Our selling points
(1) High hardness: surface hardness of casting iron balls is to HRC 58-65. The tolerance of the core hardness and surface hardness is not over 2HRC;
(2)
Good Impact Toughness: impact toughness of chrome balls is more than 4J/cm²;
(3)
Low Breakage Rate: the actual breakage rate is not higher than 0.5%;
(4)
Good Wear-resistant: the wearing rate of high cast iron ball is 30-50g/ton in cement industry, 350-430g in gold mines and even lower in some iron mines.
Chemical Elements
Product Name
Chemical Element（%）
High Chromium Grinding ball
C
Si
Mn
S
P
Cr
Mo
Cu
Ni
2.0-3.0
0.3-1.2
0.3-1.5
≤0.08
≤0.08
＞14
≤0.5
≤0.5
micro
力学性能与金相组织
Product Name
表面硬度
（HRC）
落球冲击疲劳寿命
Times of Falling Balls
High Chromium Grinding ball
≥58
>8000
