Quality Specifications

    Technical Specifications of Case Hardening Steels    
       
              Case Hardening steels are the steels that require properties such as softness and toughness in the core, and properties such as hardness and wear resistance on the surface. These steels can be used as alloyed-unalloyed and contain low carbon (0.10-0.25%). Since these steels are resistant to abrasion on the surface despite their high toughness values, they are used in parts where variable - impact loads and wear are effective.    
       
       
       
                                                           
 
 
                                                           
    1.  CHEMICAL COMPOSITION    
         
      Chemical Composition by Mass %    
    Grade C Si max. Mn P max. S max. Cr max. Mo max. Ni max. Cu max. Al B    
    16MnCr5 0,14 - 0,19 0,40 1,00 - 1,30 0,025 max. 0,035 0,80 - 1,10 - - - - -    
    16MnCrS5 0,020 - 0, 040    
    20MnCr5 0,17 - 0,22 0,40 1,10 - 1,40 0,025 max. 0,035 1,00 - 1,30 - - - - -    
    20MnCrS5 0,020 - 0, 040    
    20NiCrMo2-2 0,17 - 0,23 0,40 0,65 - 0,95 0,025 max. 0,035 0,35 - 0,70 0,15 - 0,25 0,40 - 0,70 - - -    
    20NiCrMoS2-2 0,020 - 0, 040    
    SAE 8620H 0,17 - 0,23 0,15 - 0,35 0,60 - 0,95 - - 0,35 - 0,65 0,15 - 0,25 0,35 - 0,75 - - -    
    18CrNiMo7-6 0,15 - 0,21 0,40 0,50 - 0,90 0,025 0,035 1,50 - 1,80 0,25 - 0,35 1,40 - 1,70 - - -    
    16MnCr5MOD 0,14 - 0,18 0,21 - 0,29 1,05 - 1,15 0,025 0,030 0,80 - 0,90 - 0,15 0,10 0,020 - 0,030 0,0030 - 0,0070    
    19CrNi5 0,16 - 0,21 0,15 - 0,35 0,70 - 1,10 0,035 0,020 - 0,040 0,80 - 1,20 0,10 0,80 - 1,20 0,30 0,020 - 0,050 -    
    19MnCr5G 0,15 - 0,21 0,15 - 0,35 1,00 - 1,30 0,035 - 0,80 - 1,10 - - 0,30 0,020 - 0,050 -    
         
    2. TECHNICAL DELIVERY CONDITIONS    
    ASTM A304 Standard Specification for Carbon and Alloy Steel Bars Subject to Hardenability Requirements    
    EN 10277-4: 2008 Bright Steel Materials. Technical Delivery Conditions. Case Hardening Steels.    
    EN 10084: 2008 Cementation Steels. Technical Delivery Conditions.    
         
    3. USAGE AREAS    
    Case Hardening Steels are generally; They are used in parts such as gears, rollers, bushings, roller bearings, guide bearings, discs, rollers, piston pins.    
       

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