| þ | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|--------|-----------------------------------------------------------------------------------------|

|   | For the quarterly period ended March 31, 2011 |
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|   | OR |
|--------|----|

| o | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|---|-------------------------------------------------------------------------------------------|

|   | Commission file number 1-14368 |
|--------|--------------------------------|

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

| Delaware                                                       |   | 13-5630895                        |
|----------------------------------------------------------------|--------|-----------------------------------|
| (State or other jurisdiction of incorporation or organization) |   | (IRS Employer Identification No.) |

|                                                                 |                                                               5430 LBJ Freeway, Suite 1700, Dallas, Texas 75240-2697 |   |
|----------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|
| (Address of principal executive offices)   (Zip Code) |

|                                                                                            Registrant’s telephone number, including area code: | (972) 233-1700 |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|

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|   | EXPLANATORY NOTE |
|--------|------------------|

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|   |   |                                                                                                                                                                                                    |
|--------|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 10.1** |   | Amendment No. 2 to Purchase and Supply Agreement between Titanium Metals Corporation and certain subsidiaries and Rolls-Royce plc and certain subsidiaries effective February 14, 2011, filed herewith. |
|   |   |                                                                                                                                                                                                    |
| **     |   | Portions of the exhibit have been omitted pursuant to a request for confidential treatment                                                                                                              |
|   |   |                                                                                                                                                                                                    |

|   | Note: | We have retained a signed original of any exhibit listed above that contains signatures, and we will provide any such exhibit to the SEC or its staff upon request.  Such request should be directed to the attention of our Corporate Secretary at our corporate offices located at 5430 LBJ Freeway, Suite 1700, Dallas, Texas 75240. |
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|                  |   | TITANIUM METALS CORPORATION                               |
|-----------------------|--------|-----------------------------------------------------------|
|                  |   |                                                      |
|                  |   |                                                      |
|                  |   |                                                      |
| Date: August 19, 2011 | By     | /s/ James W. Brown                                        |
|                  |   | James W. Brown                                            |
|                  |   | Vice President and Chief Financial Officer                |
|                  |   | Principal Financial Officer                               |
|                  |   |                                                      |
|                  |   |                                                      |
| Date: August 19, 2011 | By     | /s/ Scott E. Sullivan                                     |
|                  |   | Scott E. Sullivan                                         |
|                  |   | Vice President and ControllerPrincipal Accounting Officer |

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