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

                                 SCHEDULE 13D/A

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 2)*

                        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)

                                  May 17, 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 7 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).




CUSIP NO. 144285 10 3                                          Page 3 of 7 Pages



                                 SCHEDULE 13D/A
                                (Amendment No. 2)


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                       674,770
SHARES                     -----------------------------------------------------
BENEFICIALLY               8.    SHARED VOTING POWER                     983,844
OWNED BY                   -----------------------------------------------------
EACH                       9.    SOLE DISPOSITIVE POWER                  674,770
REPORTING                  -----------------------------------------------------
PERSON WITH                10.   SHARED DISPOSITIVE POWER                983,844
                           -----------------------------------------------------

11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
     PERSON  1,658,614
             -------------------------------------------------------------------

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

13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)      6.74%  
                                                         -------------
14. TYPE OF REPORTING PERSON  IN






CUSIP NO. 144285 10 3                                          Page 4 of 7 Pages


          This Schedule 13D/A,  Amendment No. 2 (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 (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)
108,844 shares of CTC Common Stock as co-trustee of two trusts (the "Trusts) for
the benefit of her two grandchildren, (ii) 875,000 shares of CTC Common Stock as
co-trustee  and lifetime  beneficiary of the Ada E. Rossin  Revocable  Trust and
(iii) 674,770  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  1,658,614  shares  of CTC  Common  Stock  or
approximately 6.74% of the outstanding shares of CTC Common Stock.

          (b) Ada E. Rossin has sole  voting   and  dispositive  power  over the
647,770 shares of CTC Common Stock in the Ada E. Rossin QTIP Trust. In addition,
Ada E. Rossin has shared voting and dispositive power over 108,844 shares of CTC
Common Stock in the Trusts and the 875,000 shares in the Ada E. Rossin Revocable
Trust.


Item 6.  Contracts, Arrangements, Understandings or Relationships  with  Respect
         to Securities of the Issuer.

Item 6 of the Schedule 13D is hereby  amended by adding the following at the end
of such Item:

     The Ada E.  Rosin  Revocable  Trust  was  established  pursuant  to a Trust
Agreement  dated  September 17, 2003, by and between Ada E. Rossin,  as settlor,
and Ada E.  Rossin,  Robert  J.  Lally  and John  Campbell  Harmon  (the  "Trust
Agreement").  The  Trust  Agreement  contains  certain  provisions  that  may be
considered arrangements,  understandings or relationships with respect to shares
of CTC Common Stock.  The sections of the Trust  Agreement that may be deemed to
be  arrangements,  understandings  or  relationships  with respect to CTC common
stock are filed herewith as Exhibit 99.2 to this Amendment and are  specifically
incorporated by reference herein.


     The Ada E. Rossin QTIP Trust was  established  pursuant to Article 6 of the
Last  Will and  Testament  of Peter C.  Rossin  ("Will").  Article 6 of the Will
contains certain provisions that may be considered arrangements,  understandings
or  relationships  with respect to shares of CTC





CUSIP NO. 144285 10 3                                          Page 5 of 7 Pages



Common Stock.  Article 6 of the Will is  specifically  incorporated by reference
herein from Exhibit  99.1 to the amended  Schedule 13D filed by Ada E. Rossin on
November 5, 2004.


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).

           99.1         Article 6  of  the Last Will and  Testament of  Peter C.
                        Rossin, Jr. (incorporated by reference from Exhibit 99.1
                        to the  amended  Schedule  13D filed by Ada E. Rossin on
                        November 5, 2004).

           99.2         Trust Agreement dated September 17, 2003, by and between
                        Ada E. Rossin, as settlor, and Ada E. Rossin,  Robert J.
                        Lally and John Campbell Harmon (filed herewith).







CUSIP NO. 144285 10 3                                          Page 6 of 7 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: May 25, 2005
                                            /s/ John A. Martin                  
                                            ------------------------------------
                                            John A. Martin, Attorney-in-Fact for
                                            Ada E. Rossin






CUSIP NO. 144285 10 3                                          Page 7 of 7 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).

          99.1         Article 6 of the  Last  Will  and Testament of  Peter  C.
                       Rossin, Jr.  (incorporated by reference from Exhibit 99.1
                       to the  amended  Schedule  13D  filed by Ada E. Rossin on
                       November 5, 2004).

          99.2         Trust Agreement dated September 17, 2003, by and  between
                       Ada E. Rossin, as settlor, and Ada  E. Rossin, Robert  J.
                       Lally and John Campbell Harmon (filed herewith).