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Product Details

Brown Fused Alumina Barmac Sand

The abrasive grains of this kind of product is crashed by Barmac processing line. It is characterized by its high bulk density, high purity, dense texture, strong self-sharpening, good toughness and extremely low magnetic content.
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  • F4-F240

  • SEPPE

  • 20220511


Introduction

The abrasive grains of this kind of product is crashed by Barmac processing line. It is characterized by its high bulk density, high purity, dense texture, strong self-sharpening, good toughness and extremely low magnetic content. It can be made into abrasive tools that has the advantages of sharp grinding, low heat generation rate, high grinding ratio, and less adhesion in the using course.


The sintered abrasives produced have the characteristics of dark blue color after firing, no resillage and no rust spots, etc. After washing, the dust is reduced to a minimum. It is suitable for the manufacture of ceramic, resin high-bonded abrasive tools, as well as grinding and polishing materials, etc.



Technical Data

ItemSpecification
ColorDark Brown
Crystal SystemAlpha-alumina trigonal system
Mohs  Hardness≥9.0
Melting Temperature (℃)2050
Refractory Temperature (℃)1800
True Density≥3.90
Magnetic Material0.01%



Common size

Grit No.F12F14F16F20F22F24F30F36
Bulk density2.02-2.102.00-2.081.97-2.051.94-2.021.92-2.001.90-1.981.88-1.961.87-1.95
Grit No.F40F46F54F60F70F80F90F100
Bulk density1.81-1.891.79-1.871.77-1.851.76-1.841.75-1.831.73-1.811.71-1.791.64-1.72
Grit No.F120F150F180F220



Bulk density1.61-1.691.59-1.671.57-1.651.55-1.63