Metal treatment – Stock – Ferrous
Reexamination Certificate
2005-06-28
2005-06-28
Yee, Deborah (Department: 1742)
Metal treatment
Stock
Ferrous
Reexamination Certificate
active
06911098
ABSTRACT:
A ferritic stainless steel sheet contains abut 0.01 percent by mass or less of carbon; about 1.0 percent by mass or less of silicon; about 1.5 percent by mass or less of manganese; about 11 to about 23 percent by mass of chromium; about 0.06 percent by mass or less of phosphorous; about 0.03 percent by mass or less of sulfur; about 1.0 percent by mass or less of aluminum; about 0.04 percent by mass or less of nitrogen; about 0.0005 to about 0.01 percent by mass of boron; about 0.3 percent by mass or less of vanadium; about 0.8 percent by mass or less of niobium and/or about 1.0 percent by mass or less of titanium wherein 18≦Nb/(C+N)+2(Ti/(C+N))≦60; and the balance being iron and unavoidable impurities. The average crystal grain diameter is about 40 μm or less and the average surface roughness is about 0.3 μm or less.
REFERENCES:
patent: 5653825 (1997-08-01), Kohno et al.
patent: 6383309 (2002-05-01), Hirata et al.
patent: 2001/0003293 (2001-06-01), Hirata et al.
patent: 0 625 584 (1994-11-01), None
patent: 0 727 502 (1996-08-01), None
patent: 0 758 685 (1997-02-01), None
patent: 0 765 941 (1997-04-01), None
patent: 1 099 773 (2001-05-01), None
patent: 1045641 (1966-10-01), None
patent: 08-109443 (1996-04-01), None
patent: 08-283914 (1996-10-01), None
patent: 09-125208 (1997-05-01), None
patent: 2000-144344 (2000-05-01), None
M.-Y. Huh et al.,Effect of intermediate annealing on texture, formability and ridging of 17%Cr ferritic stainless steel sheet, Material Science & Engineering A, vol. 308, Jun. 1, 2001, pp. 74-87.
Furukimi Osamu
Kato Yasushi
Ozaki Yoshihiro
Yazawa Yoshihiro
DLA Piper Rudnick Gray Cary US LLP
JFE Steel Corporation
Yee Deborah
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