Brand name

index

Corundum wear-resistant plastic

Abrasion resistant plastic

Medium plastic

Micro expansion plastic

Light insulation castable

Camting material

AI2O3 %

≥80

≥70

≥55

≥50

SiO2 %

≤15

≤20

≤33

Fe2O3 %

≤1.0

≤1.8

Bulk density g/cm3

≥2.7

≥2.6

≥1.8

2.2-2.6

≤0.8

≤1.0

0.6-0.8

Compressive strength Mpa110℃

≥85

≥70

≥20

≥20

≥3

≥4

Compressive strength Mpa540℃

≥5

≥6

Compressive strength Mpa1100℃

≥95

≥80

≥25

≥30

≥5

≥10

Flexural strength Mpa110℃

≥8

≥7

≥4

≥4

≥0.5

≥0.7

Flexural strength Mpa1100℃

≥14

≥9

≥5

≥6

Refractoriness ℃

≥1800

≥1790

≥1650

≥1730

≥1100

≥1250

≥1000

Sinteredliner change

（1100℃×3h）%

±0.5

±0.6

±0.3

±0.1

±0.6

±0.5

Thermal  stability（1100℃wingcyele）

≥35

≥35

≥16

≥30

Service temperature℃

800

Abrasiceness cc

≤6

≤7

Thermal conductivity w/m.k

≤0.3

≤0.38

≤0.25