Diameter 70mm high Impact Toughness B2 material Forged Grinding Ball
Breif Description:
Size: 20-150mm Inspection: SGS/BV/TUV
Origin: Shandong Province, China
| Material | Chemical Elements | |||||
| C | Si | Mn | P/S | Cr | Hardness (HRC) | |
| 45# | 0.42-0.50 | 0.17-0.37 | 0.5-0.8 | <0.035 | <0.25 | 60-65 |
| 60MN | 0.55-0.65 | 0.17-0.37 | 0.7-1.0 | <0.04 | <0.25 | 58-63 |
| B2 | 0.72-0.85 | 0.17-0.37 | 0.7-1.0 | <0.04 | 0.4-0.6 | 55-58 |
| B3 | 0.5-0.8 | 1.0-1.8 | 0.4-1.0 | 0.035 | 0.5-1.0 | 56-63 |
|
Nominal diameter (mm) |
Diametrical tolerance (mm) |
Weight of Single of grinding ball in average |
Number of piece of One ton grinding ball in average |
Impact toughness |
|
DIA 20MM DIA 25 MM DIA 30 MM DIA 40 MM DIA 50 MM |
+2 -1 |
32 64 110 263 513 |
31250 15625 9090 3802 1949 |
≥12 |
|
DIA 60 MM DIA 70 MM DIA 80 MM DIA 90 MM DIA 100 MM |
+3 -2 |
888 1410 2104 2996 4110
|
1126 709 475 333 243 |
|
|
DIA 110 MM DIA 120MM DIA 130 MM |
+4 -2 |
5457 7102 9030 |
182 140 110 |
|
|
DIA 140 MM DIA 150 MM |
+4 -3 |
11278 13871 |
88 72 |
Feature:
1) High Hardness: The surface hardness of forged and rolling balls is to 60-65 HRC and volume hardness is to 60-63 HRC
2) High Impact Toughness: The impact toughness is more than 12 J/cm2;
3) Low Broken Rate: The actual broken rate is not higher than 1%;
4) Even Wear-resistance: The loss of ball round rate is 50-300 g/ton.
The production process of the forged grinding balls
1). Raw material:
All the material is qualified with certificate and made in the Chinese largest steel production enterprise.
2). Different steel specifications ccording to the clients's requirements.
Main Steel Material :C45 Steel;60Mn Steel;B2 Steel
3). Steel Cutting:
the steel bars should be cut into small pieces according to the size of steel balls required by the order.
4). Heating:
we use the electric furnace instead of the traditional coal stove, the biggest advant
