公开(公告)号：EP2245203B1

公开(公告)日：2018-10-31

申请号：EP08872296.2

申请日：2008-12-03

申请人： Aperam Stainless France

发明人： FROHLICH, Thomas ,  MITHIEUX, Jean-Denis

IPC分类号： C22C38/40 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C21D8/04 ,  C21D9/48

CPC分类号： C21D9/48 ,  C21D8/04 ,  C22C38/02 ,  C22C38/04 ,  C22C38/24 ,  C22C38/40 ,  C22C38/58

公开(公告)号：EP2480698A1

公开(公告)日：2012-08-01

申请号：EP10773369.3

申请日：2010-09-17

申请人： Aperam

发明人： CHASSAGNE, Francis ,  BRUYERE, Blandine ,  MITHIEUX, Jean-Denis

IPC分类号： C22C38/18 ,  C21D9/46 ,  B21D3/02 ,  C21D6/00 ,  C21D8/02

CPC分类号： C22C38/18 ,  B21B3/02 ,  C21D6/002 ,  C21D8/0226 ,  C21D9/46 ,  C21D2211/005

摘要： The invention relates to a hot-rolled, or hot-rolled and annealed, metal sheet which is made of ferritic stainless steel manufactured by a method including at least two asymmetrical hot-rolling steps, the steel including, by weight percent: 0.001% ≤ C ≤ 0.08%, N ≤ 0.08%, 0.02% ≤ Mn ≤ 1.1 %, Si ≤ 1.1 %, P ≤ 0.04%, S ≤ 0.015%, 10.5% ≤ Cr ≤ 25%, Mo ≤ 3%, Cu ≤ 1%, Ti ≤1 %, Zr ≤ 1%, Nb ≤ 1%, the remainder of the composition consisting of iron and unavoidable impurities resulting from the production process. The metal sheet has a mean grain size, at the mid-thickness in the rolling direction d
ac , which is less than or equal to 50 μm.

公开(公告)号：EP3891316A1

公开(公告)日：2021-10-13

申请号：EP18840036.0

申请日：2018-12-06

申请人： Aperam

发明人： CHASSAGNE, Francis ,  PARRENS, Coralie ,  MITHIEUX, Jean-Denis

IPC分类号： C22C38/00 ,  C22C38/38 ,  C21D1/18 ,  C21B5/00