| 
						C 
					 | 
						Si 
					 | 
						Mn 
					 | 
						P 
					 | 
						S 
					 | 
						Ni 
					 | 
						Cr 
					 | 
| 
						≤0.2 
					 | 
						≤0.4 
					 | 
						0.8~1.4 
					 | 
						≤0.025 
					 | 
						≤0.015 
					 | 
						≤0.3 
					 | 
						≤0.3 
					 | 
| 
						Mo 
					 | 
						Cu 
					 | 
						Nb 
					 | 
						V 
					 | 
						Ti 
					 | 
						Alt 
					 | 
						N 
					 | 
| 
						≤0.08 
					 | 
						≤0.3 
					 | 
						≤0.02 
					 | 
						≤0.02 
					 | 
						≤0.03 
					 | 
						≥0.02 
					 | 
						≤0.012 
					 | 


 
         
  
   
   
 


 
   
 
                 
                 
                 
                