United States securities and exchange commission logo February 3, 2021 Edward J. Lehner President and Chief Executive Officer Ryerson Holding Corp 227 W. Monroe St., 27th Floor Chicago, Illinois 60606 Re: Ryerson Holding Corp Registration Statement on Form S-3 Filed January 29, 2021 File No. 333-252568 Dear Mr. Lehner: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Scott Anderegg at 202-551-3342 with any questions. Sincerely, Division of Corporation Finance Office of Trade & Services