Steel strip having a low Si content

US9593400B2 · kind B2 · utility

Assignee

• TATA STEEL IJMUIDEN B.V. · NL

Inventors

• Egbert Jansen · Purmerend, NL
• Edward Anton Frederik Span · Nieuw-Vennep, NL
• Richard Mostert · Heemskerk, NL
• Theo Arnold Kop · Haarlem, NL

Key dates

• Filing date: Apr 5, 2013
• Grant date: Mar 14, 2017
• Expiry date: May 23, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12799
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A dual phase or complex phase steel strip showing no tigerstripes. The steel strip includes, in mass percent, the following elements: C 0.08-0.11%; Mn 1.70-2.20%; Si at most 0.1%; Cr 0.40-0.70%; Mo at most 0.3%; Ni at most 1.0%, Al 0.01-1.50%; Nb at most 0.07%; P equal to or more than 0.005%; N equal to or less than 0.015%; Ti equal to or less than 0.1%; V equal to or less than 0.1%; B equal to or less than 0.01%; wherein the sum of Cr, Mo and Ni is at least 0.5%; the balance being Fe and inevitable impurities.