Advances in Energy Conservation of China Steel Industry

Table 1

Steel ratio coefficients of CSI during 1980–2010 (t-product/t-crude steel).

Year	Coke-making	Sintering	Iron-making	Open hearth	BOF	EAF	Steel rolling
1980	0.793	1.727	1.082	0.320	0.488	0.192	0.765
1985	0.706	1.638	1.012	0.263	0.521	0.216	0.800
1990	0.632	1.602	0.990	0.198	0.589	0.213	0.811
1995	0.580	1.619	0.992	0.137	0.667	0.196	0.812
2000	0.402	1.517	0.922	0.008	0.877	0.115	0.890
2005	0.404	1.334	0.875	NA	0.883	0.117	0.920
2010	0.334	1.269	0.944	NA	0.902	0.098	0.945

NA is the abbreviation for “not available” due to the elimination of open hearth.