White Aluminum Oxide Microgrits

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Description

GNPGraystar’s White Aluminum Oxide is electrically fused in an arc furnce using Bayer process high purity alumina. The final product is used in applications where higher purity levels and lower iron content is desired as compared to brown aluminum oxide

This material data has been provided by GNPGraystar Specialty Materials.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

Properties

General

PropertyValue

True particle density

3.95 g/cm³

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Mechanical

PropertyValue

Hardness, Mohs

9.0 [-]

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Thermal

PropertyValue

Melting point

2000.0 °C

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Chemical properties

PropertyValueComment

Aluminium

99.26 %

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Al₂O₃

Iron

0.08 %

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Fe₂O₃

Silicon

0.02 %

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SiO₂

Sodium

0.6 %

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Na₂O

Technological properties

Property
Application areas

GNPGraystar’s White Aluminum Oxide macrogrits are used in surface grinding, external and internal cylindrical grinding, creep-feed grinding of low or unalloyed steel. General industrial applications include pressure blasting, microderm abrasion, lapping, anti-skid, and refractories.


GNPGraystar’s White Aluminum Oxide microgrits are used for precision lapping, micro blasting, fine grit bond and coated applications, thermal coatings, polishing compounds, and more.

Certifications

ANSI and FEPA (Macrogrits); FEPA and JIS (Microgrits)

Agency & Mil-Specs

Color

White

Crystal structure

Alpha - Alumina

Other

Test Methods
Microgrit Sizing:FEPA F Standard 42-2:2006
FEPA P Standard 43-2:2006
JIS R 6001-1987
Custom Sizes Available