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

                                 SCHEDULE 13D/A

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 3)*

                        CARPENTER TECHNOLOGY CORPORATION
        -----------------------------------------------------------------
                                (Name of Issuer)

                     Common Stock, par value $5.00 per share
        -----------------------------------------------------------------
                         (Title of Class of Securities)

                                   144285 10 3
                       -----------------------------------
                                 (CUSIP Number)

                                 John A. Martin
                           c/o PNC Advisors - Hawthorn
                           249 Fifth Avenue, 2nd Floor
                              Pittsburgh, PA 15222
                                 (412) 762-2766
        -----------------------------------------------------------------
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                               November 3, 2005
             -------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box
[ ].

Note: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See ss.240.13d-7 for other
parties to whom copies are to be sent.

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.



CUSIP NO. 144285 10 3                                         Page 2 of 6 Pages

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).




                                                              Page 3 of 6 Pages


                                 SCHEDULE 13D/A
                                (Amendment No. 3)


CUSIP No. 144285  10  3

1.       NAME OF REPORTING PERSON Ada E. Rossin

         I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (Entities Only)

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP          (a)  [   ]
                                                                   (b)  [ X ]
3.       SEC USE ONLY

4.       SOURCE OF FUNDS

5.       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
         PURSUANT TO ITEMS 2(d) or 2(e)                                 [   ]

6.       CITIZENSHIP OR PLACE OF ORGANIZATION   United States Citizen

NUMBER OF        7.    SOLE VOTING POWER                          474,770 
SHARES           ---------------------------------------------------------
BENEFICIALLY     8.    SHARED VOTING POWER                        906,144 
OWNED BY         ---------------------------------------------------------
EACH             9.    SOLE DISPOSITIVE POWER                     474,770 
REPORTING        ---------------------------------------------------------
PERSON WITH      10.   SHARED DISPOSITIVE POWER                   906,144 
                 ---------------------------------------------------------

11.      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
         PERSON  1,380,914
                 ---------------------------------------------------------

12.      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES                           [   ]

13.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)      5.51%  
                                                               ---------

14.      TYPE OF REPORTING PERSON IN





CUSIP NO. 144285 10 3                                         Page 4 of 6 Pages


                  This Schedule 13D/A, Amendment No. 3 (the "Amendment") relates
to the common stock, par value $5.00 per share ("Common Stock") of Carpenter
Technology Corporation ("CTC"). Except as specifically set forth in this
Amendment, the Schedule 13D, as amended on November 5, 2004 and May 26, 2005
(the "Schedule 13D"), remains unmodified.


Item 5.  Interest in Securities of the Issuer.

Items 5(a) and (b) of the Schedule 13D are hereby amended and restated to read
as set forth below. Items 5(c)-(e) remain unchanged.

                  (a) Ada E. Rossin may be deemed to indirectly beneficially own
(i) 88,844 shares of CTC Common Stock as co-trustee of two trusts (the "Trusts)
for the benefit of her two grandchildren, (ii) 817,300 shares of CTC Common
Stock as co-trustee and lifetime beneficiary of the Ada E. Rossin Revocable
Trust and (iii) 474,770 shares of CTC Common Stock as trustee and beneficiary of
the Ada E. Rossin QTIP Trust. Accordingly, Ada E. Rossin may be deemed to be the
beneficial owner of a total of 1,380,914 shares of CTC Common Stock or
approximately 5.51% of the outstanding shares of CTC Common Stock.

                  (b) Ada E. Rossin has sole voting and dispositive power over
the 474,770 shares of CTC Common Stock in the Ada E. Rossin QTIP Trust. In
addition, Ada E. Rossin has shared voting and dispositive power over 88,844
shares of CTC Common Stock in the Trusts and the 817,300 shares in the Ada E.
Rossin Revocable Trust.



Item 7.   Material to be Filed as Exhibits.

         Exhibit No.                Description
        ------------             -----------------

            24.1         Power of Attorney (incorporated by reference from 
                         Exhibit 24.1 to the amended Schedule 13D filed by 
                         Ada E. Rossin on November 5, 2004).








CUSIP NO. 144285 10 3                                         Page 5 of 6 Pages

                                    Signature

                  After reasonable inquiry and to the best of my knowledge and
belief, I certify that the information set forth in this statement is true,
complete, and correct.

Dated: November 7, 2005
                                         /s/ John A. Martin                    
                                        ---------------------------------------
                                        John A. Martin, Attorney-in-Fact for
                                        Ada E. Rossin







CUSIP NO. 144285 10 3                                         Page 6 of 6 Pages


                                  Exhibit Index

                  Exhibit No.               Description
                --------------            ----------------

                  24.1        Power of Attorney (incorporated by reference from
                              Exhibit 24.1 to the amended Schedule 13D filed by 
                              Ada E. Rossin on November 5, 2004).