<PAGE>   1
       As filed with the Securities and Exchange Commission June 27, 1996
                                                                   File No. 333-
- --------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM S-8
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933


                               RYERSON TULL, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

         DELAWARE                                  36-3431962
 (STATE OR OTHER JURISDICTION          (I.R.S. EMPLOYER IDENTIFICATION NO.)    
OF INCORPORATION OR ORGANIZATION)

   2621 WEST 15TH PLACE                            60608
    CHICAGO, ILLINOIS                           (ZIP CODE) 
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)


                                    

              REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE:
                                 (312) 762-2121

                                  RYERSON TULL
                           DIRECTORS' COMPENSATION PLAN
                            (FULL TITLE OF THE PLAN)

                              CHARLES B. SALOWITZ
                                   SECRETARY
                             30 WEST MONROE STREET
                            CHICAGO, ILLINOIS 60603
                                 (312) 346-0300
                              (AGENT FOR SERVICE)


                        CALCULATION OF REGISTRATION FEE


<TABLE>
<CAPTION>
==========================================================================================================
                                            Proposed Maximum      Proposed Maximum
Title of Securities   Amount to be          Offering Price Per    Aggregate Offering    Amount of
to be Registered      Registered            Share*                Price*                Registration Fee
- ----------------------------------------------------------------------------------------------------------
<S>                   <C>                   <C>                   <C>                   <C>
Class A Common 
Stock, $1.00
par value,
including preferred
share purchase
rights) ..........      100,000 Shares           $16.00             $1,600,000            $551.72
==========================================================================================================
</TABLE>

       * Estimated solely for the purpose of computing the registration fee
         on the basis of the average of the high and low prices for the Common
         Stock as reported on the New York Stock Exchange June 24, 1996.
- --------------------------------------------------------------------------------


<PAGE>   2



                                   Part II


                            INFORMATION REQUIRED IN
                           THE REGISTRATION STATEMENT

ITEM 3.  INCORPORATION OF DOCUMENTS BY REFERENCE.

     The following documents, which have heretofore been filed by Ryerson Tull,
Inc. (the "Company" or "Registrant") with the Securities and Exchange
Commission are incorporated by reference herein and shall be deemed to be a
part hereof:

            (a) The description of Class A Common Stock, $1.00 par value
                per share, and associated preferred share purchase rights,
                included in the Company's Registration Statements on Form 8-A
                filed with the Commission on May 24, 1996 (File No. 1-11767);

            (b) Prospectus dated June 20, 1996 filed with the Commission
                under Rule 424(b)(4) (File No. 333-3229).

All documents subsequently filed by the Company pursuant to Sections 13(a),
13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended (the
"Exchange Act"), prior to the filing of a post-effective amendment which
indicates that all securities offered have been sold or which deregisters all
securities then remaining unsold, shall be deemed to be incorporated herein by
reference and shall be deemed a part hereof from the date of filing of such
documents.

ITEM 4.  DESCRIPTION OF SECURITIES.

         Not applicable.

ITEM 5.  INTERESTS OF NAMED EXPERTS AND COUNSEL.

The validity of the issuance of the shares of Common Stock registered hereunder
will be passed upon for the Company by George A. Ranney, Jr., the Vice
President and General Counsel of Inland Steel Industries, Inc. ("ISI"), the
majority stockholder of the Company.  Mr. Ranney is also a partner in the law
firm of Mayer, Brown & Platt.  As of June 1, 1996, Mr. Ranney owned 7,300
shares of ISI's common stock and also held options to purchase 48,000 shares of
ISI's common stock, of which none are currently exercisable.


ITEM 6.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     (a) The Delaware GCL (Section 145) (i) gives Delaware corporations broad
power to indemnify their present and former directors, officers, employees and
agents and those of affiliated corporations against expenses (including
attorneys' fees), judgments, fines and amounts paid in settlement actually and
reasonably incurred by him or her in connection with the defense of any lawsuit
or proceeding to which they are made parties by reason of being or having been
such directors, officers, employees or agents if such person acted in good
faith and in a manner he or she reasonably believed to be in and not opposed to
the best interests of the corporation; (ii) gives corporations power to
indemnify any person who was or is a party or is threatened to be made a party
to a lawsuit or proceeding by or in the right of the corporation by reason of
the fact that such person is or was a director, officer, employee or agent of
the corporation or an affiliated corporation against expenses (including
attorneys' fees) actually and reasonable incurred by such person in the defense
or settlement of such action if such person acted in good faith and in a manner
he or she reasonably believed to be in and not opposed to the best interests of
the 
<PAGE>   3

