naterial

65 porcelain

75 porcelain

80 porcelain

85 porcelain

90 porcelain

95 porcelain

99 porcelain

al₂o₃

65

75

80

85

90

93

99.3

fe₂o₃

≤ 4

≤ 2

≤ 1.5

≤ 1.0

≤ 0.5

≤ 0.5

≤ 0.3

desnsity:g / cm³

2.8

3.10

3.20

3.40

3.50

3.60

3.85

vickers hardulus

7.5

≤ 7.8

≥ 8

≥ 8.6

≥ 8.8

9

9

water absorption: %

≤ 4

≤ 1

≤ 0.5

≤ 0.2

≤ 0.1

≤ 0.085

≤ 0.01

refractoriness:'C

1300 'C

1400 'C

1450 'C

1580 'C

1600 'C

1650 'C

1800'C

flexural strength: mpa

80

100

150

180

200

240

280

wear rate( at room temperature, erosion, 100 grinding) %

≤ 5

≤ 4.5

≤ 3.5

≤ 3

≤ 2.5

≤ 1

≤ 0.5