Material

60Si2MnA

60Si2CrA

55Si2Mn

38Si7

Chemical composition(%)

C:0.56-0.64, Mn:0.60-0.90, Si:1.60-2.00, Cr:≤0.35, P:≤0.03, S:≤0.03

C:0.56-0.64, Mn:0.40-0.70, Si:1.40-1.80,Cr:0.70-1.00 P:≤0.03, S:≤0.03

C:0.52-0.60, Mn:0.60-0.90, Si:1.50-2.00,Cr:≤0.35 P:≤0.03, S:≤0.03

C:0.35-0.42, Mn:0.50-0.80, Si:1.50-1.80, P:≤0.03, S:≤0.03

 
Hardness
 

HRC 42-47

 
Fatigue life
 

 
5 millions cycles without breaking
 

 
Surface
 

Plain (oiled), Oxide black, color painting

Standard refers

 
GB/T 1222,DIN 17221