Superior in machinability and method of production of same

Details Superior in machinability and method of production of same Superior in machinability and method of production of same

2003-11-14

2009-02-10

Yee, Deborah (Department: 1793)

Metal treatment

Stock

Ferrous

C148S320000, C148S328000, C420S087000, C420S088000, C420S121000, C420S120000, C420S128000

Reexamination Certificate

active

07488396

ABSTRACT:
The present invention provides steel superior in machinability comprised of, by wt %, C: 0.005 to 0.2%, Si: 0.001 to 0.5%, Mn: 0.2 to 3.0%, P: 0.001 to 0.2%, S: 0.03 to 1.0%, T.N: 0.002 to 0.02%, T.O: 0.0005 to 0.035%, and the balance of Fe and unavoidable impurities, said steel satisfying one or both of Mn/S in the steel being 1.2 to 2.8 or an area ratio of pearlite over a grain size of 1 μm in a microstructure of the steel being not more than 5%.

REFERENCES:
patent: 4279646 (1981-07-01), Kato et al.
patent: 3718772 (1987-12-01), None
patent: 61-104049 (1986-05-01), None
patent: 02047240 (1990-02-01), None
patent: 07-034189 (1995-02-01), None
patent: 11-293391 (1999-10-01), None
patent: 2000-034538 (2000-02-01), None
patent: 2000-160284 (2000-06-01), None
patent: 2000160284 (2000-06-01), None
patent: 2000-319753 (2000-11-01), None
patent: 2001-329335 (2001-11-01), None
patent: 2002-3991 (2002-01-01), None
patent: 2002-249823 (2002-09-01), None
Japanese Office Action dated May 20, 2008 issued in corresponding Japanese Application No. 2002-332668.
Japanese Office Action dated May 20, 2008 issued in corresponding Japanese Application No. 2002-332658.

Affiliated with

Also associated with

Rating

Superior in machinability and method of production of same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Superior in machinability and method of production of same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superior in machinability and method of production of same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4095318