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                                                                     Exhibit 4.6

                      SECOND AMENDMENT TO CREDIT AGREEMENT
                      ------------------------------------

                  THIS SECOND AMENDMENT TO CREDIT AGREEMENT, dated as of May 30,
1997, (this "Second Amendment"), is by and among OLYMPIC STEEL, INC., an Ohio
corporation ("Borrower"), and NATIONAL CITY BANK ("NCB") and the other Banks
signatory hereto or that become parties to the Credit Agreement hereafter
identified by amendment or supplement thereto ("Banks") and NATIONAL CITY BANK,
as agent for the Banks (in that capacity, "NCB-Agent").

                                    RECITALS
                                    --------

                  A. Borrower, the Banks and NCB-Agent have entered into a
Credit Agreement, dated as of October 4, 1996 (the "Agreement"), pursuant to
which Borrower may obtain, among other things, (i) loans ratably from the Banks
that are on a revolving credit basis and (ii) subject LCs issued by NCB in which
the Banks agree to ratably share the obligations in respect thereof, in each
case until the expiration date.

                  B. Borrower, the Banks and NCB-Agent have entered into the
First Amendment to Credit Agreement, dated as of January 24, 1997 (the "First
Agreement"), in order to increase the amount of the commitments by the Banks for
subject revolving credit loans and additional subject LCs by Ten Million Dollars
($10,000,000) and to permit Borrower to make certain joint venture investments
and guarantees of indebtedness of the joint venture entities.

                  C. Borrower, the Banks and NCB-Agent desire to again amend the
Agreement by this Second Amendment to Credit Agreement (the "Second Amendment")
in order to increase the amount of the commitments by the Banks for subject
revolving credit loans and additional subject LCs by Eight Million Dollars
($8,000,000), to add a commitment by Banks for new Series A term loans in the
amount of Seventeen Million Dollars ($17,000,000), to permit certain borrowing
from other lenders, to permit the Borrower to allow certain of its property to
become encumbered by liens in favor of other lenders and to extend the
expiration date to June 30, 2000.

                                    AGREEMENT
                                    ---------

                  Accordingly, the parties have agreed and do hereby agree as
follows:

         1. Clause (a)(i) of section 1B SUMMARY OF THE AGREEMENT shall be
deleted in its entirety and the following shall be inserted in place thereof:

                  (i)      subject loans ratably from the Banks that are either
                           on a revolving credit basis or a term loan basis and

         2. Subsection 2A.01 SUBJECT REVOLVING LOANS AND LETTERS OF CREDIT
AMOUNTS of the Agreement shall be deleted in its entirety and the following
shall be substituted in place thereof:

                  2A.01 SUBJECT REVOLVING CREDIT LOANS AND LETTERS OF CREDIT
         AMOUNTS -- The aggregate amount of the commitments by the Banks for
         subject revolving credit loans and additional subject LCs shall be
         Sixty-Eight Million Dollars ($68,000,000). The aggregate amount of the
         subject commitments for additional subject LCs shall not exceed Five
         Million Dollars ($5,000,000). The aggregate amount of the subject
         commitments for the subject revolving credit loans and additional
         subject


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         LCs may be reduced from time to time pursuant to subsection 2A.03 and
         the subject commitments may be terminated pursuant to Section 5B. The
         aggregate amount of the subject commitments by the Banks for existing
         subject LCs as of May 30, 1997 is Nine Million, Eight Hundred Forty
         Thousand, Eight Hundred Thirty-Six Dollars ($9,840,836) but that amount
         may be reduced from time to time pursuant to subsection 2A.03 and the
         subject commitments may be terminated pursuant to Section 5B. The
         amount of each Bank's subject commitment to make subject revolving
         credit loans to Borrower and to participate in respect of additional
         subject LCs and existing subject LCs (subject to such reduction or
         termination), and the proportion (expressed as a percentage) that it
         bears to all of the subject commitments, is set forth opposite the
         Bank's name on SCHEDULE 2A.01 hereto dated May 30, 1997.

