
| 
			 Grade  | 
			
			 C %  | 
			
			 Si %  | 
			
			 Mn %  | 
			
			 P %  | 
			
			 S %  | 
			
			 Al(acid soluble),min%  | 
			
			 Cb  | 
			
			 V  | 
			
			 Ti  | 
			
			 Cu  | 
			
			 Cr  | 
			
			 Ni  | 
			
			 Mo  | 
			
			 N  | 
		
| 
			 ASTM A131 FH40  | 
			
			 0.16  | 
			
			 0.10-0.50  | 
			
			 0.90-1.60  | 
			
			 0.025  | 
			
			 0.025  | 
			
			 0.015  | 
			
			 0.02-0.05  | 
			
			 0.05-0.10  | 
			
			 0.02  | 
			
			 0.35  | 
			
			 0.20  | 
			
			 0.40  | 
			
			 0.08  | 
			
			 0.009  | 
		
| 
			 Grade  | 
			
			 Yield Strength (Mpa)  | 
			
			 Tensile Strength  | 
			
			 Elongation in8 in.[200mm]  | 
			
			 Elongation in8 in.[200mm]  | 
			
			 Impact Energy  | 
			
			 Test Temperature(°C)  | 
		
| 
			 ASTM A131 FH40  | 
			
			 ≥390  | 
			
			 510-650  | 
			
			 ≥19  | 
			
			 ≥22  | 
			
			 37  | 
			
			 -60  | 
		
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