Item
Name
|
Cast steel grit
|
|||
Chemical Composition
|
Carbon (C)
|
0.85-1.20%
|
||
Manganese (Mn)
|
0.60-1.20%
|
|||
Silicon (Si)
|
0.50-1.20%
|
|||
Sulfur (S)
|
≤0.05%
|
|||
Phosphorus (P)
|
≤0.05%
|
|||
Hardness
|
GP
|
GL
|
GH
|
|
40-50HRC
|
53-60HRC
|
60-66HRC
|
||
Microstructure
|
Fine and Homogeneous Tempered Martensite
|
Fine and Homogeneous Tempered Martensite
|
Fine and Homogeneous Tempered Martensite
|
|
Appearance
|
angular
|
|||
Density
|
≥7.4 g/cm3
|
Item
Name
|
Bearing steel grit
|
|||
Chemical Composition
|
Carbon (C)
|
0.80-1.20%
|
||
Manganese (Mn)
|
0.60-1.20%
|
|||
Silicon (Si)
|
0.40-1.20%
|
|||
Chrome (Cr)
|
0.95-1.50%
|
|||
Sulfur (S)
|
≤0.05%
|
|||
Phosphorus (P)
|
≤0.05%
|
|||
Hardness
|
GP
|
GL
|
GH
|
|
40-50HRC
|
53-60HRC
|
>60HRC
|
||
Microstructure
|
Fine and Homogeneous Tempered Troostite
|
Fine and Homogeneous Tempered Martensite
|
Fine and Homogeneous Tempered Martensite
|
|
Appearance
|
Fully angular
|
|||
Density
|
≥7.5g/cm3
|