         3. The Agreement is amended by adding the following a new subsection
2A.01.1 SERIES A TERM LOANS immediately following subsection 2A.01 thereof:

                  2A.01.1 SERIES A TERM LOANS-- (a) The aggregate amount of the
         series A subject term loans shall be an amount up to, but not
         exceeding, Seventeen Million Dollars ($17,000,000). The series A
         subject term loans shall be made and disbursed not more frequently than
         once each calendar month and the aggregate amount thereof shall not
         exceed eighty percent (80%) of costs reasonably incurred and paid by
         Borrower for construction of a temper mill facility in Bettendorf, Iowa
         (the "Iowa Mill Project"). With each request for a series A subject
         term loan advance, Borrower shall submit to NCB-Agent evidence of such
         costs so incurred and paid and such other information as NCB-Agent may
         request with respect to the Iowa Mill Project including, without
         limitation, the estimated cost of completing the same. The subject
         commitments for any amount of the series A subject term loans not
         disbursed on or before December 30, 1998 shall automatically and
         immediately expire on December 31, 1998 without any notice to Borrower.

                  (b) Beginning May 30, 1999, the outstanding principal amount
         of the series A subject term loans shall be reduced annually prior to
         the expiration date by an amount equal to ten percent (10%) of the
         aggregate amount thereof outstanding and disbursed prior to December
         31, 1998 (for example, if the aggregate amount of the series A subject
         term loans disbursed is $17,000,000, then the amount of each principal
         reduction prior to the expiration date shall be $1,700,000). A
         principal payment of the series A subject term loans shall be made on
         each May 30 commencing on May 30, 1999 with a final payment of the
         entire outstanding amount of the series A subject term loans being due
         and payable on the expiration date.

                  (c) The amount of each Bank's subject commitment to make
         series A subject term loans (which is subject to termination pursuant
         to Section 5B), and the proportion (expressed as a percentage) that it
         bears to all of the subject commitments relating thereto is set forth
         opposite the Bank's name below.



==========================================================================================================================
                 Bank                          Series A Subject Term Loan                       Percentage
- --------------------------------------------------------------------------------------------------------------------------
                                                                                             
National City Bank                                     $6,800,000                                  40%
- --------------------------------------------------------------------------------------------------------------------------
Mellon Bank, N.A.                                      $5,100,000                                  30%
- --------------------------------------------------------------------------------------------------------------------------
Comerica Bank                                          $5,100,000                                  30%
- --------------------------------------------------------------------------------------------------------------------------
Total                                                  $17,000,000                                 100%
==========================================================================================================================



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                  (d) Anything contained in this subsection 2A.01.1 to the
         contrary notwithstanding, no term loan shall be made or disbursed by
         any of the Banks prior to compliance by Borrower with the conditions
         set forth in section 2B of this Agreement.

         4. Subsection 2A.02 TERM of the Credit Agreement shall be deleted in
its entirety and the following shall be substituted in place thereof:

                  2A.02 TERM -- The portion of the subject commitment created by
         the Agreement prior to amendment, the First Amendment and the Second
         Amendment has or shall become effective as of the date of the initial
         Agreement, the date of the First Amendment and the date of the Second
         Amendment, respectively, and the subject commitment in the aggregate
         shall remain in effect until June 30, 2000 (the "expiration date")
         EXCEPT that (i) a later expiration date may be established from time to
         time pursuant to subsection 2A.05, (ii) the subject commitments shall
         end in any event upon any earlier reduction thereof to zero pursuant to
         subsection 2A.03 or any earlier termination pursuant to Section 5B,
         (iii) the commitment relating to any existing LC shall remain in effect
         until the stated expiration date thereof, even if such date is later
         than the expiration date; and (iv) the commitments for the series A
         subject term loans not disbursed on or prior to December 30, 1998 will
         expire automatically and immediately on December 31, 1998. The series A
         term loans shall be disbursed pursuant to subsection 2A.01.1(a).

         5. Subsection 2A.03 OPTIONAL REDUCTIONS of the Agreement shall be
deleted in its entirety and the following shall be substituted in place thereof:

                  2A.03 OPTIONAL REDUCTIONS -- Borrower shall have the right, at
         all times and without the payment of a premium, to permanently reduce
         the subject commitments for either the (i) subject revolving credit
         loans and/or (ii) the subject term loans, in whole or in part, by
         giving NCB-Agent notice in the form of EXHIBIT 2A.03 attached hereto
         (to be given not later than 12:00 noon of the Banking day next
         preceding the effective date of the reduction and either to be given in
         writing or to be promptly confirmed in writing) of the aggregate amount
         by which the subject commitments are to be reduced and the effective
         date thereof.

