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                                                                    Exhibit 31.2

                      CERTIFICATION PURSUANT TO SECTION 302
                        OF THE SARBANES-OXLEY ACT OF 2002

      I, Kerry A. Shiba, certify that:

      1     I have reviewed this report on Form 10-Q of Kaiser Aluminum &
Chemical Corporation;

      2     Based on my knowledge, this report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this report;

      3     Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all material respects the
financial condition, results of operations and cash flows of the registrant as
of, and for, the periods presented in this report;

      4     The registrant's other certifying officers and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) [text omitted in accordance with SEC
transition instructions set forth in SEC Release No. 34-47986] for the
registrant and we have:

            a)    designed such disclosure controls and procedures, or caused
                  such disclosure controls and procedures to be designed under
                  our supervision, to ensure that material information relating
                  to the registrant, including its consolidated subsidiaries, is
                  made known to us by others within those entities, particularly
                  during the period in which this report is being prepared;

            b)    [paragraph omitted in accordance with SEC transition
                  instructions set forth in SEC Release No. 34-47986]

            c)    evaluated the effectiveness of the registrant's disclosure
                  controls and procedures and presented in this report our
                  conclusions about the effectiveness of the disclosure controls
                  and procedures as of the end of the period covered by this
                  report based on such evaluation; and

            d)    disclosed in this report any changes in the registrant's
                  internal control over financial reporting that occurred during
                  the registrant's most recent fiscal quarter (the registrant's
                  fourth fiscal quarter in the case of an annual report) that
                  has materially affected, or is reasonably likely to materially
                  affect, the registrant's internal control over financial
                  reporting.

      5.    The registrant's other certifying officers and I have disclosed,
based on our most recent evaluation of internal control over financial
reporting, to the registrant's auditors and the audit committee of the
registrant's board of directors (or persons performing the equivalent function):

            a)    all significant deficiencies and material weaknesses in the
                  design or operation of internal control over financial
                  reporting which are reasonably likely to adversely affect the
                  registrant's ability to record, process, summarize and report
                  financial information; and

            b)    any fraud, whether or not material, that involves management
                  or other employees who have a significant role in the
                  registrant's internal control over financial reporting.

Date: November 12, 2004                    /s/ Kerry A. Shiba
                                           -----------------------
                                           Kerry A. Shiba
                                           Chief Financial Officer

A signed original of this written statement required by Section 302 has been
provided to Kaiser Aluminum & Chemical Corporation and will be retained by
Kaiser Aluminum & Chemical Corporation and furnished to the Securities and
Exchange Commission or its staff upon request.

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