As filed with the U.S. Securities and Exchange Commission on October 19, 2006
                                                      Registration No. 333-18829

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                          U.S. SECURITIES AND EXCHANGE
                           COMMISSION Washington, D.C.
                                      20549

                              --------------------

                   Post-Effective Amendment No. 3 on Form S-3

                                       to

                                    Form S-1

       REGISTRATION STATEMENT ON FORM S-3 UNDER THE SECURITIES ACT OF 1933

                              --------------------

                           Titanium Metals Corporation
             (Exact name of registrant as specified in its charter)

                              TIMET Capital Trust I
             (Exact name of registrant as specified in its charter)

        DELAWARE                    3339                       13-5630895
    (State or other        (Primary Standard Industrial      (I.R.S. Employer
    jurisdiction of          Classification Code Number)    Identification No.)
     incorporation or
     organization)

                              THREE LINCOLN CENTRE
                          5430 LBJ FREEWAY, SUITE 1700
                            DALLAS, TEXAS 75240-2697
                            TELEPHONE: (972) 233-1700
               (Address, including zip code, and telephone number,
             including area code, of Registrant's principal offices)

                            A. ANDREW R. LOUIS, ESQ.
                     SECRETARY AND ASSOCIATE GENERAL COUNSEL
                              THREE LINCOLN CENTER
                          5430 LBJ FREEWAY, SUITE 1700
                            DALLAS, TEXAS 75240-2697
                            TELEPHONE: (972) 233-1700
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)

Approximate date of commencement of proposed sale to the public: May 14, 1997.

If the only securities being registered on this form are being offered pursuant
to dividend or interest reinvestment plans, please check the following box. [ ]

If any of the  securities  being  registered on this form are to be offered on a
delayed or continuous  basis  pursuant to Rule 415 under the  Securities  Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [x]

If this Form is filed to register additional securities for an offering pursuant
to Rule 462(b) under the Securities Act, please check the following box and list
the Securities Act  registration  number of the earlier  effective  registration
statement for the same offering. [ ]

If this Form is a  post-effective  amendment filed pursuant to Rule 462(c) under
the  Securities  Act,  check  the  following  box and  list the  Securities  Act
registration statement number of the earlier registration statement for the same
offering. [ ]

If delivery  of the  prospectus  is  expected  to be made  pursuant to Rule 434,
please check the following box. [x]

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                                EXPLANATORY NOTE

     Titanium Metals  Corporation,  a Delaware  corporation  ("TIMET"),  filed a
Registration Statement on Form S-1 (Reg. No. 333-18829) with the U.S. Securities
and Exchange  Commission on December 12, 1996, which Registration  Statement was
amended by two pre-effective  amendments, a post-effective amendment no. 1 and a
post effective amendment no. 2 on Form S-3 to the Registration Statement on Form
S-1 and three  prospectus  supplements  filed under Rule  424(b)(3)  promulgated
under the Securities Act of 1933, as amended  (collectively,  the  "Registration
Statement").  The Registration Statement registered 4,025,000 6-5/8% Convertible
Preferred Securities,  Beneficial Unsecured Convertible Securities (the "BUCS"),
liquidation  preference $50 per BUCS,  which  represented  undivided  beneficial
ownership interests in the assets of TIMET Capital Trust I, a statutory business
trust  formed  under the laws of the state of  Delaware,  and the  shares of the
common stock, par value $0.01 per share (the "Common Stock"),  of TIMET issuable
upon conversion of the BUCS.

     On  July  30,  2004,  TIMET  commenced  an  exchange  offer  pursuant  to a
Registration  Statement on Form S-4 (Reg. No.  333-114218) to exchange 4,024,820
shares of its 6-3/4% Series A Convertible  Preferred  Stock, par value $0.01 per
share,  for all of the then  outstanding  4,024,820  BUCS.  At the  close of the
exchange offer on August 31, 2004,  approximately  3,909,103 BUCS (approximately
97.1% of the issued and  outstanding  BUCS) had been tendered for  exchange.  At
that  time,  approximately  115,717  BUCS not  tendered  for  exchange  remained
outstanding.

