<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
MARCH 31, 1998, CONSOLIDATED STATEMENT OF INCOME AND CONSOLIDATED BALANCE
SHEET AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               MAR-31-1998
<CASH>                                          23,404
<SECURITIES>                                         0
<RECEIVABLES>                                  227,041
<ALLOWANCES>                                         0
<INVENTORY>                                    219,737
<CURRENT-ASSETS>                               516,252
<PP&E>                                       1,065,613
<DEPRECIATION>                               (358,231)
<TOTAL-ASSETS>                               1,422,489
<CURRENT-LIABILITIES>                          228,452
<BONDS>                                        384,524
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         5,905
<OTHER-SE>                                     649,604
<TOTAL-LIABILITY-AND-EQUITY>                 1,422,489
<SALES>                                        451,491
<TOTAL-REVENUES>                               451,491
<CGS>                                          360,652
<TOTAL-COSTS>                                  360,652
<OTHER-EXPENSES>                                 (753)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               5,240
<INCOME-PRETAX>                                 35,828
<INCOME-TAX>                                    13,900
<INCOME-CONTINUING>                             21,928
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    21,928
<EPS-PRIMARY>                                      .41
<EPS-DILUTED>                                      .41