        corporation and except that no indemnification may be made in respect
of any action as to which such person shall 

have been adjudged to be liable to the corporation unless only to the
extent that a court determines upon application that such person is fairly and
reasonably entitled to indemnity for such expenses which such court deems
proper; (iii) gives a director, officer, employee or agent who successfully
defends an action the right to be so indemnified for expenses (including
attorneys' fees) actually and reasonably incurred by such director, officer,
employee or agent; and (iv) authorizes the Registrant to buy directors' and
officers' liability insurance.  Such indemnification is not exclusive to any
other rights to which those indemnified may be entitled under any by-laws,
agreement, vote of stockholders or disinterested directors or otherwise.

     (b) Article XI of the Registrant's Certificate of Incorporation and
Article VI of the By-Laws of the Registrant provides for indemnification of
directors, officers, employees and agents to the fullest extent not prohibited
by law.

     (c) In accordance with Section 102(b)(7) of the Delaware GCL, the
Registrant's Certificate of Incorporation provides that directors shall not be
liable for monetary damages for breaches of their fiduciary duty as directors
except to the extent such exemption from liability or limitation thereof is not
permitted under the Delaware GCL as the same exists or may be amended.

ITEM 7.  EXEMPTION FROM REGISTRATION CLAIMED.

         Not applicable.

ITEM 8.  EXHIBITS.

         See Index to Exhibits.

ITEM 9.  UNDERTAKINGS.

A.  Rule 415 Offering.

     The undersigned registrant hereby undertakes:

                 1. To file, during any period in which offers or sales are
                    being made, a post-effective amendment to this registration
                    statement:

                        (i) To include any prospectus required by section
                        10(a)(3) of the Securities Act of 1933;

                        (ii) To reflect in the prospectus any facts or events
                        arising after the effective date of the registration
                        statement (or the most recent post-effective amendment
                        thereof) which, individually or in the aggregate,
                        represent a fundamental change in the information set
                        forth in the registration statement;

                        (iii) To include any material information with respect
                        to the plan of distribution not previously disclosed in
                        the registration statement or any material change to
                        such information in the registration statement;

                        Provided, however, that paragraphs (A)(1)(i) and
                        (A)(1)(ii) do not apply if the registration statement
                        is on Form S-3 or Form S-8, and the information
                        required to be included in a post-effective amendment
                        by those paragraphs is contained in 

<PAGE>   4


                  periodic reports filed by the registrant pursuant to section
                  13 or section 15(d) of the Exchange Act that are incorporated
                  by reference in the registration statement. 

        2.     That, for the purpose of determining any liability under
               the Securities Act of 1933, each such post-effective amendment
               shall be deemed to be a new registration statement relating to
               the securities offered therein, and the offering of such
               securities at that time shall be deemed to be the initial bona
               fide offering thereof.

        3.     To remove from registration by means of a post-effective
               amendment any of the securities being registered which remain
               unsold at the termination of the offering.

 B.        Filings Incorporating Subsequent Exchange Act Documents
           by Reference.

     The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to section 13(a) or section 15(d) of the
Exchange Act (and, where applicable, each filing of an employee benefit plan's
annual report pursuant to section 15(d) of the Exchange Act) that is
incorporated by reference in the registration statement shall be deemed to be a
new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

 C.        Indemnification of Directors and Officers.

     Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the registrant pursuant to the provisions of the registrant's restated
certificate of incorporation or by-laws or otherwise, the registrant has been
advised that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in the Securities Act of
1933 and is, therefore, unenforceable.  In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the
Securities Act of 1933 and will be governed by the final adjudication of such
issue.




<PAGE>   5



                                  SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-8 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Chicago, State of Illinois, on June 20, 1996.

                                            RYERSON TULL, INC.

                                            By /S/ Jay M. Gratz
                                               -----------------
                                              Jay M. Gratz
                                              Vice President, Finance and Chief
                                                   Financial Officer

     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed below by the following persons in the
capacities and on June 20, 1996.

