| 
			 Standard  | 
			
			 Chemical Composition Rate ( Wt, % )  | 
		||||||
| 
			 C  | 
			
			 Si  | 
			
			 Mn  | 
			
			 Ni  | 
			
			 Cr  | 
			
			 P  | 
			
			 S  | 
		|
| 
			 S50C  | 
			
			 0.47  | 
			
			 0.15  | 
			
			 0.6  | 
			
			 
  | 
			
			 
  | 
			
			 
  | 
			
			 
  | 
		
| 
			 0.53  | 
			
			 0.35  | 
			
			 0.9  | 
			
			 0.2  | 
			
			 0.2  | 
			
			 0.03  | 
			
			 0.035  | 
		|
| 
			 Steel  | 
			
			 Tensile strengh  | 
			
			 Yield strengh  | 
			
			 Relative Elongation  | 
		
| 
			 N/mm2  | 
			
			 N/mm2  | 
			
			 (%)  | 
		|
| 
			 S50C  | 
			
			 590~705  | 
			
			 355~540  | 
			
			 15  | 
		
| 
			 Steel  | 
			
			 Annealing  | 
			
			 Quenching  | 
			
			 Tempering  | 
			
			 Hardness HRC  | 
		||
| 
			 Temperature (°C)  | 
			
			 Temperature  | 
			
			 Oil  | 
			
			 Temperature  | 
			
			 Air  | 
		||
| 
			 (°C)  | 
			
			 (°C)  | 
		|||||
| 
			 S45C  | 
			
			 ~600  | 
			
			 800~850  | 
			
			 180~200  | 
			
			 40~50  | 
		||
4. Apllications
- Making some details in the engine, normal mold, mold base, support plate, gasket mold...
- Used in machine building because of its high heat resistance, good surface resistance, used for rollers, rollers, swingarms, agricultural machinery, and details subject to large loads.....

