high chromium alloyed grinding ball

1.high density
2.high hardness
3.high wear resistance
4.ISO 16949 Certification

The alumina grinding ball has been widely used in ball mills as abrasive media for

ceramic raw materials and glaze materials in ceramic factories, cement factories,

enamel factories and glasswork owing to the excellence of high density, high hardness, high wear resistance. During the abrasive/grinding processing, ceramic balls will not break up,

it will not pollute the grinded material as well. 

Grinding balls main technical parameter

Al2O3Content	proportion	dont hardness	compression strength	water absorbtion	wearing and tear rate
55-65-95%	2.7-2.7-3.7g/mm3	≥8.5	≥1690MPa	≤0.2%	0.05%

 

Compression Resistance stress	Validweight Intenerate Temperature	Fire Resistance	Channel Density	Refire Shrinkage
≥500kg/CM2	0.1MPa-1450	≥1790	≤21	≤0.1%

 

 Physical Functions

product Name	Proportion g/cm3	Wearing and tear rate g/kg.h	Water absorption %	Grade Mohs Hardness
high Aluminum ceramic balls	3.2-3.5	≤0.3	≤0.05	6
middle Aluminum ceramic balls	2.5-2.7	≤0.5	≤0.2	7
	2.8-2.9	≤0.4	≤0.05	8
Ceramic Balls	2.2-2.4	≤5.0	≤0.5	6

 

Chemical Functions

product Name	Al2O3 (%)	SiO2 (%)	Fe2O3 (%)	other (%)
high Aluminum ceramic balls	75-95	24-4	0.3	0.7
middle Aluminum ceramic balls	55-65	40-30	0.5	4.5
corundum nitride ball	60-70	35-25	0.5	4.5
Ceramic Balls	19-23	76-72	0.5	4.5