Description:

B)Chemical Composition

1. Low-Chrome grinding steelballs

  a) Chemicalcomposition

C:2.0-3.5    Si:1.2max   Mn:1.0max   P:0.15max  S:0.25max   Cr:0.5-1.5

  b)Hardness     HRC45Min

2. Medium-Chrome grinding steelballs

  a) ChemicalComposition

C:2.0-3.2   Si:1.0max    Mn:0.3-1.0   P:0.15max    S:0.25max Cr:3.0-5.5

  b)Hardness   HRC 48Min

3.High-Chrome grinding steelballs

  a) Chemical Composition

C:1.8-3.2   Si:0.3-1.2  Mn;0.3-1.0    P:0.10max    S:0.10max     Cr:10-10.5

  b) Hardness  HRC56-66