718H is a kind of plastic mold steel commonly used in plastic mold, It is Cr-Nickel-Molybdenum alloy steel with vacuum tempering.
| 
			 Standard  | 
			
			 Chemical Composition Rate ( Wt, % )  | 
		|||||
| 
			 C  | 
			
			 Mn  | 
			
			 Si  | 
			
			 Cr  | 
			
			 Mo  | 
			
			 Ni  | 
		|
| 
			 718  | 
			
			 0.35  | 
			
			 1.3  | 
			
			 0.2  | 
			
			 1.8  | 
			
			 1.5  | 
			
			 0.9  | 
		
| 
			 0.45  | 
			
			 1.6  | 
			
			 0.4  | 
			
			 2.1  | 
			
			 2.5  | 
			
			 1.2  | 
		|
2. Apllications
- The mold is easy to fix. the surface hardness and wear resistance of the mold can be improved by nitriding and hardening the fire hole.
- Because of high hardness, better polishing, better wear resistance, higher tensile and compressive strength. 718H is suitable for plastic mold PA, POM, PS, PE, PP, ABS
- Available hardness of steel reaches 32-36 HRC.
