Product and Technical Features: CADI Aobei Wear-Resistant Steel Balls
Apr 02,2026
1. High hardness and excellent wear resistance
The microstructure of Aube grinding balls (CADI/ADI) features uniformly distributed spheroidal graphite, with a matrix consisting of bainite and retained austenite containing a certain amount of carbides. During use, the retained austenite forms a high-hardness layer on the surface through impact and friction. As the grinding balls continue to wear, this high-hardness layer is continuously and automatically regenerated, thereby significantly enhancing the balls’ wear resistance.
2. Hard on the outside, tough on the inside; resistant to breakage
These grinding balls maintain excellent impact toughness while possessing high hardness. Data shows that their impact toughness can reach 12–21 J/cm². This “hard on the outside, tough on the inside” characteristic makes them resistant to breakage during high-speed operation or in large ball mills (such as semi-autogenous mills), significantly reducing the risk of downtime for ball replenishment.
3. Low Specific Gravity, Significant Energy Savings
Aobei grinding balls have a density of approximately 7.3 t/m³, which is 8% lighter than ordinary low-chromium balls, high-chromium balls, or forged balls (approximately 7.7 t/m³). As the mill’s loading capacity is reduced, startup and operating loads are correspondingly lowered, resulting in energy savings of about 8%. This also reduces wear on equipment components, thereby extending their service life.
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