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 SMn420 with moderate intensity,low temperature performance is good,compared with the corresponding carbon content of the carbon steel and its high hardenability.
SMn420 Generally used as a small section of part and carburizing small gear,shaft,steel sleeve,piston pin,diesel engine sleeve,car steering roller shaft,valve plunger,etc;also can be used for quenched and tempered steel,such as cold heading bolt or larger section of conditioning parts.
SMn420 structural alloy steel delivery status:by heat treatment (normalizing,annealing and high temperature tempering) or heat treatment state delivery.
SMn420 steel chemical composition %
| 
             Grade 
             | 
            
             C  | 
            
             Si  | 
            
             Mn  | 
            
             P  | 
            
             S  | 
            
             Ni  | 
            
             Cr  | 
            
             Mo  | 
        
| 
             SMn420  | 
            
             0.17-0.23  | 
            
             0.15-0.35  | 
            
             1.20-1.50  | 
            
             ≤0.030  | 
            
             ≤0.030  | 
            
             ≤0.25  | 
            
             ≤0.35  | 
            
             ~  | 
        
SMn420 steel Mechanical properties
| 
             Grade 
             | 
            
             Min Yield strength in different thickness  | 
            
             Min tensile strength in different thickness  | 
            
             Elongation in different thickness  | 
            
             
 Shrinking  | 
        
| 
             SMn420  | 
            
             785  | 
            
             590  | 
            
             10  | 
            
             40  | 
        
We keep more than 10,000 tons SMn420 steel plates in stock each month.we can meet our customer’s any quantity request.Based on these stock source,our advantage industry spread into steel process like:cutting (any size and any shape) drilling,welding,milling,machining and steel structure.and if you need to know more information about the SMn420 structural alloy steel,just contact us.
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