92% 95% al2o3 high density alumina ceramic balls for ball mill

Model:	AB15033002
Brand:	Jinyu
Origin:	Made In China
Category:	Chemicals / Biochemical
Label:	Grinding balls , Alumina ceramic ball , inert balls
Price:	US $6.54 / KG
Min. Order:	10 KG

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Product Description

92% 95% al2o3 high density alumina ceramic balls for ball mill

Specifications:

ceramic alumina mill ball
High wear-resistance
95%,92%, 75%, 60% Al2O3
ISO:9001:2008 Certified
low wear loss

Product Features:

1.Whiteness,Ultra-low wear loss.

2.Smooth surface,good sphericity.

3.Excellent cost,effective perfomance.

4.High crush strength which has no any break under high speed impact.

Key benefits:

·Extremely cost effective
·Improves grinding efficiency and energy costs
·Longer service time due to low wear rate
·Contamination-free to the color and composition of the ground material
·Technical support provided to optimize milling conditions

95%/99%/99.7%/92%/90%/80% Al2O3 Material Parameters:

Item	Test Condition	Unit&Symbol	95%Alumina ceramics	99%Alumina ceramics	99.7%Alumina ceramics
The main chemical ingredient			Al2O3	Al2O3	Al2O3
Bulk Density		g/cm	3.6	3.89	3.96
Maximum Use Temperature			1450°C	1600°C	1650°C
Water absorption		%	0	0	0
ROHS Hardness			≥85	≥89	≥89
Flexural strength	20° C	MPa (psi x 103)	358 (52)	550	550
Compressive Strength	20° C	MPa (psi x 103)	2068 (300)	2600(377)	2600(377)
Fracture Toughness	K(I c)	Mpa m1/2	4-5	5.6	6
Coefficient of thermal expansion	25-1000° C	1X 10-6/°C	7.6	7.9	8.2
Coefficient of thermal conductivity	20° C	W/m °K	16	30.0	30.4
Thermal Shock Resistance	Tc	°C	250	200	200
Dielectricity constant	1MHz.25°C		9	9.7	9.7
Dielectric strength		ac-kV/mm (ac V/mil)	8.3 (210)	8.7 (220)	8.7 (220)
Volume Resistivity	100°C	ohm-cm	> 1013	> 1014	> 1014