baden, DE
• Horst Brehmer · Gerlafingen, CH

Key dates

• Filing date: May 28, 1985
• Grant date: Jun 10, 1986
• Expiry date: May 28, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C21D8/08
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

For the production of a reinforcing steel with a higher yield point and good weldability and toughness, microalloying elements are alloyed with the steel and their proportion represents 0.02 and 0.06% vanadium and 0.01 to 0.02% nitrogen, said proportions not being sufficient for achieving a higher yield point of at least 450 N/mm.sup.2. However, this is reached if the rolling stock undergoes controlled, but relatively limited cooling during or after rolling, in such a way that the compensating temperature of the steel reaches at least 700.degree. C. Due to the fact that the microalloying elements are only alloyed in small quantities and only relatively small water quantities are required, reinforcing steel can be economically produced. In addition, the process permits coiling in the case of wire rolling and can also be used on other rolled steel products.