                           (a) No such reduction shall reduce any Bank's subject
                  commitment to a lesser amount than the difference of:

                                    (1) that Bank's subject commitment as in
                                    effect at that time less

                                    (2) the aggregate unpaid principal balance
                                    of that Bank's subject loans then
                                    outstanding and its ratable share of any
                                    outstanding subject LCs.

                           (b) Each such reduction of the subject commitments
                  shall aggregate Five Hundred Thousand Dollars ($500,000) or
                  any multiple thereof.

                           (c) Each reduction shall be allocated ratably among
                  the subject commitments.

                           (d) Concurrently with each reduction Borrower shall
                  make a principal payment on each Bank's subject loans then
                  outstanding in a principal amount equal to the excess, if any,
                  of the then aggregate unpaid principal balance of that Bank's
                  subject loans over that Bank's subject commitment as so
                  reduced. Subsection 2B.11 and Section 6C shall apply to each
                  such prepayment.

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         6. Subsection 2A.04 COMMITMENT FEE of the Agreement shall be deleted in
its entirety and the following shall be substituted in place thereof:

                  2A.04 COMMITMENT FEE -- Each Bank shall, so long as its
         subject commitment remains in effect, earn a commitment fee

                           (a) based on the average daily difference between the
                  amount of that Bank's subject commitment for revolving credit
                  loans, term loans and additional subject LCs from time to time
                  in effect and the then aggregate unpaid principal balance of
                  the subject revolving credit loans and term loans then owing
                  to that Bank and the outstanding amount of additional subject
                  LCs,

                           (b) computed at the rate of one-fourth of one percent
                  (1/4%) per annum and

                           (c) payable in arrears by Borrower to NCB-Agent for
                  the account of the Banks quarterannually as of the last
                  business day of March, June, September and December and at the
                  end of the subject commitment.

         7. The introductory paragraph of section 2B SUBJECT LOANS, subsection
2B.01 SUBJECT NOTES and subsection 2B.02 LOAN MIX of the Agreement shall be
deleted in their entirety and the following shall be substituted in place
thereof:

                  2B. SUBJECT LOANS -- Each Bank (for itself only and not for
         the others) agrees, subject to the conditions of this Agreement, that
         so long as that Bank's subject commitment remains in effect, it will
         grant Borrower the subject loans up to the amounts specified to be
         loaned by it in subsections 2A.01 and 2A.01.1 pursuant to this
         Agreement as Borrower may from time to time request; PROVIDED, however,
         that each Bank's obligations to make the subject term loans shall arise
         only when (and not before) Borrower has complied or caused compliance
         with each of the following conditions:

                           (a) Borrower shall have executed and delivered the
                  environmental indemnity agreement to be executed and delivered
                  pursuant to subsection 2EE.03.

                           (b) Borrower shall have caused to be delivered to
                  NCB-Agent such a policy of title insurance or a commitment
                  therefor or endorsements thereto with respect to the land and
                  buildings of Borrower to be subject to a mortgage securing the
                  subject term loans and in such amount as the Banks may
                  reasonably require.

                           (c) Borrower shall have executed and delivered the
                  security documents to be executed and delivered pursuant to
                  subsection 2EE.02 and such documents, including all of the
                  mortgages required by such subsection, shall have been filed
                  for record.

                           (d) Borrower's counsel shall have rendered to each
                  Bank a written opinion in respect of the matters referred to
                  in subsections 4B.01, 4B.02, 4B.03 and 4B.04 as the same
                  relate to the portions of this Second Amendment and the
                  Agreement as so amended that relate to the subject term loans
                  and the documents to be or previously delivered to NCB-Agent
                  or the Banks pursuant to this Second Amendment, in form and
                  substance satisfactory to each Bank.

                           (e) Borrower shall have obtained a phase I
                  environmental report with respect to the land that is to be
                  part of the Iowa Mill Project from a qualified

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                  environmental expert acceptable to the Banks and shall have
                  delivered such report to NCB-Agent.