        
   Signature                                   Title


 /S/ Neil S. Novich         President, Chief Executive Officer and Director     
  -----------------------                            
     Neil S. Novich            
                                          

 /S/ Jay M. Gratz           Vice President, Finance and Chief Financial Officer
   ----------------------
     Jay M. Gratz                  


 /S/ Lily L. May            Controller
  -----------------------                                
     Lily L. May 


 * Robert J. Darnall        Chairman of the Board 
 ------------------------
   Robert J. Darnall
                                          


 * James A. Henderson       Director
 ------------------------
   James A. Henderson
                                          


 * Donald S. Perkins        Director
 ------------------------
   Donald S. Perkins
                                          


 * Jean-Pierre Rosso        Director
   ----------------------
   Jean-Pierre Rosso
                                          

 *By/S/ George A. Ranney,Jr.
  --------------------------
        George A. Ranney, Jr.
          Attorney-in-fact   
                             






<PAGE>   6




                               INDEX TO EXHIBITS


<TABLE>
<CAPTION>

Exhibit                                                                          Sequential
Number   Description of Document                                                 Page Number
- -------  --------------------------------                                        -----------
<S>      <C>                                                                     <C>
3.1      Restated Certificate of Incorporation of the Registrant
         (Incorporated by reference to Exhibit 3.1 to the Registrant's
         Registration Statement on Form S-1, File No. 333-3229)

3.2      Restated By-Laws of the Registrant (Incorporated by reference
         to Exhibit 3.2 to the Registrant's Registration Statement on
         Form S-1, File No. 333-3229)

4        Ryerson Tull Directors' Compensation Plan (Incorporated by 
         reference to Exhibit 10.9 to the Registrant's Registration 
         Statement on Form S-1, File No. 333-3229)

5        Opinion of George A. Ranney, Jr. .....................................

23.1     Consent of Price Waterhouse LLP  .....................................

23.2     Consent of George A. Ranney, Jr. (included in his opinion
         filed as Exhibit 5 hereto)

24       Powers of Attorney ...................................................



</TABLE>
[{"type": "S-8", "sequence": "1", "description": "FORM S-8", "secsgml_size_bytes": 15853}]
{"company-data": {"conformed-name": "RYERSON TULL INC", "cik": "0001013595", "assigned-sic": "5050", "irs-number": "363431962", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-06977", "film-number": "96586970"}, "business-address": {"street1": "2621 WEST 15TH PLACE", "city": "CHICAGO", "state": "IL", "zip": "60608", "phone": "3127622121"}}
1
       As filed with the Securities and Exchange Commission June 27, 1996
                                                                   File No. 333-
- --------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM S-8
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933

                               RYERSON TULL, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

         DELAWARE                                  36-3431962
 (STATE OR OTHER JURISDICTION          (I.R.S. EMPLOYER IDENTIFICATION NO.)    
OF INCORPORATION OR ORGANIZATION)

   2621 WEST 15TH PLACE                            60608
    CHICAGO, ILLINOIS                           (ZIP CODE) 
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)

                                    

              REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE:
                                 (312) 762-2121

                                  RYERSON TULL
                           DIRECTORS' COMPENSATION PLAN
                            (FULL TITLE OF THE PLAN)

                              CHARLES B. SALOWITZ
                                   SECRETARY
                             30 WEST MONROE STREET
                            CHICAGO, ILLINOIS 60603
                                 (312) 346-0300
                              (AGENT FOR SERVICE)

                        CALCULATION OF REGISTRATION FEE
==========================================================================================================
                                            Proposed Maximum      Proposed Maximum
Title of Securities   Amount to be          Offering Price Per    Aggregate Offering    Amount of
to be Registered      Registered            Share*                Price*                Registration Fee
- ----------------------------------------------------------------------------------------------------------
Class A Common 
Stock, $1.00
par value,
including preferred
share purchase
rights) ..........      100,000 Shares           $16.00             $1,600,000            $551.72
==========================================================================================================
* Estimated solely for the purpose of computing the registration fee
         on the basis of the average of the high and low prices for the Common
         Stock as reported on the New York Stock Exchange June 24, 1996.
- --------------------------------------------------------------------------------
2

                                   Part II

                            INFORMATION REQUIRED IN
                           THE REGISTRATION STATEMENT

ITEM 3.  INCORPORATION OF DOCUMENTS BY REFERENCE.

