High Alumina Castable

  • High Alumina Castable

Product Description And Parameters

Main Composition:Al2O3

Application:Blast furnace and other industrial kilns.

Raw Material:Bauxite

Use Temperature:1400- 1550℃

Capacity:3000 MT per month

Color:Grey

High Alumina Castable is a kind of refractory castable which uses high alumina raw material as aggregates and and then be added with binding agent.Its use temperature is 1400- 1550℃. It has high mechanical strength and good resistance to thermal shock and abrasion.

Features
1.High Mechanical Strength.
2.Good Thermal Shock Resistance.
3.Good Corrosion Resistance.

Application
It's mainly used for furnace lining of boiler, blast furnace hot blast stove, heating furnace, ceramic kiln and various industrial furnaces.

Item High Alumina Castable
DLG-80 DLG-70 DLG-60 DLG-50
Al2O3(%) ≥80 ≥70 ≥60 ≥50
CaO(%) ≥2.5 ≥2.5 ≥2.5 ≥2.5
Bulk density(g/cm3) 110°C×24h ≥2.75 ≥2.60 ≥2.50 ≥2.40
1500°C×3h ≥2.70 ≥2.60 ≥2.40 ≥2.40
Compression Strength(MPa) 110°C×24h ≥45 ≥45 ≥40 ≥40
1500°C×3h ≥75 ≥70 ≥60 ≥60
Bending Strength(MPa) 110°C×24h ≥7 ≥6 ≥6 ≥6
1500°C×3h ≥10 ≥10 ≥8 ≥8
Linear Change(%) 110°C×24h ≤-0.1 ≤-0.1 ≤-0.1 ≤-0.1
1500°C×3h ≤-0.5 ≤-0.5 ≤-0.5 ≤-0.5
Max Working Temperature(℃) 1600 1500 1450 1400

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