NOTICE OF GUARANTEED DELIVERY FOR TENDER OF ANY AND ALL OUTSTANDING 9 1/2% FIRST MORTGAGE NOTES DUE 2008 (PRINCIPAL AMOUNT $1,000 PER FIRST MORTGAGE NOTE) OF BAYOU STEEL CORPORATION This Notice of Guaranteed Delivery, or one substantially equivalent to this form, must be used to accept the Exchange Offer (as defined below) if (i) certificates for the Company's (as defined below) 9 1/2% First Mortgage Notes due 2008 (the "Old First Mortgage Notes") are not immediately available, (ii) Old First Mortgage Notes, the Letter of Transmittal and all other required documents cannot be delivered to First National Bank of Commerce (the "Exchange Agent") on or prior to 5:00 p.m., New York City time, on the Expiration Date (as defined in the Prospectus referred to below) or (iii) the procedures for delivery by book-entry transfer cannot be completed on a timely basis. This Notice of Guaranteed Delivery may be delivered by hand, overnight courier or mail, or transmitted by facsimile transmission, to the Exchange Agent. See "The Exchange Offer--Exchange Offer Procedures" in the Prospectus. In addition, in order to utilize the guaranteed delivery procedure to tender Old First Mortgage Notes pursuant to the Exchange Offer, a completed, signed and dated Letter of Transmittal relating to Old First Mortgage Notes (or facsimile thereof) must also be received by the Exchange Agent prior to 5:00 p.m., New York City time, on the Expiration Date. Capitalized terms not defined herein have the meanings assigned to them in the Prospectus. The Exchange Agent For The Exchange Offer Is: First National Bank of Commerce In New York: By Hand By Registered or Delivery/Overnight Certified Mail: Delivery: First National Bank of First National Bank of First National Bank of Commerce Commerce Commerce c/o First Chicago Trust Corporate Trust Services Corporate Trust Services Company Department Department 14 Wall Street, 8th 210 Baronne Street, P.O. Box 60030 Floor, Suite 4607 Basement Level New Orleans, Louisiana New York, New York 10002 New Orleans, Louisiana 70160-0030 70112 Attn: Teri Lucas Attn: Teri Lucas Via Facsimile: (504) 623-1095 Confirm by telephone: (504) 623-7579 For Information Call: (504) 623-1640 DELIVERY OF THIS NOTICE OF GUARANTEED DELIVERY TO AN ADDRESS OTHER THAN AS SET FORTH ABOVE OR TRANSMISSION OF THIS NOTICE OF GUARANTEED DELIVERY VIA FACSIMILE TO A NUMBER OTHER THAN AS SET FORTH ABOVE WILL NOT CONSTITUTE A VALID DELIVERY. THIS NOTICE OF GUARANTEED DELIVERY IS NOT TO BE USED TO GUARANTEE SIGNATURES. IF A SIGNATURE ON A LETTER OF TRANSMITTAL IS REQUIRED TO BE GUARANTEED BY AN "ELIGIBLE INSTITUTION" UNDER THE INSTRUCTIONS THERETO, SUCH SIGNATURE GUARANTEE MUST APPEAR IN THE APPLICABLE SPACE PROVIDED IN THE SIGNATURE BOX ON THE LETTER OF TRANSMITTAL. Ladies and Gentlemen: The undersigned hereby tenders to Bayou Steel Corporation, a Delaware company (the "Company"), upon the terms and subject to the conditions set forth in the Prospectus dated , 1998 (as the same may be amended or supplemented from time to time, the "Prospectus"), and the related Letter of Transmittal (which together constitute the "Exchange Offer"), receipt of which is hereby acknowledged, the aggregate principal amount of Old First Mortgage Notes set forth below pursuant to the guaranteed delivery procedures set forth in the Prospectus under the caption "The Exchange Offer--Exchange Offer Procedures." The undersigned understands and acknowledges that the Exchange Offer will expire at 5:00 p.m., New York City time, on , 1998, unless extended by the Company. With respect to the Exchange Offer, "Expiration Date" means such time and date, or if the Exchange Offer is extended, the latest time and date to which the Exchange Offer is so extended by the Issuer. All authority herein conferred or agreed to be conferred by this Notice of Guaranteed Delivery shall survive the death or incapacity of the undersigned and every obligation of the undersigned under this Notice of Guaranteed Delivery shall be binding upon the heirs, personal representatives, executors, administrators, successors, assigns, trustees in bankruptcy and other legal representatives of the undersigned. DESCRIPTION OF OLD FIRST MORTGAGE NOTES TENDERED - ------------------------------------------------------------------------------- CERTIFICATE NUMBER(S) (IF KNOWN) OF OLD FIRST MORTGAGE NOTES OR AGGREGATE PRINCIPAL AMOUNT ACCOUNT NUMBER AT THE BOOK- REPRESENTED BY ENTRY TRANSFER FACILITY OLD FIRST MORTGAGE NOTES PRINCIPAL AMOUNT TENDERED - -------------------------------------------------------------------------------------- - -------------------------------------------------------------------------------------- - -------------------------------------------------------------------------------------- - -------------------------------------------------------------------------------------- TOTAL: - ------------------------------------------------------------------------------- PLEASE SIGN AND COMPLETE - ------------------------------------------------------------------------------- Signature(s): _____________________ Name(s): ____________________________ ___________________________________ _____________________________________ Address: __________________________ Capacity (full title), if signing in ___________________________________ a representative capacity: __________ (Zip Code) Area Code and Telephone Number: Taxpayer Identification or Social ___________________________________ Security Number: ____________________ Dated: ____________________________ - ------------------------------------------------------------------------------- GUARANTEE (NOT TO BE USED FOR SIGNATURE GUARANTEE) The undersigned, a firm or other entity identified in Rule 17Ad-15 under the Securities Exchange Act of 1934, as amended, as an "eligible guarantor institution," including (as such terms are defined therein): (i) a bank; (ii) a broker, dealer, municipal securities broker, municipal securities dealer, government securities broker, government securities dealer; (iii) a credit union; (iv) a national securities exchange, registered securities association or learning agency; or (v) a savings association that is a participant in a Securities Transfer Association recognized program (each of the foregoing being referred to as an "Eligible Institution"), hereby guarantees to deliver to the Exchange Agent, at one of its addresses set forth above, either the Old First Mortgage Notes tendered hereby in proper form for transfer, or confirmation of the book-entry transfer of such Old First Mortgage Notes to the Exchange Agent's account at The Depository Trust Company, pursuant to the procedures for book-entry transfer set forth in the Prospectus, in either case together with one or more properly completed and duly executed Letter(s) of Transmittal (or facsimile thereof) and any other required documents within three New York Stock Exchange trading days after the date of execution of this Notice of Guaranteed Delivery. The undersigned acknowledges that it must deliver the Letter(s) of Transmittal and the Old First Mortgage Notes tendered hereby to the Exchange Agent within the time period set forth above and that failure to do so could result in a financial loss to the undersigned. _____________________________________ (Name of Firm) Sign here: __________________________ (Authorized Signature) Name: _______________________________ (Please type or print) Title: ______________________________ _____________________________________ (Area Code and Telephone Number) _____________________________________ _____________________________________ Dated: ________________________, 1998 Address _____________________ Zip Code NOTE: DO NOT SEND CERTIFICATES FOR OLD FIRST MORTGAGE NOTES WITH THIS FORM. CERTIFICATES FOR OLD FIRST MORTGAGE NOTES SHOULD ONLY BE SENT WITH YOUR LETTER OF TRANSMITTAL.