ALLEGHENY TECHNOLOGIES INC.

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Expires: January 31, 2008 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^*
DUNLAP TERRY L
2. Date of Event Requiring Statement (MM/DD/YYYY) 5/2/2007
3. Issuer Name and Ticker or Trading Symbol
ALLEGHENY TECHNOLOGIES INC [ATI]

(Last)        (First)        (Middle)
1000 SIX PPG PLACE
4. Relationship of Reporting Person(s) to Issuer (Check all applicable)
_____ Director                            _____ 10% Owner
___ X ___ Officer (give title below)          _____ Other (specify below)
President, Allegheny Ludlum /

(Street)
PITTSBURGH, PA 15222

(City)              (State)              (Zip) 5. If Amendment, Date Original Filed (MM/DD/YYYY)

6. Individual or Joint/Group Filing (Check Applicable Line)
_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security
(Instr. 4) 2. Amount of Securities Beneficially Owned
(Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5) 4. Nature of Indirect Beneficial Ownership
(Instr. 5)

Common Stock, $0.10 par value 34214.3647 D

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)

1. Title of Derivate Security
(Instr. 4) 2. Date Exercisable and Expiration Date
(MM/DD/YYYY) 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5) 6. Nature of Indirect Beneficial Ownership
(Instr. 5)

Date Exercisable Expiration Date Title Amount or Number of Shares

Stock option (right to buy) ⁽¹⁾ 2/11/2008 Common Stock, $0.10 par value 3779 $45.66 I By Spouse ⁽²⁾

Explanation of Responses:

( 1) Stock options vested in equal installments over three years; all 3,779 stock options were fully vested as of February 11, 2001.

( 2) The reporting person disclaims beneficial ownership of the shares held directly or indirectly by his spouse, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for the purpose of Section 16 of the Securities Exchange Act of 1934 or for any other purpose.

Reporting Owners

Reporting Owner Name / Address Relationships

Director 10% Owner Officer Other

DUNLAP TERRY L
1000 SIX PPG PLACE
PITTSBURGH, PA 15222

President, Allegheny Ludlum

Signatures

/s/ Terry L. Dunlap 5/11/2007

^** Signature of Reporting Person Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock, $0.10 par value	34214.3647	D

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Stock option (right to buy)	⁽¹⁾	2/11/2008	Common Stock, $0.10 par value	3779	$45.66	I	By Spouse ⁽²⁾

Explanation of Responses:
( 1)	Stock options vested in equal installments over three years; all 3,779 stock options were fully vested as of February 11, 2001.
( 2)	The reporting person disclaims beneficial ownership of the shares held directly or indirectly by his spouse, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for the purpose of Section 16 of the Securities Exchange Act of 1934 or for any other purpose.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
DUNLAP TERRY L 1000 SIX PPG PLACE PITTSBURGH, PA 15222			President, Allegheny Ludlum

Signatures
/s/ Terry L. Dunlap		5/11/2007
^** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.