<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
Condensed Consolidated Statement of Financial Condition as of June 30, 1997
(unaudited) and the Condensed Consoidated Statement of Income for the Three
Months Ended June 30, 1997 (unaudited) and is qualified in its entirety by
reference to such financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             APR-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                          22,300
<SECURITIES>                                     7,100
<RECEIVABLES>                                  144,000
<ALLOWANCES>                                         0
<INVENTORY>                                    100,900
<CURRENT-ASSETS>                               303,600
<PP&E>                                         902,900
<DEPRECIATION>                                 350,700
<TOTAL-ASSETS>                               1,389,300
<CURRENT-LIABILITIES>                          381,400
<BONDS>                                        256,700
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           200
<OTHER-SE>                                     677,900
<TOTAL-LIABILITY-AND-EQUITY>                 1,389,300
<SALES>                                        893,200
<TOTAL-REVENUES>                               893,200
<CGS>                                          692,600
<TOTAL-COSTS>                                  692,600
<OTHER-EXPENSES>                               105,300
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              12,800
<INCOME-PRETAX>                                 82,500
<INCOME-TAX>                                    28,100
<INCOME-CONTINUING>                             54,400
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    54,400
<EPS-PRIMARY>                                     2.30
<EPS-DILUTED>                                     2.30