Title:
耐つまとび性に著しく優れたほうろう用鋼板およびその製造方法
Document Type and Number:
Japanese Patent JP4959709
Kind Code:
B2
Abstract:
The present invention provides a non-aging enameling steel sheet having excellent fishscale resistance characteristics that is suitable for one-coat enameling and a method of producing the same. The enameling steel sheet comprises, in mass%, C: 0.010% or less, Mn: 0.03% to 1.30%, Si: 0.100% or less, Al: 0.010% or less, N: 0.0055% or less, P: 0.035% or less, S: 0.08% or less, O: 0.005% to 0.085%, Nb: 0.055% to 0.250%, and the balance of Fe and unavoidable impurities, in which steel sheet preferably an Fe-Nb-Mn system composite oxide is present, a distribution of Nb mass% concentrations is present in the composite oxide, and the ratio of Nb mass% concentration of a high-concentration portion (Nb max%) to Nb mass% concentration of a low-concentration portion (Nb min%) is Nb max% / Nb min% ¥ 1.2.
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Inventors:
Hidekuni Murakami
Satoshi Nishimura
Satoshi Nishimura
Application Number:
JP2008536304A
Publication Date:
June 27, 2012
Filing Date:
August 13, 2007
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
C22C38/00; C21C7/00; C21D9/46; C22C38/12; C22C38/60; C23D5/00
Domestic Patent References:
| JP2005510624A |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Nakamura Asayuki
Nagasaka Tomoyasu
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Nakamura Asayuki
Nagasaka Tomoyasu