UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                                        
                             Washington, D.C.  20549
                                        
                                        
                             -----------------------
                                        
                                    FORM 8-K
                                        
                                 CURRENT REPORT
                                        
                       Pursuant to Section 13 or 15(d) of
                       The Securities Exchange Act of 1934
                                        
                             -----------------------
                                        
                Date of Report (Date of earliest event reported):
                               September 20, 2005
                                        
                                        
                         United States Steel Corporation
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             (Exact name of registrant as specified in its charter)


       Delaware                1-16811               25-1897152
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   (State or other        (Commission File          (IRS Employer
   jurisdiction of             Number)           Identification No.)
    incorporation)

       600 Grant Street, Pittsburgh, PA              15219-2800
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      (Address of principal executive               (Zip Code)
                   offices)

                                 (412) 433-1121
                         ------------------------------
                         (Registrant's telephone number,
                              including area code)
                                        
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Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[  ] Written communications pursuant to Rule 425 under the Securities Act (17
     CFR 230.425)

[  ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
     240.14a-12)

[  ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
     Exchange Act (17 CFR 240.14d-2(b))

[  ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
     Exchange Act (17 CFR 240.13e-4(c))

 2

Item 8.01. Other Information

United States Steel Corporation is filing the September 20, 2005 press release
titled "U. S. Steel Provides Updates on Gary Blast Furnace Rebuild and Third
Quarter Business Conditions." Attached is a copy of the press release in
substantially the form released.

Item 9.01. Financial Statements and Exhibits

     (c)  Exhibits

         99.1 Press Release - "U. S. Steel Provides Updates on Gary Blast
              Furnace Rebuild and Third Quarter Business Conditions"


SIGNATURE

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

UNITED STATES STEEL CORPORATION


By   /s/ Larry G. Schultz
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     Larry G. Schultz
     Vice President & Controller



Dated:  September 20, 2005