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公开(公告)号:US11118252B2
公开(公告)日:2021-09-14
申请号:US17043283
申请日:2018-03-30
发明人: Kohichi Sano , Hiroyuki Kawata , Yuji Yamaguchi , Satoshi Uchida , Yoshinori Imai , Riki Okamoto
IPC分类号: C22C38/60 , C22C38/58 , C22C38/48 , C22C38/44 , C22C38/14 , C22C38/12 , C22C38/16 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C22C38/08 , B32B15/01 , C23C2/28 , C23C2/40 , C23C2/06 , C21D9/46 , C21D8/02 , C21D6/00 , C21D1/76 , C22C38/54 , C22C38/50 , C22C38/46 , C22C38/42 , C22C38/20 , C22C38/24 , C22C38/28 , C22C38/38 , B32B15/04 , C22C38/22 , C22C38/26 , C22C38/18 , C22C38/40 , C22C38/34 , C22C38/32 , B32B15/18 , C23C30/00 , C23C28/02 , C23C2/26 , C23C2/02
摘要: A steel sheet includes a hot-dip galvanized layer or a galvannealed layer on a surface of the steel sheet, the steel sheet including: in mass %, C: 0.06% or more and 0.22% or less; Si: 0.50% or more and 2.00% or less; Mn: 1.50% or more and 2.80% or less; Al: 0.02% or more and 1.00% or less; P: 0.001% or more and 0.100% or less; S: 0.0005% or more and 0.0100% or less; N: 0.0005% or more and 0.0100% or less; and a balance: Fe and impurities.