High Cr Cast Balls Grinding Media
Quick Details
1. Material:Cr15.
2. Hardness: More than HRC60.
Φ60mm High Cr Cast Balls
1. Hardness difference from surface to center is less than HRC3.
2. Hardness:More than HRC60.
3. Surface of castings is free from burnt sand & smooth.
4. It is free from hard spot, visible injurious defects such as blow hole,porosity, shrinkage, cracks, cold-shuts.
1. Specification available
A. Cast Balls
(1) Diameter (mm): φ140, φ125, φ110, φ100, φ90, φ80, φ70, φ60, φ50, φ40, φ30, φ20, φ17, φ15
B. Cast Cylpebs
(1.2)Diameter (mm): φ35×40, φ30×35, φ25×30, φ20×25, φ18×18, φ16×16, φ15×20, φ14x14,
φ12×16, φ12x12, φ10×12, φ10×10, φ8×8
(2) General Mechanical Property
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Materials
|
Hardness
|
Impact value
|
Wear in Cement Mills (g/mt)
|
Application Field
|
|
High Cr
Cast Iron
|
≥HRc60
|
≥4J
|
25-60
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The dry-grinding process in cement works, power plants and wet-grinding process in mine;
|
|
Low Cr
Cast Iron
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≥HRc46
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≥3J
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≤130
|
The dry-grinding process in cement works, power plants and wet-grinding process in mines
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(3). The Detailed Information about Diameter 60mmCast Balls with Different Cr Content
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Composition
(%)
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C
|
Si
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Mn
|
Cr
|
P
|
S
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Hardness
(HRC)
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Wear Rate in Gold Mine
|
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Low Cr Cast Balls
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2.0~3.0
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0.5~1.5
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≤0.50
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1.5~2.5
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≤0.07
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≤0.07
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46~55
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About 1000g/MT
|
|
Mid Cr Cast Balls
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2.0~3.5
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≤1.0
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0.3~1.2
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4.0~6.0
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≤0.10
|
≤0.10
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≥50
|
About 870g/MT
|
|
Cr12 Cast Balls
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2.0~3.0
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≤1.2
|
0.7~2.0
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10~12
|
≤0.06
|
≤0.06
|
≥55
|
≤820g/MT
|
|
Cr15 Cast Balls
|
2.0~3.0
|
≤1.2
|
0.7~2.0
|
14~16
|
≤0.06
|
≤0.06
|
≥58
|
|
Cr20 Cast Balls
|
2.0~3.5
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≤1.0
|
0.5~1.5
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17~23
|
≤0.06
|
≤0.06
|
≥60
|
≤760g/MT
|
C. Forged Steel Balls
⑴. Diameter (mm): φ150, φ140, φ130, φ120, φ110, φ100, φ90, φ80, φ70, φ60, φ50, φ40
(2). General Mechanical Property
|
Composition (%)
|
C
|
Si
|
Mn
|
Cr
|
P
|
S
|
|
Type One Material
|
0.57~0.65
|
0.17-0.37
|
0.70-0.80
|
0.28-0.60
|
≤0.04
|
≤0.04
|
Ⅰ. For Type One Material
|
Size
|
Surface
|
Core
|
|
Φ40~60mm
|
HRC50~60
|
HRC50~60
|
|
Φ70~80mm
|
HRC50~60
|
HRC50~60
|
|
Φ90~100mm
|
HRC50~60
|
HRC50~60
|
|
Φ110~140mm
|
HRC50~60
|
HRC50~60
|
Ⅱ. For Type Two Material
|
Composition (%)
|
C
|
Si
|
Mn
|
Cr
|
V
|
P
|
S
|
Hardness
|
|
Type Two Material
|
0.7-0.9
|
0.45-0.75
|
0.70-1.25
|
0.11-0.40
|
0.05-0.12
|
≤0.04
|
≤0.04
|
HRC55~65
|
D. Holt-rolled Steel Balls
(1). Diameter (mm): φ150, φ120, φ100, φ90, φ80, φ70, φ60, φ50, φ40, φ30, φ25
(2) General Mechanical Property (Refer to GB8649-88)
|
Composition(%)
|
C
|
Si
|
Mn
|
Cr
|
Mo
|
Ni
|
Cu
|
V
|
Co
|
Hardness
|
|
Hot-rolled Steel Balls
|
0.5
~
1.0
|
0.25
~
1.60
|
0.4
~
1.2
|
≤
1.0
|
≤
0.5
|
≤
0.5
|
≤
0.5
|
≤
0.04
|
≤
0.09
|
≥HRC58
|
2. Size Tolerance
|
Item
|
Specification (mm)
|
|
Φ15~Φ50
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Φ60~Φ150
|
|
Diameter tolerance
|
+1.5
-1.0
|
+2.0
-1.0
|
3. Package
Packaged by flexible container bags weighing about 1000kg or in iron drums weighing about 850kg.
Product Tags:
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High Cr Cast Balls Grinding Media Images
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