Low carbon resulfurized free-machining steel having high...

Details Low carbon resulfurized free-machining steel having high... Low carbon resulfurized free-machining steel having high...

2006-09-07

2011-11-08

Yee, Deborah (Department: 1733)

Alloys or metallic compositions

Ferrous

Over 0.05 percent sulfur, over 0.04 percent phosphorus or...

C420S088000

Reexamination Certificate

active

08052925

ABSTRACT:
A low carbon resulfurized free-machining steel having a high machinability is provided. This steel comprises 0.02 to 0.15% by mass of C, up to 0.004% by mass (more than 0% by mass) of Si, 0.6 to 3% by mass of Mn, 0.02 to 0.2% by mass of P, 0.2 to 1% by mass of S, up to 0.005% by mass (more than 0%) of Al, 0.008 to 0.04% by mass of O, and 0.002 to 0.03% by mass of N; and the average oxygen concentration in the MnS in the steel is at least 0.4% by mass.

REFERENCES:
patent: 6635129 (2003-10-01), Nagahama et al.
patent: 2007/0044867 (2007-03-01), Yaguchi et al.
patent: 0 838 534 (1998-04-01), None
patent: 1 580 287 (2005-09-01), None
patent: 6-100978 (1994-04-01), None
patent: 07 173574 (1995-07-01), None
patent: 7-252588 (1995-10-01), None
patent: 09 031522 (1997-02-01), None
patent: 09 071838 (1997-03-01), None
patent: 2671086 (1997-10-01), None
patent: 2740982 (1998-04-01), None
patent: 10 158781 (1998-06-01), None
patent: 2922105 (1999-07-01), None
patent: 2000 319753 (2000-11-01), None
patent: 2001 152281 (2001-06-01), None
patent: 2001 152282 (2001-06-01), None
patent: 2001 152283 (2001-06-01), None
patent: 2001 207240 (2001-07-01), None
patent: 2003 253390 (2003-09-01), None
patent: 2004 169054 (2004-06-01), None
patent: 2004 359970 (2004-12-01), None
patent: 2005 23342 (2005-01-01), None
patent: 2005-23342 (2005-01-01), None
patent: 2005 187935 (2005-07-01), None
patent: 2006 200032 (2006-08-01), None
patent: WO 2005/054532 (2005-06-01), None
U.S. Appl. No. 12/095,040, filed May 27, 2008, Sakamoto, et al.

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