公开(公告)号：US09718125B2

公开(公告)日：2017-08-01

申请号：US14513606

申请日：2014-10-14

Applicant: ARCELORMITTAL FRANCE ,  Laure Cala

Inventor： Frederic Bonnet ,  Olivier Bouaziz ,  Jean-Claude Chevallot

IPC: C22C38/02 ,  C22C38/04 ,  C22C38/14 ,  C22C38/28 ,  C22C38/32 ,  C22C38/50 ,  C22C38/54 ,  C21D7/00 ,  C21D7/02 ,  C21D7/13 ,  B22D25/06 ,  B32B15/01 ,  B23P17/04 ,  C22C38/06 ,  B22D11/00 ,  C22C38/00 ,  B22D11/06 ,  C21D8/02

CPC classification number: B22D25/06 ,  B22D11/001 ,  B22D11/0622 ,  B23P17/04 ,  B32B15/011 ,  C21D7/00 ,  C21D8/021 ,  C21D8/0215 ,  C21D8/0247 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  Y10T428/12965

Abstract: The invention relates to a steel plate, the chemical composition of which comprises, the contents being expressed by weight: 0.010%≦C≦0.20%, 0.06%≦Mn≦3%, Si≦1.5%, 0.005%≦Al≦1.5%, S≦0.030%, P≦0.040%, 2.5%≦Ti≦7.2%, (0.45×Ti)−0.35%≦B≦(0.45×Ti)+0.70%, and optionally one or more elements chosen from: Ni≦1%, Mo≦1%, Cr≦3%, Nb≦0.1%, V≦0.1%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting.

公开(公告)号：US10702916B2

公开(公告)日：2020-07-07

申请号：US15598951

申请日：2017-05-18

Applicant: ArcelorMittal France

Inventor： Frederic Bonnet ,  Olivier Bouaziz ,  Jean-Claude Chevallot

IPC: C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C21D8/02 ,  C21D7/00 ,  B22D25/06 ,  B32B15/01 ,  B23P17/04 ,  C22C38/14 ,  B22D11/00 ,  C22C38/00 ,  B22D11/06

Abstract: A steel plate, the chemical composition of which includes, the contents being expressed by weight: 0.010%≤C≤0.20%, 0.06%≤Mn≤3%, Si≤1.5%, 0.005%≤Al≤1.5%, S≤0.030%, P≤0.040%, 2.5%≤Ti≤7.2%, (0.45×Ti)−0.35%≤B≤(0.45×Ti)+0.70%, and optionally one or more elements chosen from: Ni≤1%, Mo≤1%, Cr≤31, Nb≤0.1%, V≤0.1%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting.