99% alumina ball for support media

It is called pure alumina ball. Equaled Denstone®99 Support Media. It is in chemical composition99+% alpha alumina and a maximum 0.2wt% SiO2. Because of its high alumina content and low silica(SiO2), it's a very excellent and ideal product for high temperature and steam applications. It has a high purity, excellent thermal propertoes.high temperature, high pressure resistance. And low water adsorption.

Type			Inert Alumina Ball-99
Color			White
Shape			Ball
Chemical composition			Min. %					Max. %		Usual %
	Al2O3		99					99.6		99.3
	SiO2		/					0.2		0.18
	Fe2O3		/					0.2		0.02
	TiO2		/					0.55		0.02
	CaO		/					0.1		0.02
	MgO		/					0.1		0.05
	Na2O		/					0.25		0.1
	K2O		/					0.2		0.13
Physical properties	Leachable Iron (%)							≤0.01
	Apparent Porosity by Weight (%)							≤7.0
	H2O absorption (wt.%)							＜4.0
	Acid resistance (%)							＞99.8
	Alkaline resistance (%)							≥90
	Bulk Density				(g/cm3)			2.1
					(lb/ft3)			131
	Specific density				(kg/m3)			3400
					(lb/ft3)			212
	Moh’s hardness (scale)							＞8.0
	Thermal conductivity (w/m2.k)							0.7-0.8
	Max. Operating Temperature				(℃)			1550
					(℉）			2822
	Thermal expansion (%) (500℃)							0.10
	Thermal Shock Stability (times) (1000℃ then water cooling)							10
Geometric properties	Nominal Size	(mm)		3	6	10	13	16	19		25	38	50
		(inch)		1/8	1/4	3/8	1/2	5/8	3/4		1	1.5	2
	Crush Strength Min.	(lbs)		115	230	440	1355	1720	3344		3432	4034	4960
		(kg)		52	105	200	615	780	1520		1560	1830	2250
		(N/PC)		510	1030	1961	6031	7650	14896		15288	17946	22065