1)High hardness; No breakage; Good wear resistance
2)HRC:50-65
3)Dia:20mm-150mm
4)Forged ball
2)HRC:50-65
3)Dia:20mm-150mm
4)Forged ball
a.The Material: The high quality Alloy Steel Material
b.Package: steel drum (800-900kg per drum) or flexible container bag (1000kg per bag)
c.Characteristics:
no deformation
high hardness
good wear resistant
no breakage
d.The application of industry:
cement building materials
metal mining
coal paste thermal power plants
chemical engineering
ceramic coating
Light industry
magnetic materials
e.Chemcial Elements
Type and Chemical Composition of Forged Balls
|
Brand
|
Name
|
C
|
Mn
|
Si
|
Cr
|
S
|
P
|
V
|
|
ZW-1
|
50Mn
|
0.48-0.56
|
0.70-1.0
|
0.17-0.37
|
≤0.25
|
≤0.035
|
≤0.035
|
|
|
ZW-2
|
60Mn
|
0.57-0.65
|
0.7-1.0
|
0.17-0.37
|
≤0.25
|
≤0.035
|
≤0.035
|
|
|
ZW-3
|
65Mn
|
0.60-0.70
|
0.9-1.2
|
0.17-0.37
|
≤0.25
|
≤0.035
|
≤0.035
|
|
|
ZW-4
|
B2
|
0.7-0.85
|
0.7-0.8
|
0.17-0.37
|
0.2-0.7
|
≤0.03
|
≤0.03
|
|
|
ZW-5
|
75SiMn
|
0.7-0.90
|
0.7-1.2
|
0.4-0.8
|
≤0.25
|
≤0.03
|
≤0.03
|
|
|
ZW-6
|
Wear-resistant Alloy
|
0.5-0.65
|
0.4-1.0
|
1.4-1.8
|
0.9-1.2
|
≤0.03
|
≤0.03
|
0.1-0.2
|
Physical Property of Forged Balls
|
Brand
|
Name
|
Impact Test
(Ak.J/cm2)
|
Endurance test times
(5m)
|
Hardness (HRC)
|
Breakage
|
|||
|
φ25mm-φ60mm
|
φ70mm-φ100mm
|
|||||||
|
Surface
|
Core
|
Surface
|
Core
|
|||||
|
ZW-1
|
50Mn
|
≥12
|
≥10000
|
≥56
|
≥35
|
≥56
|
≥28
|
＜1%
|
|
ZW-2
|
60Mn
|
≥13
|
≥10000
|
≥58
|
≥38
|
≥58
|
≥29
|
＜1%
|
|
ZW-3
|
65Mn
|
≥15
|
≥12000
|
≥60
|
≥42
|
≥60
|
≥30
|
＜1%
|
|
ZW-4
|
B2
|
≥17
|
≥12000
|
≥60
|
≥52
|
≥60
|
≥50
|
＜1%
|
|
ZW-5
|
75SiMn
|
≥16
|
≥12000
|
≥60
|
≥50
|
≥60
|
≥48
|
＜1%
|
|
ZW-6
|
Wear-resistant Alloy
|
≥17
|
≥12000
|
≥60
|
≥54
|
≥60
|
≥52
|
＜1%
|
Weight and Microstructure of Forged Balls
|
(mm)
Nominal diameter
|
(mm)
Diametrical Tolerance
|
(kg)
Approx weight per ball
|
Average number
per MT
|
Microstructure
|
|
25
|
+1.5, —0.5
|
0.064
|
15625
|
M+B+C
(M-Martensite;
B-Bainitic;C-Carbide)
|
|
30
|
+1.5, —0.5
|
0.11
|
9090
|
|
|
40
|
+2.0, —1.0
|
0.26
|
3846
|
|
|
50
|
+2.0, —1.0
|
0.51
|
1961
|
|
|
60
|
+3.0, —2.0
|
0.89
|
1124
|
|
|
70
|
+3.0, —2.0
|
1.4
|
714
|
|
|
80
|
+3.0, —2.0
|
2.1
|
476
|
|
|
90
|
+3.0, —2.0
|
3
|
333
|
|
|
100
|
+4.0, —3.0
|
4.1
|
244
|
|
|
110
|
+4.0, —3.0
|
5.47
|
283
|
|
|
120
|
+4.0, —3.0
|
7.1
|
141
|
|
|
130
|
+4.0, —3.0
|
9.02
|
111
|