Specifications
high performance grinding media steel ball
1) Diameter25mm~150mm
2) Characteristics:
a) even hardness b)no deformation
high performance grinding media ball
1) Diameter: 25mm~150mm
2). Characteristics:
a) even hardness b)no deformation c) No breaking d) No mal-roundness F)grinding resistant G) low wear rate
3). Applied fields:
a) Metal Mines b) Cement plants c) Water coal slurry d) Power stations e) Chemical industry
The main products of Jinan Jinchi Steel Ball Co.,Ltd. are forged steel balls, casting steel balls. The company has been accredited with ISO9001 quality certification.
Forged grinding balls
Chemical elements of forged steel balls
Name |
C |
Mn |
Si |
Cr |
S |
P |
|||
60Mn |
0.57-0.65 |
0.70-1.0 |
0.17-0.37 |
0.25max |
0.035max |
0.035max |
|||
65Mn |
0.60-0.70 |
0.90-1.2 |
0.17-0.37 |
0.25max |
0.035max |
0.035max |
|||
75MnCr |
0.70-0.85 |
0.70-0.85 |
0.17-0.37 |
0.40-0.60 |
0.030max |
0.030max |
|||
Specification of forged steel Grinding balls |
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Nominal diameter |
Diameteical Tolerance |
Weight of single ball in average |
Surface hardness |
Impact toughness |
|||||
(mm) |
(mm) |
(g) |
(HRC) |
(j/cm2 ) |
|||||
Φ20 |
+2 -1 |
32 |
55-65 |
≥12 |
|||||
Φ25 |
64 |
||||||||
Φ30 |
110 |
||||||||
Φ40 |
263 |
||||||||
Φ50 |
513 |
||||||||
Φ60 |
+3 -2 |
888 |
|||||||
Φ70 |
1410 |
||||||||
Φ80 |
2104 |
||||||||
Φ90 |
2996 |
||||||||
Φ100 |
4110 |
||||||||
Φ110 |
+4 -2 |
5457 |
50-60 |
||||||
Φ120 |
7102 |
||||||||
Φ130 |
9030 |
||||||||
Φ140 |
+4 -3 |
11278 |
|||||||
Φ150 |
13871 |
Casting grinding balls
Item |
Chemical Composition(%) |
|||||||||
C |
Si |
Mn |
Cr |
P |
S |
Mo |
Cu |
Ni |
||
|
JCCr13 |
2.0-3.0 |
≤0.10 |
0.5-1.5 |
10-14 |
≤0.10 |
≤0.10 |
1.0Max |
2Max |
0-1.5 |
High chrome cast grinding balls |
JCCr17 |
2.0-3.0 |
≤0.10 |
0.5-1.5 |
14-17 |
≤0.10 |
≤0.10 |
3.0Max |
1 Max |
0-1.5 |
JCCr20 |
2.0-2.8 |
≤0.10 |
0.5-1.5 |
18-22 |
≤0.10 |
≤0.08 |
2.5 Max |
1 Max |
0-1.5 |
|
JCCr26 |
2.0-2.8 |
≤0.10 |
0.5-1.5 |
22-28 |
≤0.10 |
≤0.08 |
3 .0Max |
2 Max |
0-1.5 |
Item |
Brand |
C |
Si |
Mn |
Cr |
P |
S |
Mo |
Cu |
0-1.5 |
Middle Chrome Cast Grinding Balls |
JCCr7 |
2.1-3.2 |
0.5-2.2 |
0.5-1.5 |
6~10 |
≤0.10 |
≤0.10 |
0-1.0 |
0-0.8 |
0-1.5 |
Item |
Brand |
C |
Si |
Mn |
Cr |
P |
S |
Mo |
Cu |
Ni |
Low Chrome Cast Grinding Balls |
JCCr2 |
2.2-3.6 |
≤1.2 |
0.5-1.5 |
1.0-3.0 |
≤0.10 |
≤0.10 |
0-1.0 |
0-0.8 |
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