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PA-Medium Chromium

The FEPA P grades of Chrome corundum are a preferred material for working non-ferrous metals and the alloys (copper, aluminum, zinc, brass, Bronze), but also used for softer materials, such as wood, synthetics and paints.

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Description

Applications:

The FEPA F grades of Chrome corundum are especially suitable for the manufacturing vitrified bonded abrasives for working hardened steels and alloys with tensile strengths of over 50 kg/mm².Chrome corundum is also used in tool grinding, knife-sharpening applications, precision grinding, profile grinding, flute grinding, tooth grinding, dry grinding of blade segments and mounted wheels.

The FEPA P grades of Chrome corundum are a preferred material for working non-ferrous metals and the alloys (copper, aluminum, zinc, brass, Bronze), but also used for softer materials, such as wood, synthetics and paints.

High Chromium

Specification

Items/ Chemical  Composition

Unit

Index

Size:

F12-F80

Al2O3

%

98.2min

 

Cr2O3

%

0.45-1.00

 

Na2O

%

0.55max

F90-F150

Al2O3

%

98.20min

 

Cr2O3

%

0.45-1.00

 

Na2O

%

0.60max

F180-F220

Al2O3

%

97.80min

 

Cr2O3

%

0.45-1.00

 

Na2O

%

0.70max

Physical Property

Basic Minerals

 

α— AI2O3

 

Crystal size   

μm

600~2000

 

True density   

g/cm3

≥3.90

 

Bulk density  

g/cm3

1.40~1.91

 

Knoop hardness 

g/mm2

2200~2300

 

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