<ARTICLE> 5
<LEGEND>
This schedule contains restated summary financial information extracted from
Union Carbide Corporation's Annual Report on Form 10-K for the years ended
December 31, 1997 and December 31, 1996, and is qualified in its entirety by
reference to such financial statements.
</LEGEND>
<RESTATED> 
<CIK> 0000100790
<NAME> UNION CARBIDE CORPORATION
<MULTIPLIER> 1,000,000
       
                                                  
<PERIOD-TYPE>                   YEAR                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1996
<PERIOD-START>                             JAN-01-1997             JAN-01-1996
<PERIOD-END>                               DEC-31-1997             DEC-31-1996
<CASH>                                              20                      57
<SECURITIES>                                         0                       0
<RECEIVABLES>                                      993                    1047
<ALLOWANCES>                                         0                       0
<INVENTORY>                                        604                     541
<CURRENT-ASSETS>                                  1866                    1873
<PP&E>                                            7707                    7159
<DEPRECIATION>                                    3927                    3750
<TOTAL-ASSETS>                                    6964                    6546
<CURRENT-LIABILITIES>                             1504                    1278
<BONDS>                                           1458                    1487
<PREFERRED-MANDATORY>                                0                     144
<PREFERRED>                                          0                       0
<COMMON>                                           155                     155
<OTHER-SE>                                        2193                    1959
<TOTAL-LIABILITY-AND-EQUITY>                      6964                    6546
<SALES>                                           6502                    6106
<TOTAL-REVENUES>                                  6502                    6106
<CGS>                                             4806                    4568
<TOTAL-COSTS>                                     4806                    4568
<OTHER-EXPENSES>                                   497<F1>                 471<F1>
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                  79                      76
<INCOME-PRETAX>                                    966                     845
<INCOME-TAX>                                       279                     236
<INCOME-CONTINUING>                                676                     593
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                           17                       0
<NET-INCOME>                                       659                     593
<EPS-PRIMARY>                                     4.89<F2>                4.43<F2>
<EPS-DILUTED>                                     4.41<F2>                3.90<F2>
<FN>
<F1>Other expenses in 1997 are equal to research and development of 157 and
    depreciation and amortization of 340.  Other expenses in 1996 are equal to 
    research and development of 159 and depreciation and amortization of 312.
<F2>The EPS-PRIMARY amount represents basic earnings per share and the EPS-DILUTED
    amount represents diluted earnings per share, computed in accordance with
    Statement of Financial Accounting Standards No. 128 "Earnings Per Share."
</FN>