     The following documents, which have heretofore been filed by Ryerson Tull,
Inc. (the "Company" or "Registrant") with the Securities and Exchange
Commission are incorporated by reference herein and shall be deemed to be a
part hereof:

            (a) The description of Class A Common Stock, $1.00 par value
                per share, and associated preferred share purchase rights,
                included in the Company's Registration Statements on Form 8-A
                filed with the Commission on May 24, 1996 (File No. 1-11767);

            (b) Prospectus dated June 20, 1996 filed with the Commission
                under Rule 424(b)(4) (File No. 333-3229).

All documents subsequently filed by the Company pursuant to Sections 13(a),
13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended (the
"Exchange Act"), prior to the filing of a post-effective amendment which
indicates that all securities offered have been sold or which deregisters all
securities then remaining unsold, shall be deemed to be incorporated herein by
reference and shall be deemed a part hereof from the date of filing of such
documents.

ITEM 4.  DESCRIPTION OF SECURITIES.

         Not applicable.

ITEM 5.  INTERESTS OF NAMED EXPERTS AND COUNSEL.

The validity of the issuance of the shares of Common Stock registered hereunder
will be passed upon for the Company by George A. Ranney, Jr., the Vice
President and General Counsel of Inland Steel Industries, Inc. ("ISI"), the
majority stockholder of the Company.  Mr. Ranney is also a partner in the law
firm of Mayer, Brown & Platt.  As of June 1, 1996, Mr. Ranney owned 7,300
shares of ISI's common stock and also held options to purchase 48,000 shares of
ISI's common stock, of which none are currently exercisable.

ITEM 6.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     (a) The Delaware GCL (Section 145) (i) gives Delaware corporations broad
power to indemnify their present and former directors, officers, employees and
agents and those of affiliated corporations against expenses (including
attorneys' fees), judgments, fines and amounts paid in settlement actually and
reasonably incurred by him or her in connection with the defense of any lawsuit
or proceeding to which they are made parties by reason of being or having been
such directors, officers, employees or agents if such person acted in good
faith and in a manner he or she reasonably believed to be in and not opposed to
the best interests of the corporation; (ii) gives corporations power to
indemnify any person who was or is a party or is threatened to be made a party
to a lawsuit or proceeding by or in the right of the corporation by reason of
the fact that such person is or was a director, officer, employee or agent of
the corporation or an affiliated corporation against expenses (including
attorneys' fees) actually and reasonable incurred by such person in the defense
or settlement of such action if such person acted in good faith and in a manner
he or she reasonably believed to be in and not opposed to the best interests of
the
3

        corporation and except that no indemnification may be made in respect
of any action as to which such person shall 

have been adjudged to be liable to the corporation unless only to the
extent that a court determines upon application that such person is fairly and
reasonably entitled to indemnity for such expenses which such court deems
proper; (iii) gives a director, officer, employee or agent who successfully
defends an action the right to be so indemnified for expenses (including
attorneys' fees) actually and reasonably incurred by such director, officer,
employee or agent; and (iv) authorizes the Registrant to buy directors' and
officers' liability insurance.  Such indemnification is not exclusive to any
other rights to which those indemnified may be entitled under any by-laws,
agreement, vote of stockholders or disinterested directors or otherwise.

     (b) Article XI of the Registrant's Certificate of Incorporation and
Article VI of the By-Laws of the Registrant provides for indemnification of
directors, officers, employees and agents to the fullest extent not prohibited
by law.

     (c) In accordance with Section 102(b)(7) of the Delaware GCL, the
Registrant's Certificate of Incorporation provides that directors shall not be
liable for monetary damages for breaches of their fiduciary duty as directors
except to the extent such exemption from liability or limitation thereof is not
permitted under the Delaware GCL as the same exists or may be amended.

ITEM 7.  EXEMPTION FROM REGISTRATION CLAIMED.

         Not applicable.

ITEM 8.  EXHIBITS.

         See Index to Exhibits.

ITEM 9.  UNDERTAKINGS.

