Cr10%-Cr18% Cement Mill Grinding Ball High Chrome Steel Grinding Media Balls
Product Description
High Chrome Steel Grinding Media Balls for cement mill, raw material mill, and coal mill are specialized grinding media used in the cement and coal industries. These grinding balls are designed to withstand the harsh operating conditions and abrasive environments encountered in these mills.
Cement mills, raw material mills, and coal mills are key equipment in the cement and coal production processes. In these mills, the raw materials (such as limestone, clay, iron ore) or coal are ground to a fine powder, which is then used to produce cement or generate energy in the case of coal.
The special high chromium balls are made from an alloy that contains a high percentage of chromium, typically ranging from 10% to 30%.
Chromium is added to the steel composition to enhance its hardness, wear resistance, and corrosion resistance properties. The high chromium content provides excellent resistance against abrasive wear, making these balls highly suitable for grinding applications where the grinding media is subjected to intense impact and abrasion.
Technical Parameters
① Material: Cr10%, Cr12%, Cr15%, Cr18%
② Hardness: HRC57-65
③ Impact value: ≥4.0 J/cm2
④ Broken rate after use: ≤0.3%
⑤ Grinding ball specifications: φ4.8mm—φ100mm
| product name | Special high chromium balls for cement mill, raw material mill and coal mill | ||||||
| chemical composition(%) | C | Si | Mn | Cr | S | P | Y |
| 1.8-3.3 | 0.3-1.2 | 0.2-1.0 | 10.0-20.0 | ≤0.08 | ≤0.08 | ≤0.10 | |
| Mo | Nb | Ti | V | Cu | Al | W | |
| microscale | microscale | microscale | microscale | microscale | microscale | microscale | |
| mechanical properties | Microstructure | Impact value AK(J/cm3) | hardness(HRC) | Falling ball impact fatigue life (number of times) | |||
| M+C+A | ≥4.0 | 57-65 | ≥30000 | ||||
| Remark:M—martensite C—carbide A—retained austenite | |||||||
Product Application
In cement mills, the special high chromium balls helps improve the grinding efficiency and reduce energy consumption. These balls effectively crush and grind the raw materials into fine particles, allowing for a more efficient cement production process. Additionally, the high chromium content ensures a longer lifespan for the grinding media, reducing the frequency of replacements and maintenance downtime.
In coal mills, the special high chromium balls are used to grind coal into a fine powder, which is then used as fuel in kilns or power plants. The high chromium balls can withstand the high impact forces and abrasive conditions encountered in coal grinding, ensuring a consistent and efficient coal pulverization process.
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