ZAB40

ZAA25

Vitrified Bonded Grinding Wheel

ZAB25

Chemical Composition

ZAA40

               ZAB40

Specification (%)

Typical (%)

Specification (%)

Typical (%)

Al2O3

55 - 58

57.73

55 – 60

58.80

ZrO2

35 - 44

41.58

35 - 42

39.23

SiO2

<0.30

0.15

<0.50

0.21

TiO2

<0.30

0.18

<1.5

1.29

Fe2O3

<0.10

0.046

<0.3

0.097

               ZAA25

              ZAB25

Specification (%)

Typical (%)

Specification (%)

Typical (%)

Al2O3

68 – 72

71.85

68 – 72

70.47

ZrO2

23 – 28

25.82

23 – 28

26.53

SiO2

<0.50

0.36

<0.60

0.52

TiO2

<0.50

0.41

<1.50

1.26

Fe2O3

<0.10

0.02

<0.30

0.16

Physical Properties

Color

Grey

Specific Gravity

Zir-25 : 4.05 g/cm3     Zir-40 : 4.6 g/cm3

Loose bulk density

1.72 - 2.22  g/cm3

Melting point

1950 degree C

Hardness

9.2 Mohs

Structure

Micron Crystal

Crystal size

5 - 15 micron meter