The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 20, 2018

Filed:

Jan. 30, 2012
Applicants:

Jayoung Koo, Sommerset, NJ (US);

Narasimha-rao V. Bangaru, Pittstown, NJ (US);

Swarupa Soma Bangaru, Annadale, NJ (US);

Hyun-woo Jin, Easton, PA (US);

Adnan Ozekcin, Bethlehem, PA (US);

Raghavan Ayer, Basking Ridge, NJ (US);

Douglas P. Fairchild, Sugar Land, TX (US);

Danny L. Beeson, Houston, TX (US);

Douglas S. Hoyt, The Woodlands, TX (US);

James B. Lebleu, Jr., Houston, TX (US);

Shigeru Endo, Tokyo, JP;

Mitsuhiro Okatsu, Tokyo, JP;

Shinichi Kakihara, Tokyo, JP;

Moriyasu Nagae, Tokyo, JP;

Inventors:

Jayoung Koo, Sommerset, NJ (US);

Narasimha-Rao V. Bangaru, Pittstown, NJ (US);

Hyun-Woo Jin, Easton, PA (US);

Adnan Ozekcin, Bethlehem, PA (US);

Raghavan Ayer, Basking Ridge, NJ (US);

Douglas P. Fairchild, Sugar Land, TX (US);

Danny L. Beeson, Houston, TX (US);

Douglas S. Hoyt, The Woodlands, TX (US);

James B. LeBleu, Jr., Houston, TX (US);

Shigeru Endo, Tokyo, JP;

Mitsuhiro Okatsu, Tokyo, JP;

Shinichi Kakihara, Tokyo, JP;

Moriyasu Nagae, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 8/10 (2006.01); C22C 38/02 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C21D 9/14 (2006.01); C22C 38/04 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/16 (2006.01);
U.S. Cl.
CPC ...
C22C 38/02 (2013.01); C21D 6/005 (2013.01); C21D 8/0226 (2013.01); C21D 8/0263 (2013.01); C21D 9/14 (2013.01); C22C 38/04 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); C21D 2211/002 (2013.01); C21D 2211/005 (2013.01); C21D 2211/008 (2013.01);
Abstract

A steel composition and method from making a dual phase steel therefrom. The dual phase steel may have carbon of about 0.05% by weight to about 0.12 wt %; niobium of about 0.005 wt % to about 0.03 wt %; titanium of about 0.005 wt % to about 0.02 wt %; nitrogen of about 0.001 wt % to about 0.01 wt %; silicon of about 0.01 wt % to about 0.5 wt %; manganese of about 0.5 wt % to about 2.0 wt %; and a total of molybdenum, chromium, vanadium and copper less than about 0.15 wt %. The steel may have a first phase consisting of ferrite and a second phase having one or more of carbide, pearlite, martensite, lower bainite, granular bainite, upper bainite, and degenerate upper bainite. A solute carbon content in the first phase may be about 0.01 wt % or less.


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