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Inventories
12 Months Ended
Dec. 31, 2013
Inventory Disclosure [Abstract]  
Inventories
Inventories
Inventories at December 31, 2013 and 2012 were as follows (in millions):
 
 
2013
 
2012
Raw materials and supplies
 
$
277.6

 
$
351.6

Work-in-process
 
984.9

 
1,127.0

Finished goods
 
162.1

 
209.0

Total inventories at current cost
 
1,424.6

 
1,687.6

Adjustment from current cost to LIFO cost basis
 
29.4

 
(76.9
)
Inventory valuation reserves
 
(84.3
)
 
(63.1
)
Progress payments
 
(47.6
)
 
(11.0
)
Total inventories, net
 
$
1,322.1

 
$
1,536.6


Inventories, before progress payments, determined on the LIFO method were $976.1 million at December 31, 2013, and $997.3 million at December 31, 2012. The remainder of the inventory was determined using the FIFO and average cost methods, and these inventory values do not differ materially from current cost. The effect of using the LIFO methodology to value inventory, rather than FIFO, decreased cost of sales by $80.9 million, $75.6 million, and $25.9 million in 2013, 2012 and 2011, respectively. Due to deflationary impacts primarily related to raw materials, the carrying value of the Company's inventory as valued on the LIFO inventory accounting method exceeded current replacement cost at December 31, 2013. Based on a lower of cost or market value analysis, a $35.0 million net realizable value reserve was recorded in the High Performance Metals segment. In addition, continued sluggish demand for industrial titanium products from global markets has resulted in much lower selling prices for these products. As a result, in 2013, the Company recorded a $20.5 million lower of cost or market reserve for industrial titanium products in the Flat-Rolled Products segment.
During 2013, 2012, and 2011, inventory usage resulted in liquidations of LIFO inventory quantities. These inventories were carried at differing costs prevailing in prior years as compared with the cost of current manufacturing cost and purchases. The effect of these LIFO liquidations was to increase cost of sales by $3.8 million in 2013, increase cost of sales by $1.5 million in 2012 and decrease cost of sales by $0.1 million in 2011.