Semi-Friable Brown Aluminum Oxide Microgrits

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Description

GNPGraystar’s Semi-Friable Brown Aluminum Oxide is fused in an electric arc furnace and produces a self-sharpening fused abrasive grain. GNPGraystar’s semi-friable brown aluminum oxide is a low to medium bulk density product which is available in standard grades or can be custom graded for your application.

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

PropertyValueComment

Hardness, Knoop, HK2

2100 [-]

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Knoop (100)

Hardness, Mohs

9.0 [-]

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Thermal

PropertyValue

Melting point

2000.0 °C

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Chemical properties

PropertyValueComment

Aluminium

98.3 %

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Al₂O₃

Calcium

0.02

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CaO

Iron

0.04 %

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Fe₂O₃

Silicon

0.04 %

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SiO₂

Titanium

1.58

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TiO₂

Technological properties

Property
Application areas

GNPGraystar’s Semi-Friable Brown Aluminum Oxide is used in all types of bonded and coated abrasive applications for ferrous and normal alloy steels.

Certifications

ANSI and FEPA

Agency & Mil-Specs (such as A-A-59316 & MIL-A-22262B)

Pratt & Whitney, Rolls Royce, Praxair, Stryker, etc.

Color

Brown

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