Method of production of tin containing non grain-oriented silicon steel sheet, steel sheet obtained and use thereof

US11566296B2 · kind B2 · utility

Assignee

• ArcelorMittal · LI

Inventors

• Elke Leunis · Kalken, BE
• Tom Van De Putte · Sinaai, BE
• Sigrid Jacobs · Merelbeke, BE
• Wahib Saikaly · Woluwe-Saint-Pierre - Sint-Pieters-Woluwe, BE

Key dates

• Filing date: Oct 20, 2015
• Grant date: Jan 31, 2023
• Expiry date: Feb 9, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C21D2211/005
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method of production non grain-oriented Fe—Si steel sheet is provided. The method includes the steps of melting a steel composition that contains in weight percentage: C≤0.006, 2.0≤Si≤5.0, 0.1≤Al≤3.0, 0.1≤Mn≤3.0, N≤0.006, 0.04≤Sn≤0.2, S≤0.005, P≤0.2, Ti≤0.01, the balance being Fe and other inevitable impurities, casting said melt into a slab, reheating said slab, hot rolling said slab, coiling said hot rolled steel, optionally annealing the hot rolled steel, cold rolling, annealing and cooling the cold rolled steel down to room temperature.