     On March 3, 2006,  TIMET called all of the outstanding BUCS for redemption.
Subsequent  to March 3, 2006 and  through  March 20,  2006,  113,400 of the then
outstanding  113,467 BUCS were converted  into shares of Common Stock.  On March
24, 2006, TIMET redeemed the remaining 67 BUCS for cash.

     On March 27, 2006, the TIMET Capital Trust I, the issuer of the BUCS, filed
a certificate of  cancellation of statutory trust with the Secretary of State of
the state of  StateplaceDelaware  that cancelled the trust. As of July 20, 2006,
TIMET and JPMorgan Chase Bank, National Association,  as successor trustee under
the TIMET  Capital  Trust I, entered into a  satisfaction  and  discharge of the
Indenture  dated as of November 20, 1996  pursuant to which the trust had issued
the BUCS.

     As a result of the foregoing:

     o    there are no BUCS outstanding

     o    there are no shares of Common Stock  issuable  upon  conversion of the
          BUCS

     o    there are no BUCS or shares of Common  Stock to  deregister  under the
          Registration Statement

     o    the TIMET Capital Trust I has been cancelled; and

     o    the offering evidenced by the Registration Statement has terminated.

The  filing of this  Post-Effective  Amendment  No. 3 on Form S-3 to Form S-1 --
Registration  Statement  on  Form  S-3 is to  evidence  the  termination  of the
registration of the offering.





                                   SIGNATURES

     Pursuant to the  requirements  of the  Securities  Act of 1933, as amended,
Titanium Metals Corporation  certifies that it has reasonable grounds to believe
that it meets all the requirements for filing this Post-Effective  Amendment No.
3 on Form S-3 to Form  S-1 --  Registration  Statement  on Form S-3 and has duly
caused  this  post  effective  amendment  to be  signed  on  its  behalf  by the
undersigned, thereunto duly authorized, in Dallas, Texas on October 19, 2006.


                                            TITANIUM METALS CORPORATION




                                            By:    /s/ Scott E. Sullivan
                                                   ---------------------------
                                                   Scott E. Sullivan
                                                   Vice President and Controller

     Pursuant to the  requirements  of the Securities  Act, this  Post-Effective
Amendment  No. 3 on Form S-3 to Form S-1 --  Registration  Statement on Form S-3
has been  signed by the  following  persons in the  capacities  and on the dates
indicated:



          Signature                                          Title                            Date
---------------------------------                     ---------------------             -------------------
                                                                                  



/s/ Harold C. Simmons                                 Chairman of the Board             October 19, 2006
----------------------------
Harold C. Simmons




/s/ Steven L. Watson                                  President and Chief Executive     October 19, 2006
----------------------------                          Officer and Director (Principal
Steven L. Watson                                      Executive Officer)




/s/ Bobby D. O'Brien                                  Executive Vice President          October 19, 2006
----------------------------                          Finance and Chief Financial
Bobby D. O'Brien                                      Officer (Principal Financial
                                                      Officer)




/s/ Scott E. Sullivan                                 Vice President and Controller     October 19, 2006
----------------------------                          (Principal Accounting Officer)
Scott E. Sullivan




/s/ Keith R. Coogan                                   Director                          October 19, 2006
----------------------------
Keith R. Coogan




/s/ Norman N. Green                                   Director                          October 10, 2006
----------------------------
Norman N. Green



/s/ Glenn R. Simmons                                  Director                          October 19, 2006
----------------------------
Glenn R. Simmons




/s/ Thomas P. Stafford                                Director                          October 19, 2006
-------------------------
Thomas P. Stafford




/s/ Paul J. Zucconi                                   Director                          October 19, 2006
-------------------------
Paul J. Zucconi