Fused Zirconia Alumina grit sand from SICHENG ABRASIVES ZA 8#10#12#16#

Fused Zirconia Alumina grit sand from SICHENG ABRASIVES ZA 8#10#12#16#

Description

Fused Zirconia Alumina grit sand from SICHENG ABRASIVES ZA 8#10#12#16#

 

    

     Fused zirconia  alumina is produced by putting rich aluminum, zirconium materials and additives in electric furnace, smelting with high temperature above 2000°C,cooling down with special technology, and compacting with Barmac plastic, which has the characteristics of tenacious texture, dense structure and high strength.

 

    It takes the advantages of high strength, high toughness, high temperature resistance, which can manufacture heavy-duty wheel with high performance, and has achieved very good results in grinding steel, cast iron, heat-resistant alloy steel, titanium alloys, aluminum alloys and austenitic alloy steel. And it is widely used in the production of refractoriness in the steel industry such as continuous casting and rolling, flow channel, and zirconia brick as well. 

 

It is classified into ZA 25 and ZA 40 as the content of Zr02.

 

Fused Zirconia Alumina grit sand from SICHENG ABRASIVES

product

Al2O3

ZrO2

TiO2

Fe2O3

SiO2

ZA25

68%-72%

24%-30%

1.5%max

0.5%max

1.0%max

ZA40

55%-57%

35%-44%

1.5%max

0.5%max

1.0%max

 

 

Physical Characteristics

 

 

Fused Zirconia Alumina grit sand from SICHENG ABRASIVES

Crystal form

a-Al2O3+Al2O3-ZrO2

Reaction with acid and alkali

No

Color

Gray

True density

4.55g/cm3

Bulk density

2.18g/cm3

Moh's hardness

9.0

Knoop hardness

1450-2000kg/cm2

Meltingpoint

1900°C

Maximumservicetemperature

1700°C

Specific heat capacity(cal/g. °C)

0.2205(50-500°C)

Heat conductivity

0.2718 cal/cm2.sec. °C

Linear expansivity(X10-6)

6.82(100-700°C)

 

 

 

 

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