UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                   FORM 12b-25
                           NOTIFICATION OF LATE FILING


                           Titanium Metals Corporation

                            SEC FILE NUMBER: 0-28538
                             CUSIP NUMBER: 888339108




     [ X ] Form 10-K [ ] Form 20-F [ ] Form 11-K [ ] Form 10-Q [ ] Form 10-D
                          [ ] Form N-SAR [ ] Form N-CSR


                       For Period Ended: December 31, 2005


      [ ] Transition Report on Form 10-K [ ] Transition Report on Form 20-F
      [ ] Transition Report on Form 11-K [ ] Transition Report on Form 10-Q
                       [ ] Transition Report on Form N-SAR
                        For the Transition Period Ended:


    Nothing in this form shall be construed to imply that the Commission has
                   verified any information contained herein.



 If the notification relates to a portion of the filing checked above, identify
          the Item(s) to which the notification relates: Not applicable




                         PART I - REGISTRANT INFORMATION


Full Name of Registrant: Titanium Metals Corporation

Former Name if Applicable: Not Applicable

Address of Principal Executive Office: 5430 LBJ Freeway, Suite 1700
                                       Dallas, Texas  75240


                        PART II - RULES 12b-25(b) AND (c)


If the subject report could not be filed without  unreasonable effort or expense
and the registrant seeks relief pursuant to Rule 12b-25(b), the following should
be completed.

[X] (a)   The reasons  described in  reasonable  detail in Part III of this form
          could not be eliminated without unreasonable effort or expense;

[X] (b)   The subject annual report,  semi-annual  report,  transition report on
          Form 10-K,  Form 20-F,  11-K,  Form  N-SAR or Form  N-CSR,  or portion
          thereof,  will be  filed  on or  before  the  fifteenth  calendar  day
          following the prescribed due date; or the subject  quarterly report or
          transition report on Form 10-Q or subject  distribution Report on Form
          10-D,  or  portion  thereof,  will be filed  on or  before  the  fifth
          calendar day following the prescribed due date; and

[  ] (c)  The accountant's statement or other exhibit required by Rule 12b-25(c)
          has been attached, if applicable.



                              PART III - NARRATIVE


State below in reasonable  detail the reasons why Forms 10-K,  20-F, 11-K, 10-Q,
10-D, N-SAR,  N-CSR, or the transition  report or portion thereof,  could not be
filed within the prescribed period:

The  Registrant  has been unable to complete the  preparation  and review of its
Annual  Report  on Form  10-K for the year  ended  December  31,  2005  ("Annual
Report")  within  the  required  time  period,  without  unreasonable  effort or
expense,   due  to  unanticipated  delays  in  assembling  all  information  and
completing all reviews  required with respect to such Annual  Report,  primarily
because the  Registrant  is still in the  process of  completing  its  financial
statements and assessment of its internal control over financial reporting as of
December 31, 2005.

Based on the  assessment of the  Registrant's  internal  control over  financial
reporting  performed to date,  the  Registrant  believes it is possible  that it
would  conclude that one or more material  weaknesses  may exist in its internal
control over financial  reporting as of December 31, 2005,  which would preclude
the  Registrant  from  concluding  that  its  internal  control  over  financial
reporting  was  effective as of such date.  In the event the Company  ultimately
reaches  such  conclusion,   the  Company  would  also  expect  its  independent
registered  public  accounting  firm to issue an opinion that also concludes the
Company's  internal  control over  financial  reporting  was not effective as of
December  31,  2005.  The  ultimate  conclusions  in this  regard are subject to
completion  of the  Company's  assessment  that is  currently  in  process.  The
Registrant  currently  expects to be able to complete such assessment within the
time provided by this Form 12b-25,  at which time the Registrant  would file its
complete Annual Report,  including  management's report on internal control over
financial reporting.




                           PART IV - OTHER INFORMATION


(1)  Name  and  telephone  number  of  person  to  contact  in  regard  to  this
notification:

          Bruce P. Inglis,  Vice  President - Finance and Corporate  Controller.
          303-296-5600.


(2) Have all other  periodic  reports  required under Section 13 or 15(d) of the
Securities  Exchange Act of 1934 or Section 30 of the Investment  Company Act of
1940  during  the  preceding  12  months  or for such  shorter  period  that the
Registrant was required to file such report(s) been filed?  If the answer is no,
identify report(s).

                  [X] Yes     [] No


(3) Is it anticipated that any significant  change in results of operations from
the  corresponding  period for the last  fiscal  year will be  reflected  by the
earnings statements to be included in the subject report or portion thereof?

                  [X] Yes      [] No


If so, attach an explanation of the  anticipated  change,  both  narratively and
quantitatively, and, if appropriate, state the reasons why a reasonable estimate
of the results cannot be made.

     See the press release issued by the  Registrant  today and filed as Exhibit
99.1 to the Registrant's Current Report on Form 8-K dated March 16, 2006.





Titanium  Metals  Corporation  has caused this  notification to be signed on its
behalf by the undersigned thereunto duly authorized.





Date: March 16, 2006                       TITANIUM METALS CORPORATION


                                    By:   /s/ Bruce P. Inglis
                                          Bruce P. Inglis
                                          Vice President - Finance and
                                          Corporate Controller