                  2B.01 SUBJECT NOTES -- Each Bank's subject revolving credit
         loan and participation in respect of additional subject LCs and
         existing subject LCs shall be evidenced by subject notes executed and
         delivered by Borrower, payable to the order of that Bank aggregating in
         the principal amount equal to the dollar amount of that Bank's
         aggregate subject commitment therefor set forth in Section 2A.01. Each
         subject note shall be in the form and substance of EXHIBIT 2B.01 with
         the blanks appropriately filled. Each of the subject term loans by each
         Bank shall be evidenced by a separate subject note executed and
         delivered by Borrower, payable to the order of the Bank in principal
         amount equal to the dollar amount of the Bank's subject commitment
         therefor; each such note shall be in form and substance of EXHIBIT
         2B.01T with the blanks appropriately filled.

                           (a) Whenever Borrower obtains a series of subject
                           loans pursuant to this Agreement, each Bank shall
                           make an appropriate entry into a loan account
                           maintained in that Bank's books and records. Each
                           entry shall be prima facie evidence of the data so
                           entered; but such entries shall not be a condition to
                           Borrower's obligation to pay.

                           (b) No holder of any subject note shall transfer a
                           subject note, or seek a judgment or file a proof of
                           claim based on a subject note without in each case
                           first endorsing the subject note to reflect the true
                           amount owing thereon.

                  2B.02 LOAN MIX -- The subject loans at any one time
         outstanding shall consist of prime rate loans or LIBOR loans or any
         combination thereof as Borrower may from time to time duly elect;
         PROVIDED, that the subject term loans shall at all times consist of
         only prime rate loans or only LIBOR loans.

         8. The first sentence of subsection 2B.07(a) is amended by adding the
words "and term loans" immediately following the words "revolving credit loans".

         9. The Agreement is amended by adding the following new section 2EE
immediately following section 2E thereof:

         2EE. SECURITY FOR SUBJECT TERM LOANS -- The subject term loans shall be
secured in accordance with the following:

                  2EE.01 SUBJECT TERM LOANS -- Payment of the subject term loans
         shall be secured by a first priority lien and security interest in all
         of Borrower's land, buildings and equipment located in Bettendorf,
         Iowa.

                  2EE.02 SECURITY DOCUMENTS -- Borrower agrees to execute and
         deliver to NCB-Agent such mortgages, security agreements, UCC financing
         statements and other documents to effect the provisions of Section 2EE
         as NCB-Agent, or a majority of the Banks, may from time to time
         reasonably request including, without limitation, such as are
         identified on EXHIBIT 2EE.02. Borrower agrees to pay the reasonable and
         necessary out of pocket expenses of NCB-Agent incurred with the filing
         and perfection of the security interests and liens to be granted
         pursuant to this Section 2EE.

                  2EE.03 ENVIRONMENTAL INDEMNITY -- Borrower agrees to execute
         and deliver to NCB-Agent an agreement protecting the Banks and
         NCB-Agent from liability

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         for environmental claims relating to the property subject to mortgages
         that are to secure the subject term loans. Such agreement shall be in
         form and substance reasonably satisfactory to the Banks and NCB-Agent.

         10. The Agreement is amended by adding the following section 2FF
immediately following section 2F thereof:

         2FF.  GUARANTY OF SUBSIDIARIES OF SUBJECT TERM LOANS.

                  2FF.01 OSLI AND OSMI GUARANTY OF PAYMENT OF SUBJECT TERM LOANS
         -- Borrower shall cause its wholly-owned subsidiaries, OSLI and OSMI,
         to unconditionally guarantee payment of the subject term loans pursuant
         to a guaranty of payment, through a supplement to the subject guaranty
         in the form attached hereto as EXHIBIT 2FF.01S, executed and delivered
         to the Banks by OSLI and OSMI and pursuant to such additional
         supplements to the subject guarantee as NCB-Agent may require with
         respect to increases in the subject commitments for the subject
         revolving credit and term loans.

         11. Subsection 3D.02 BORROWINGS of the Agreement shall be deleted in
its entirety and the following shall be substituted in place thereof:

                  3D.02 BORROWINGS -- Borrower will not, nor permit OSLI or OSMI
         to create, assume or have outstanding at any time any indebtedness for
         borrowed money (or become a guarantor in respect to any indebtedness
         for borrowed money) the incurrence of which would create a default
         under this Agreement, including, without limitation, a default under
         section 3B.01 or 3B.02.

