Manufacturer: Jinan Zhongwei Casting And Forging Grinding Ball
Co.,Ltd
Why Jinan Zhongwei ?
1 . Over 15 years Professional forging and casting grinding balls,
grinding cylpebs manufacturing experience, deserves your trust.
2 . High quality, competitive price and good service benefit our
customers.
3 . ISO9001 certified company, advanced oil quenching and heating
production line, together with advanced testing machines imported
from Germany are used to ensure the quality.
4 . Chemical analysis reports would be sent together with each
batch of grinding balls, even samples.
5 . Skilled sales & service team can provide timely good service.
6 . 50000 Tons annual production capacity can provide short Leading
time.
Product Name: cast iron balls
Product Type : Low Chromium, Medium Chromium, High Chromium
,Special High Chromium
The chemical composition of the cast iron balls
| Material | Chemical Elements |
| C | Si | Mn | P | S | Cr |
| Speical Cr 2 | 2.0-3.0 | < 1.0 | 0.5-2.0 | <0.08 | < 0.06 | > 20 |
| Speical Cr 1 | 2.0-3.0 | < 1.0 | 0.5-2.0 | <0.08 | < 0.06 | > 15 |
| High Cr | 2.0-3.2 | < 1.0 | 0.5-2.5 | <0.08 | < 0.06 | > 10 |
| Medium Cr | 2.0-3.2 | < 1.0 | 0.5-2.5 | <0.08 | < 0.06 | > 5 |
| Low Cr | 2.2-3.4 | < 1.2 | 0.5-1.5 | <0.08 | < 0.06 | 1.0-1.5 |
We can also manufacture the product with special chemical
composition in accordance with the requirements
of the customers.
Cast Iron Ball Hardness
| Material | 25mm-50mm HRC | 60mm-70mm HRC |
80mm-90mm HRC
|
| 60-64 |
| Speical Cr 2 | 58-62 | 60-64 |
| Speical Cr 1 | 58-62 | 58-62 | 58-62 |
| High Cr | 58-62 | 58-63 | 58-62 |
| Medium Cr | 45-48 | 45-48 | 45-48 |
| Low Cr | 42-46 | 42-46 | 42-46 |
Diameter, Diametrical tolerance, Weight, Impact toughness of cast
iron ball
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 |
Production Process of Jinan Zhongwei Cast Iron Balls
