POWER OF ATTORNEY
                        KNOW ALL MEN BY THESE PRESENTS, that I, the undersigned
director and/or officer of Allegheny Technologies Incorporated, hereby
constitute and appoint Elliot S. Davis, Amanda J. Skov and Mary Beth Moore, and
each of them, the undersigned's true and lawful attorneys-in-fact and agents,
with full power of substitution and re-substitution in each, for the undersigned

in his or her name, place and stead, in any and all capacities (including the
undersigned's capacity as a Director and/or officer of Allegheny Technologies
Incorporated), granting unto said attorneys-in-fact and agents, and each of
them, full power and authority to do and perform each and every act and to
execute any and all forms, documents and instruments which said
attorneys-in-fact and agents, or either of them, may deem necessary or advisable

or which may be required under Section 16(a) of the Securities Exchange Act of
1934, as amended ("Section 16(a)"), and any rules, regulations or requirements
of the Securities and Exchange Commission in respect thereof, in connection with

the acquisition, by purchase or otherwise, or disposition, by sale, gift or
otherwise, of beneficial ownership of shares of common stock of Allegheny
Technologies Incorporated (and any derivative security relating thereto) by the
undersigned, as fully to all intents and purposes as the undersigned might or
could do in person, including specifically, but without limiting the generality
of the foregoing, the power and authority to sign the name of the undersigned to

any Statement of Changes in Beneficial Ownership of Securities on Form 4 ("Form
4") to be filed with the Securities and Exchange Commission in respect of any
such transaction, to any and all amendments to any such Form 4, and to any
instruments or documents filed as part of or in connection with any such Form 4,

and to file such documents with the Securities and Exchange Commission, any
securities exchange and said corporation; and the undersigned hereby ratifies
and confirms all that said attorneys-in-fact and agents, or either of them, or
their or his or her substitute or substitutes, may lawfully do or cause to be
done by virtue hereof.

                        The undersigned acknowledges that he or she is
appointing said attorneys-in-fact and agents solely for the convenience of the
undersigned in complying with the reporting requirements of Section 16(a) and
said attorneys-in-fact and agents shall not be liable to the undersigned for any

action or failure to take action in their capacity as such.  The undersigned
shall at all times remain fully and solely responsible for compliance with
Section 16(a), including for determining whether and when any Form 4 must be
filed thereunder and the accuracy and completeness of the information set forth
in any Form 4 so filed. The undersigned agrees not to institute any action or
suit at law or in equity against said attorneys-in-fact and agents, or each of
them, for any action or failure to take action pursuant to the power granted
hereunder or for any deficiency in any action so taken.  The undersigned further

agrees to indemnify and hold said attorneys-in-fact and agents and each of them
harmless from any damages, losses, costs or expenses incurred by them as a
result of any action taken or any failure to take action in their capacity as
such or for any deficiency in any taken.

                        IN WITNESS WHEREOF, I have subscribed these presents on
the date set opposite my name below.


Date:         February 19, 2018          	/s/ Herbert J. Carlisle
                				Herbert J. Carlisle, Directo




Witness:   /s/ Amanda J. Skov