Supply Manufacturer export refractory materials of White Fused Alumina

1. High AL2O3 content: 99%min;
2.More than3.9 Bulk Density;
3. Barmac Grains;
4. Passed ISO9001:2000;
5.25 years experience.

White Fused Alumina

♣Description

• It is fused by alumina powder by electric arc furnace under high temperature.
•  It has white color and little higher hardness and lower toughness comparing with brown fused alumina.
• The micro hardness of the product is 2200-2300kg/mm². It has higher hardness and slight lower toughness comparing with brown fused alumina.
• It is also characterized by its high purity, acid and alkali resistance, good thermal stability.
• It’s the high grade refractory materials. 

♣ The  chenmical performance index

Purpose	Specification		Chemical Composition%
			Al2O3	Na2O	SiO2	CaO
For Abrasives	F	12#—80#	≥99.0	≤0.5	—	≤0.4
		90#—150#	≥98.5	≤0.6
		180#—240#	≥98.2	≤0.7	—	≤0.4
	W	1#-63#	≥97.5	≤0.8	≤1.0	≤0.5
Refractory	-	0-1mm 1-3mm 3-5mm 5-8mm 8-12mm	≥99.0	≤0.5	—	≤0.4
	Micro-powder	180#—0 200#-0 320#-0	≥98.5		≤0.3	≤0.5

 

♣Physical Performance Index

Item	Index
Color	White
Crystal shape	Trigonal
Hardness(mohs)	≥9.0
Melting Point (°C)	2250
True density (g/cm3)	≥3. 90
Linear Expansion Coefficient(0—1600°C)	7—9