Process for manufacture of precision interstitial-free steel tubes

US6290788A · kind A · utility

Assignee

• Mannesmann AG · DE

Inventors

• Ronald Claus · Dresden, DE
• Jurgen Wiete · Melle, DE
• Rüdiger Hahn · Soest, DE
• Stefan Meimeth · Hamm, DE

Key dates

• Filing date: Feb 8, 1999
• Grant date: Sep 18, 2001
• Expiry date: Feb 8, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C38/14
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for producing precision steel tubes includes cold forming tube blanks, in particular in a plurality of forming steps, with or without an internal tool. In this process, a tube blank made from interstitial free IF steel is used as the starting material.