| Grinding Ball |
Tangshan Fengrun Shougang Metallurgy And Building Materials Co.,Ltd. |
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| Low Chrome Cast Iron Grinding Media Balls (LCCB) |
| Publisher:
admin Time:
2015-11-17 Visits:
136 |
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1-Balls Sizes: diameter 10mm to 150mm；
2- Grinding Media Ball Chemical Composition:
|
Name |
Grade |
Chemical Composition (%) |
|
C |
Si |
Mn |
Cr |
P |
S |
Mo |
Ni |
Cu |
|
Low Chrome Cast Iron Grinding Media Balls
(LCCB) |
ZQCR3 |
2.1~3.6 |
0.3~1.50 |
0.3~1.5 |
3~4 |
≤0.10 |
≤0.10 |
Res. |
Res. |
Res. |
|
ZQCR2 |
2.1~3.6 |
0.3~1.50 |
0.3~1.5 |
2~3 |
≤0.10 |
≤0.10 |
Res. |
Res. |
Res. |
|
ZQCR1 |
2.1~3.6 |
0.3~1.50 |
0.3~1.5 |
1~2 |
≤0.10 |
≤0.10 |
Res. |
Res. |
Res. |
|
ZQCR0 |
2.1~3.6 |
0.3~1.50 |
0.3~1.5 |
0.2~1 |
≤0.10 |
≤0.10 |
Res. |
Res. |
Res. |
3-Mechanical Property and Metallurgy Analysis：
|
Name |
Grade |
Surface Hardness
(HRC) |
Impact Toughness
(Ak J/cm2) |
Metallurgical Structure |
Dropping Balls Test/Fatigue Life Test (3.5Meter Height) |
|
Low Chrome Cast Iron Grinding Media Balls
(LCCB) |
ZQCR1-ZQCR3 |
45-50 |
≥1.5 |
P+C |
≤80 |
8000 |
|
>80 |
8000 |
|
ZQCR0 |
40-45 |
≥1.2 |
P+C |
≤80 |
8000 |
|
>80 |
8000 |
|
B-Pearlite， C-Carbide |
4- Grinding Ball Diameter Tolerance and Weight List.
|
Size Tolerance and Weight List |
|
Item |
Ball Diameter（mm） |
|
Ball Diameter |
≤30 |
30<Φ≤60 |
60<Φ≤90 |
Φ100-Φ150 |
|
Dia Tolerance (mm) |
`+1.5，-1 |
`+1.5，-1 |
`+2.5，-1 |
`+3，-1 |
|
Specific Diameter |
Unit Weight
(kg/pc) |
Quantity
（pieces per ton ） |
|
8mm |
0.0021 |
476190 |
|
10mm |
0.0041 |
243902 |
|
12mm |
0.0071 |
140845 |
|
15mm |
0.014 |
71429 |
|
17mm |
0.02 |
50000 |
|
20mm |
0.032 |
31250 |
|
25mm |
0.064 |
15625 |
|
30mm |
0.116 |
8620 |
|
35mm |
0.176 |
5682 |
|
40mm |
0.263 |
3802 |
|
50mm |
0.513 |
1949 |
|
60mm |
0.888 |
1126 |
|
70mm |
1.49 |
671 |
|
80mm |
2.104 |
475 |
|
90mm |
2.996 |
334 |
|
100mm |
4.11 |
243 |
|
110mm |
5.46 |
183 |
|
120mm |
7.1 |
141 |
|
125mm |
8 |
125 |
|
130mm |
9.03 |
111 |
|
140mm |
11.1 |
90 |
|
150mm |
13.6 |
73 |
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