<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
company's consolidated Balance Sheet and Profit & Loss financial statements and
is qualified in its entirety by reference to such fanancial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               MAR-31-1996
<CASH>                                             864
<SECURITIES>                                         0
<RECEIVABLES>                                  327,579
<ALLOWANCES>                                     6,996
<INVENTORY>                                    395,362
<CURRENT-ASSETS>                               770,849
<PP&E>                                       2,364,061
<DEPRECIATION>                               1,324,352
<TOTAL-ASSETS>                               1,987,711
<CURRENT-LIABILITIES>                          487,926
<BONDS>                                        151,108
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       321,944
<OTHER-SE>                                     526,509
<TOTAL-LIABILITY-AND-EQUITY>                 1,987,711
<SALES>                                        595,954
<TOTAL-REVENUES>                               595,954
<CGS>                                          456,739
<TOTAL-COSTS>                                  456,739
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               3,675
<INCOME-PRETAX>                                 53,843
<INCOME-TAX>                                    20,245
<INCOME-CONTINUING>                             33,598
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    33,598
<EPS-PRIMARY>                                     1.07
<EPS-DILUTED>                                     1.06