<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 entirely by reference to such financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               JUN-30-1996
<CASH>                                           6,869
<SECURITIES>                                         0
<RECEIVABLES>                                  334,016
<ALLOWANCES>                                     7,481
<INVENTORY>                                    413,866
<CURRENT-ASSETS>                               799,956
<PP&E>                                       2,411,167
<DEPRECIATION>                               1,352,414
<TOTAL-ASSETS>                               2,055,306
<CURRENT-LIABILITIES>                          530,320
<BONDS>                                        151,012
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       324,794
<OTHER-SE>                                     549,806
<TOTAL-LIABILITY-AND-EQUITY>                 2,055,306
<SALES>                                      1,197,507
<TOTAL-REVENUES>                             1,197,507
<CGS>                                          915,903
<TOTAL-COSTS>                                  915,903
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               7,734
<INCOME-PRETAX>                                111,675
<INCOME-TAX>                                    43,553
<INCOME-CONTINUING>                             68,122
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    68,122
<EPS-PRIMARY>                                     2.17
<EPS-DILUTED>                                     2.15