Grinding ball
Advantages:
1) High hardness
2) Good wear-Resistance
3) No breaking
4)no deformation
2) Good wear-Resistance
3) No breaking
4)no deformation
5)High combined efficiency of grinding mill
Basic information
1) diameter: 20~150mm
2) HRC: 50~65
3) material: steel
Application fields
2) HRC: 50~65
3) material: steel
Application fields
1) Industries of cement building material
2) Metallurgical selection in mine
3) Grinding coal in power plate
4) Chemical industry and machinery
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Chemical elements of forged steel balls
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C
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Si
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Mn
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Cr
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S
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P
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0.52-0.65
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0.17-0.37
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0.6-1.2
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≤0.25
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≤0.030
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≤0.030
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0.61-0.68
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0.2-0.4
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0.8-1.2
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0.9-1.2
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≤0.035
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≤0.035
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Specification and hardness of forging ball
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Nominal diameter
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Diametrical
Tolerance
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Weight of single ball in average
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Surface hardness
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Impact toughness
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(mm)
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(mm)
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(g)
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(HRC)
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(j/cm2 )
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Φ20
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+2 -1
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32
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50-65
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≥12
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Φ25
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64
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Φ30
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110
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Φ40
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263
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Φ50
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513
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Φ60
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+3 -2
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888
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Φ70
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1410
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Φ80
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2104
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Φ90
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2996
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Φ100
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4110
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Φ110
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+4 -2
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5457
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45-60
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Φ120
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7102
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Φ130
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9030
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Φ140
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+4 -3
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11278
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Φ150
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13871
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