| Equivalent grades | 
			GB  | 
			DIN  | 
			AISI  | 
			JIS  | 
			- | 
		 
		
			| 4Cr5MoSiV1 | 
			1.2344 | 
			H13 | 
			SKD61 | 
			- | 
		 
		
			Chemical 
			Composition | 
			C | 
			Si | 
			Mn | 
			Cr | 
			Mo | 
			V | 
			P | 
			S | 
			- | 
			- | 
		 
		
			| 0.32-0.45 | 
			0.90-1.20 | 
			0.30-0.50 | 
			4.80-5.50 | 
			1.20-1.50 | 
			0.90-1.10 | 
			≤0.030 | 
			≤0.030 | 
			- | 
			- | 
		 
		
			| Available size | 
			Round Bar | 
			Diameter | 
			Length | 
		 
		
			| 60-800mm | 
			2000-6000mm | 
		 
		
			| Flat Bar | 
			Thickness | 
			Width | 
			Length | 
		 
		
			| 25-400mm | 
			200-800mm | 
			2000-6000mm | 
		 
		
			| Surface condition | 
			Black surface/ Grinded/ Machined | 
		 
		
			| Annealed hardness | 
			HB235 | 
		 
		
			| Characteristics | 
			have good tenacity,hot tirdness nature and definite wearable;empty quenching under 
			lower Ao shi ti temperature condition.small distortion after heat-treatment and so on. | 
		 
		
			| Applications | 
			Hot forming tools,hot forgingdies,pressure casting tools,hot shear knives,tools for 
			plastic industry,hot punches and dies forblanking,hot extrusion diesfor aluminium,tin 
			and lead die casting. | 
		 
		
			| Heat Treatment | 
			hardening :1020 °C 
			tempering :530-560 °C | 
		 
	
 
 
               
               
               
               
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