Invention Grant
- Patent Title: Method of producing a hot-rolled high-strength steel with excellent stretch-flange formability and edge fatigue performance
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Application No.: US16331324Application Date: 2017-09-22
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Publication No.: US11242579B2Publication Date: 2022-02-08
- Inventor: Rolf Arjan Rijkenberg , Maxim Peter Aarnts , Paul Joseph Bellina , Andrew Paul Vass
- Applicant: TATA STEEL IJMUIDEN B.V.
- Applicant Address: NL Velsen-Noord
- Assignee: TATA STEEL IJMUIDEN B.V.
- Current Assignee: TATA STEEL IJMUIDEN B.V.
- Current Assignee Address: NL Velsen-Noord
- Agency: Vorys, Sater, Seymour and Pease LLP
- Priority: EP16190061 20160922
- International Application: PCT/EP2017/074072 WO 20170922
- International Announcement: WO2018/055098 WO 20180329
- Main IPC: C21D9/52
- IPC: C21D9/52 ; C21D9/46 ; C21D8/02 ; C21D6/00 ; C22C38/12 ; C22C38/04 ; C22C38/02 ; C22C38/00 ; C22C38/06
Abstract:
A method to manufacture a hot-rolled high-strength steel sheet or strip with tensile strength of 570 MPa or higher, or preferably 780 MPa or higher, or even more preferably 980 MPa or higher, with an excellent combination of tensile elongation, SFF, and PEF strength.
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