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High alumina refractory Castable

High alumina refractory Castables is categorized into the unshaped monolithic refractory.

Product Introduction

High alumina refractory Castables is categorized into the unshaped monolithic refractory.They are dense refractory castables made of refractory clay and high alumina raw materials,It made of high alumina bauxite as clinker, refractory clay as powder. Then dded refractory aluminate cement and sodium tripolyphosphate according to the proportion of the mixture, and its service temperature is 1400-1550℃.

Characteristics of High Alumina refractory Castable

1.High strength and good toughness.

2.Good wear resistance and corrosion resistance.

3.High mechanical strength.

Technical Parameters of High Alumina refractory Castable

Item High Alumina refractory Castable
Al2O3 ,%≥ ≥60 ≥65 ≥70
Maximum use temperature,℃ 1400 1450 1500
Bulk Density,g/cm3 ≥ 110℃×24hAfter drying ≥2.40 ≥2.60 ≥2.80
Compressive Strength,Mpa ≥ 110℃×24hAfter drying ≥55 ≥60 ≥65
1000℃×3h After burning ≥80 ≥90 ≥100
Bending Strength,Mpa ≥ 110℃×24h After drying ≥7 ≥8 ≥9
1000℃×3h After burning ≥9 ≥11 ≥13
Linear Change Rate, % 1000℃×3h ±0.3 ±0.3 ±0.3

High Alumina refractory Castable Application:

High alumina refractory castable are widely applied in high heat industries. Specifically, they are used in building power plant, blast furnace, melting furnace, heating furnace, soaking furnace, heat treatment furnace and induction furnace in different parts.

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