发明授权
- 专利标题: Ferritic stainless steel sheet excellent in oxidation resistance
- 专利标题(中): 铁素体不锈钢板耐氧化性优良
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申请号: US13583700申请日: 2011-03-11
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公开(公告)号: US09243306B2公开(公告)日: 2016-01-26
- 发明人: Norihiro Kanno , Yoshiharu Inoue , Junichi Hamada
- 申请人: Norihiro Kanno , Yoshiharu Inoue , Junichi Hamada
- 申请人地址: JP Tokyo
- 专利权人: NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION
- 当前专利权人: NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION
- 当前专利权人地址: JP Tokyo
- 代理机构: Kenyon & Kenyon LLP
- 优先权: JP2010-054796 20100311; JP2010-265015 20101129
- 国际申请: PCT/JP2011/056480 WO 20110311
- 国际公布: WO2011/111871 WO 20110915
- 主分类号: C22C38/22
- IPC分类号: C22C38/22 ; C22C38/26 ; C22C38/20 ; C21D9/46 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/28 ; C22C38/32 ; C21D6/00 ; C22C38/06
摘要:
Ferritic stainless steel sheet which has a high oxidation resistance and scale spallation resistance even at a high temperature near 1000° C., characterized by containing C: 0.020% or less, N: 0.020% or less, Si: over 0.10 to 0.35%, Mn: 0.10 to 0.60%, Cr: 16.5 to 20.0%, Nb: 0.30 to 0.80%, Mo: over 2.50 to 3.50%, and Cu: 1.00 to 2.50%, having an amount of increase of oxidation after a continuous oxidation test in the air at 1000° C. for 200 hours of 4.0 mg/cm2 or less, and having an amount of scale spallation of 1.0 mg/cm2 or less.
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