Ball mill steel ball specification
One,
Chemical elements (substance composition):
C
silicon (Si)
manganese
chrome
molybdenum
S
P
65mn
0.62-0.70
0. 17-0.37
0.9- 1.2
≤0.25
0- 1.0
≤0.04
≤0.04
U7 1Mn
0.67-0.75
0.36-0.60
0.9- 1.8
1.0-3.0
0- 1.0
≤0.04
≤0.04
35CrMo
0.32-0.40
0. 17-0.37
0.4-0.7
0.8- 1.0
0. 15-0.25
≤0.04
≤0.04
42CrMo
0.38-0.45
0. 17-0.37
0.5-0.8
0.9- 1.2
0. 15-0.25
≤0.04
≤0.04
Second, the mechanical properties
Technical specification of products
Surface hardness HRC
Core hardness HRC
Impact toughness J/cm2
∮
30 mm to 50 mm
58-60
54
12- 14
∮
60mm-80mm
55-58
48
14- 16
∮
90mm-120mm
5 1-56
45
16- 19
3. Wear comparison of forged steel balls under different working conditions;
Grinding ball type
65Mn steel ball
U7 1Mn steel ball
55CrMo steel ball
42CrMo steel ball
Grinding coal wears g/t coal.
80- 175
60- 100
60- 100
50-90
Cement clinker g/t material
100-225
70- 120
80- 135
70- 100
Iron ore consumes g/t ore.
450-600
300-450
360-500
280-400
Ball Mill Steel Ball Manufacturer He 'nan Hong Ke Heavy Industry Machinery Equipment Co., Ltd.