Product Details

ISO Certificated Brown Fused Alumina Factory Supply Corundum Powder Price

Brown Fused Alumina is fused in the electric-arc furnace under the high temperature of above 2250°C with high quality bauxite as raw material and matched by the carbon material and scrap iron .Then, it was crushed by autogenous mill, removed the iron through magnetic separation, screened to variety granularity.

Physical performance

ISO Certificated Brown Fused Alumina Factory Supply Corundum Powder Price
Size	36#
Crystals	Trigonal
Melting point	2250℃
highest used temperature	1900℃
Bulk density	1.53-1.99g/cm3
Specific Gravity	3.95-3.97g/cm3
Mohs Hardness	≥9.0
Ph Value	7.0
Magnetic materials contents	0.3%max
Coefficient of linear expansion	7-9(0 – 1600°C)
Refractoriness	2100℃

Chemical composition

Grade	Chemical Composition(%)
Grade	Al2O3	Fe2O3	SiO2	TiO2
A	92-96	0.2-1.0	1.0-3.0	1.5-3.8
B	85-90	6-10	1.5-4	2-4
C	70-80	8-15	2-5	3-5
D	55-65	12-20	15-25	4-6

Size distribution

ISO Certificated Brown Fused Alumina Factory Supply Corundum Powder Price
Sieve	%
+850um	0
+600um	≤25
+500um	≥45
+500um+425um	≥65
-355um	<3

The usages

Sandblasting brown corundum

Freedom grinding - abrasive materials

Resin Abrasives - Abrasive

Coated Abrasives

Corundum functional fillers

Abrasion resistance ground

Precision casting

Refractory material

the raw material

the usage

Available Sizes

Fraction		0-1mm 1-3mm 3-5mm 5-8mm...
Fine		-100mesh -200mesh -320mesh...
Grains		8# 10# 12# 14# 16#20# 22# 24# 30# 36# 46# 54# 60# 80# 100# 120# 150# 180# 220#
Micro powder (Standard)	W	W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5 W2.5 W1.5 W0.5
	JIS	240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000# 8000#
	FEPA	F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000