A.  Rule 415 Offering.

     The undersigned registrant hereby undertakes:

                 1. To file, during any period in which offers or sales are
                    being made, a post-effective amendment to this registration
                    statement:

                        (i) To include any prospectus required by section
                        10(a)(3) of the Securities Act of 1933;

                        (ii) To reflect in the prospectus any facts or events
                        arising after the effective date of the registration
                        statement (or the most recent post-effective amendment
                        thereof) which, individually or in the aggregate,
                        represent a fundamental change in the information set
                        forth in the registration statement;

                        (iii) To include any material information with respect
                        to the plan of distribution not previously disclosed in
                        the registration statement or any material change to
                        such information in the registration statement;

                        Provided, however, that paragraphs (A)(1)(i) and
                        (A)(1)(ii) do not apply if the registration statement
                        is on Form S-3 or Form S-8, and the information
                        required to be included in a post-effective amendment
                        by those paragraphs is contained in
4

                  periodic reports filed by the registrant pursuant to section
                  13 or section 15(d) of the Exchange Act that are incorporated
                  by reference in the registration statement. 

        2.     That, for the purpose of determining any liability under
               the Securities Act of 1933, each such post-effective amendment
               shall be deemed to be a new registration statement relating to
               the securities offered therein, and the offering of such
               securities at that time shall be deemed to be the initial bona
               fide offering thereof.

        3.     To remove from registration by means of a post-effective
               amendment any of the securities being registered which remain
               unsold at the termination of the offering.

 B.        Filings Incorporating Subsequent Exchange Act Documents
           by Reference.

     The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to section 13(a) or section 15(d) of the
Exchange Act (and, where applicable, each filing of an employee benefit plan's
annual report pursuant to section 15(d) of the Exchange Act) that is
incorporated by reference in the registration statement shall be deemed to be a
new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

 C.        Indemnification of Directors and Officers.

     Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the registrant pursuant to the provisions of the registrant's restated
certificate of incorporation or by-laws or otherwise, the registrant has been
advised that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in the Securities Act of
1933 and is, therefore, unenforceable.  In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the
Securities Act of 1933 and will be governed by the final adjudication of such
issue.
5

                                  SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-8 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Chicago, State of Illinois, on June 20, 1996.

                                            RYERSON TULL, INC.

                                            By /S/ Jay M. Gratz
                                               -----------------
                                              Jay M. Gratz
                                              Vice President, Finance and Chief
                                                   Financial Officer

     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed below by the following persons in the
capacities and on June 20, 1996.

        
   Signature                                   Title

 /S/ Neil S. Novich         President, Chief Executive Officer and Director     
  -----------------------                            
     Neil S. Novich            
                                          

 /S/ Jay M. Gratz           Vice President, Finance and Chief Financial Officer
   ----------------------
     Jay M. Gratz                  

 /S/ Lily L. May            Controller
  -----------------------                                
     Lily L. May 

 * Robert J. Darnall        Chairman of the Board 
 ------------------------
   Robert J. Darnall
                                          

 * James A. Henderson       Director
 ------------------------
   James A. Henderson
                                          

 * Donald S. Perkins        Director
 ------------------------
   Donald S. Perkins
                                          

 * Jean-Pierre Rosso        Director
   ----------------------
   Jean-Pierre Rosso
                                          

 *By/S/ George A. Ranney,Jr.
  --------------------------
        George A. Ranney, Jr.
          Attorney-in-fact
6

                               INDEX TO EXHIBITS
Exhibit                                                                          Sequential
Number   Description of Document                                                 Page Number
- -------  --------------------------------                                        -----------
3.1      Restated Certificate of Incorporation of the Registrant
         (Incorporated by reference to Exhibit 3.1 to the Registrant's
         Registration Statement on Form S-1, File No. 333-3229)

3.2      Restated By-Laws of the Registrant (Incorporated by reference
         to Exhibit 3.2 to the Registrant's Registration Statement on
         Form S-1, File No. 333-3229)

4        Ryerson Tull Directors' Compensation Plan (Incorporated by 
         reference to Exhibit 10.9 to the Registrant's Registration 
         Statement on Form S-1, File No. 333-3229)

5        Opinion of George A. Ranney, Jr. .....................................

23.1     Consent of Price Waterhouse LLP  .....................................

23.2     Consent of George A. Ranney, Jr. (included in his opinion
         filed as Exhibit 5 hereto)

24       Powers of Attorney ...................................................