High quality brown fused alumina sand with 99.99% alumina / The manufacturer sells the special grade

Place of Origin:

Guangdong, China

Brand Name:

A12~A60

Model Number:

Boerai

Material:

alumina, carbon, iron

Usage:

sandblasting, polishing, abrasive

Abrasive Grain Sizes:

106-75u

name:

emery brown corundum/brown fused aluminum oxide in abrasive

color:

brown

shape:

particle

knoop hardness:

2000 - 2200 Kg/mm2

mosh hardness:

9.0

density:

3.90

melting point:

2500℃

Max temperature:

2200℃

Refractive index:

e=1.760 w=1.768(Na line)

Coefficient of linear expansion:

7 - 9