Made from rolled iron oxide scale and pure iron ore powder through high-temperature reduction of coke powder and subsequent hydrogen reduction, it has a sponge like structure and high surface activity. Can be used for welding electrodes。
| 
				 specifications  | 
			
				 composition %  | 
			
				 physical property  | 
		||||||
| 
				 
					TFe   | 
			
				 
					Mn   | 
			
				 
					Si   | 
			
				 
					C   | 
			
				 
					S   | 
			
				 
					P   | 
			
				 
					Granularity   | 
			
				 apparent density  | 
		|
| 
				 DHT40.29  | 
			
				 98.0  | 
			
				 0.40  | 
			
				 0.2  | 
			
				 0.05  | 
			
				 0.025  | 
			
				 0.03  | 
			
				 0~425  | 
			
				 2.6~3.1g/cm3  | 
		
| 
				 DHT60.25  | 
			
				 98.0  | 
			
				 0.40  | 
			
				 0.2  | 
			
				 0.05  | 
			
				 0.025  | 
			
				 0.03  | 
			
				 0~250  | 
			
				 2.4~2.7g/cm3  | 
		
| 
				 DHT80.25  | 
			
				 98.0  | 
			
				 0.40  | 
			
				 0.2  | 
			
				 0.05  | 
			
				 0.025  | 
			
				 0.03  | 
			
				 0~180  | 
			
				 2.4~2.7g/cm3  | 
		
| 
				 DHT100.25  | 
			
				 98.0  | 
			
				 0.40  | 
			
				 0.20  | 
			
				 0.05  | 
			
				 0.020  | 
			
				 0.03  | 
			
				 0~150  | 
			
				 2.4~2.7g/cm3  | 
		
	
 
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