Title:
THIN STEEL SHEET AND DEOXIDATION TREATMENT METHOD FOR MOLTEN STEEL FOR THIN STEEL SHEET
Document Type and Number:
Japanese Patent JP3714190
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a thin steel sheet which has good surface quality and has no occurrence of surface flaws such as scab flaws and sliver flaws, and a deoxidation treatment method for molten steel for obtaining the same.
SOLUTION: The thin steel sheet has a composition containing, by mass, ≤0.01% C, 0.01 to 0.5% Si, 0.05 to 0.5% Mn, ≤0.1% P, ≤0.01% S, 0.0005 to 0.01% sol.Al, 0.0003 to 0.004% Ca, 0.005 to 0.1% Ti, 0 to 0.03% Nb and 0 to 0.01% B and the balance Fe with impurities and in which Si, soluble Al, Ca, Ti and insoluble Al lie in the ranges shown in the figure 4.
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Inventors:
Fukagawa Shin
Takayuki Nishi
Takayuki Nishi
Application Number:
JP2001146136A
Publication Date:
November 09, 2005
Filing Date:
May 16, 2001
Export Citation:
Assignee:
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
B22D11/00; B22D11/108; B22D11/113; C22C38/00; (IPC1-7): C22C38/00; B22D11/00; B22D11/108; B22D11/113
Domestic Patent References:
| JP49021207B1 | ||||
| JP11302772A | ||||
| JP11343516A |
Attorney, Agent or Firm:
Mikiji Sugioka
Terutada Hogami
Michio Mori
Terutada Hogami
Michio Mori
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