Grado | 							Composición química principal, % | 							Impureza ≤ % | 		
									Ni+Co 				≥ | 							Cr | 							Mn | 							Si | 							Fe | 							Cu | 							S | 							C | 							Fe | 		
									NCr5-3-1.8 | 							88.0 | 							4.5~5.5 | 							2.5~3.5 | 							1.5~2.0 | 							-- | 							0.2 | 							0.1 | 							0.1 | 							0.5 | 		
									NCr-15-8 | 							72.0 | 							14.0~17.0 | 							0.2~1.0 | 							0.1~0.5 | 							6.0~10.0 | 							0.5 | 							0.015 | 							0.15 | 							-- | 		
									NCr1.5-1.5-0.5 | 							95.0 | 							1.40~1,80 | 							1.3~1.8 | 							0.4~065 | 							-- | 							0.15 | 							0.005 | 							0.05 | 							0.3 | 		
									NCr2-1-0.5 | 							94,0 | 							1.50~2.00 | 							1.5~2.0 | 							0.5~1.0 | 							-- | 							0.15 | 							0.05 | 							0.1 | 							0.4 | 		
									NMn2-1.8-1.8 | 							92,0 | 							1.50~2.00 | 							1.5~2.5 | 							1.5~2.0 | 							-- | 							0.15 | 							0.07 | 							0.07 | 							0.4 |