Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Revenue from External Customers by Product Line

Concentrations of Credit Risk: The Company is primarily a producer of carbon, stainless and electrical steels and steel products, which are sold to a number of markets, including automotive, industrial machinery and equipment, construction, power distribution and appliances.  The following presents net sales by product line:

	2012		2011		2010
Stainless and electrical	$	1,898.9	$	2,188.9	$	2,136.9
Carbon	3,789.6		4,009.5		3,620.1
Tubular	243.6		247.7		210.7
Other	1.6		21.9		0.6
Total	$	5,933.7	$	6,468.0	$	5,968.3

Schedule of Percentage of Net Sales by Market

The following sets forth the percentage of the Company’s net sales attributable to various markets:

	2012		2011		2010
Automotive	45	%	36	%	36	%
Infrastructure and Manufacturing	23	%	24	%	25	%
Distributors and Converters	32	%	40	%	39	%