6.	Inventories


	June 30,
($ in millions)	2011		2010
Raw materials and supplies	$	63.3	$	30.7
Work in process		171.9		109.1
Finished and purchased products		93.4		63.8

Total inventory	$	328.6	$	203.6

If the first-in, first-out method of inventory had been used instead of the LIFO method, inventories would have been $355.4 million and $331.8 million higher as of June 30, 2011 and 2010, respectively. Current cost of LIFO-valued inventories was $599.3 million at June 30, 2011 and $474.4 million at June 30, 2010. The reductions in LIFO-valued inventories decreased cost of sales by $1.7 million during fiscal year 2011, $7.0 million during fiscal year 2010, and $8.0 million during fiscal year 2009.