         12. Subprovision (c) of subsection 3D.03 LIENS of the Credit Agreement
is amended by deleting the word "or" at the end of item (ix) thereof,
substituting ", or" for the period at the end of item (x) thereof and adding the
following new item (xi) immediately following item (x) thereof:

                  (xi)     any mortgage, security interest or other lien that is
                           confined to real property or equipment that is not
                           already encumbered by a lien in favor of the Banks
                           and the value of which in the aggregate, excluding
                           any such property or equipment that secures any
                           indebtedness in respect of leases. does not at any
                           time exceed twenty-five percent (25%) of the net
                           worth of Borrower less the amount of Borrower's
                           intangible assets, on a consolidated basis.

         13. Subsection 3D.04 FIXED ASSETS of the Agreement shall be deleted in
its entirety and the following shall be substituted in place thereof:

                  3D.04 FIXED ASSETS -- Borrower will not, nor permit OSLI or
         OSMI to, invest (net after trade-ins, if any) in any fiscal year in
         fixed assets and leasehold improvements during any fiscal year
         (commencing with the year 1997) more than fifteen million dollars
         ($15,000,000) but excluding for this purpose any investment (including
         any investment of the proceeds of the subject term loans) in fixed
         assets related to the Iowa Mill Project or the purchase of fixed assets
         from Southeastern Metal Processing, Inc. or Southeastern Transshipping
         Realty.

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         14. Subsection 7B.07 ACTIONS REQUIRING CONSENT OF A MAJORITY OF THE
BANKS of the Agreement shall be deleted in its entirety and the following shall
be substituted in lieu thereof:

                  7B.07 ACTIONS REQUIRING CONSENT OF A MAJORITY OF THE BANKS --
         The approval of a majority of the Banks is required to amend or waive
         any of the provisions of Sections 3A, 3B, 3C and 3D of this Agreement,
         except subsection 3D.03(c)(xi).

         15. Subsection 7B.08 ACTIONS REQUIRING CONSENT OF ALL BANKS of the
Credit Agreement shall be deleted in its entirety and the following shall be
substituted in lieu thereof:

                  7B.08 ACTIONS REQUIRING CONSENT OF ALL BANKS --
         Notwithstanding any other provisions of this Agreement, all of the
         Banks must approve any waiver or amendment to this Agreement which
         would (i) extend the expiration date; (ii) extend the date on which any
         subject indebtedness is due; (iii) reduce any interest rate,
         commission, commitment fee or other amount payable by Borrower
         hereunder; (iv) increase any Bank's subject commitment; (v) change the
         percentage of the Banks whose approval is required to take any action
         hereunder; (vi) change any of the provisions of subsections 2D.02 and
         5A.04; (vii) release any collateral securing the subject loans; (viii)
         release or modify the subject guaranty; or (ix) change any of the
         provisions of subsection 3D.03(c)(xi).

         16. Section 9 DEFINITIONS of the Agreement is amended by adding the
following new definitions thereto:

                  EQUIPMENT means, collectively, all goods, merchandise,
                  machinery and equipment and other personal property used or
                  purchased for use primarily in Borrower's business (excluding
                  inventory) wherever located;

                  RELATED WRITING means any note, mortgage, guaranty, security
                  agreement, other lien instrument, financial statement, audit
                  report, notice, legal opinion, credit request, officer's
                  certificate or other writing of any kind which is executed by
                  Borrower or OSLI or OSMI, or certified or signed by one or
                  more of its officers, auditors or counsel, and is delivered to
                  the Banks and NCB-Agent or any thereof pursuant to this
                  Agreement or any related writing and includes, without
                  limitation, the subject notes and the other writings referred
                  to in Sections 2A, 2B, 2C, 2D, 2E, 3A and 4A;

                  SERIES A SUBJECT TERM LOANS means the term loans obtained
                  pursuant to subsection 2A.01.1 of this Agreement;

                  SUBJECT GUARANTY means the guaranty of payment executed and
                  delivered by OSLI or OSMI pursuant to subsection 2F.01, as
                  supplemented from time to time.

                  SUBJECT NOTE means a note executed and delivered hereunder by
                  Borrower and being in the form and substance of Exhibit 2B.01
                  or 2B.OIT with the blanks appropriately filled;

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                  SUBJECT TERM LOAN means a subject loan obtained by Borrower
                  that is not a subject revolving credit loan.

         17. Exhibits 2A.03, 2A.05 and 2B.01 to the Agreement shall be deleted
in their entirety and replaced by the attached new Exhibits 2A.03, 2A.05 and
2B.01, respectively, and the attached new Exhibits 2B.01T, 2EE.02 and 2FF.01 S
are hereby added to the Agreement.

         18. Prior to or at the execution and delivery of this Second Amendment,
Borrower shall have complied or caused compliance with each of the following:

                  (a) Borrower shall have executed and delivered to each Bank a
subject revolving credit loan note in principal amount equal to the dollar
amount of such Bank's aggregate subject commitment therefor in Subsection 2A.01
in the form comparable to EXHIBIT 2B.01 of the Agreement with the blanks
appropriated completed.

                  (b) Borrower shall have executed and delivered series A
subject term loan notes to each Bank in accordance with subsection 2B.01.

                  (c) OSLI and OSMI shall each have executed and delivered to
NCB-Agent a supplement to its subject guaranty in the form attached as EXHIBIT
2FF.01S.

                  (d) Borrower's secretary shall have certified to each Bank
resolutions duly adopted by Borrower's board of directors in respect of this
Second Amendment and the matters contemplated hereby and authorizing execution,
delivery and performance of this Second Amendment and the subject notes and the
security and other documents to be delivered by Borrower pursuant to this Second
Amendment.

                  (e) The secretary of OSLI and OSMI shall have certified to
each Bank resolutions duly adopted by OSLI's and OSMI's boards of directors
authorizing the execution, delivery and performance of the supplements to the
subject guaranties to be delivered pursuant to this Second Amendment.

         19. Following completion of the Iowa Mill Project, Borrower shall
promptly obtain an appraisal of the land, buildings and equipment that are part
of the Iowa Mill Project from an appraiser or appraisers acceptable to Bank and
shall deliver such appraisal to NCB-Agent.

         20. From and after the effective date of this Second Amendment,
references in the Agreement and the subject notes (as each of the foregoing has
been amended by the First Amendment and this Second Amendment or pursuant to
such amendments) to (i) the Agreement shall be deemed to be references to the
Agreement as amended by the First Amendment and this Second Amendment (unless
otherwise expressly indicated) and (ii) the subject notes shall be deemed to
include the supplemental revolving credit and series A subject term loan notes
executed and delivered pursuant hereto.

         21. Borrower restates and reaffirms all of its representations and
warranties set forth in Section 4B of the Agreement as of the date hereof.

         22. This Second Amendment and the modifications set forth herein shall
be and become effective as of the date hereof.

         23. This Second Amendment may be executed in one or more counterparts,
each counterpart to be executed by Borrower, by NCB-Agent and by one or more or
all of the Banks. Each such executed counterpart shall be deemed to be an
executed original for all purposes but

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all such counterparts taken together shall constitute one agreement, which
agreement constitutes the entire agreement among the parties hereto with respect
to the subject matter hereof.

         24. This Second Amendment may be executed by representatives of the
Banks using facsimile signatures and facsimilied signature pages shall in all
respects be binding on all parties hereto and thereto as if such signature pages
were originally delivered. Original signature pages for all facsimilied
signature pages shall be delivered to the parties hereto not later than June 6,
1997.

         IN WITNESS WHEREOF, the parties have executed this Second Amendment as
of the date first above written.

NATIONAL CITY BANK, AGENT                       OLYMPIC STEEL, INC.

By: /s/ Donald B. Hayes, Jr.                   By: /s/ Richard T. Marabito
   ----------------------------                    -----------------------------
     Donald B. Hayes, Jr.                             Richard T. Marabito
     Vice President                                   Treasurer

NATIONAL CITY BANK

By: /s/ Donald B. Hayes, Jr.
   ---------------------------
      Donald B. Hayes, Jr.
      Vice President

COMERICA BANK

By: /s/ Brian T. Dragon
   ---------------------------
     Brian T. Dragon
     Account Officer

MELLON BANK, N.A.

By: /s/ Richard K. James
   ---------------------------
     Richard K. James
     Vice President

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