High-Alumina FireBricks
Skyline Components can supply high-alumina bricks that contain 45 - 95%
of alumina that can be used at high temperature up to 3200 °F.
Characteristics
Low thermal conductivity
Excellent thermal stability
and high temperature strength
High t
hermal shock resistance
Excellent corrosion resistance
High Purity
Specification of Typical High Alumina FireBricks
Code
SK35
SK36
SK37
SK38
SK40
Refractoriness under Loading
≥ 2580 °F
≥ 1420 °C
≥ 2670 °F
≥ 1470 °C
≥ 2730 °F
≥ 1500 °C
≥ 2760 °F
≥ 1520 °C
≥ 2820 °F
≥ 1550 °C
Density
137 lb/ft^3
2.2 g/cm^3
144 lb/ft^3
2.3 g/cm^3
150 lb/ft^3
2.4 g/cm^3
156 lb/ft^3
2.5 g/cm^3
181 lb/ft^3
2.9 g/cm^3
Cold Crushing Strength (MPa)
≥ 40
≥ 45
≥ 49
≥ 55
≥ 65
Porosity (%)
≤ 22
≤ 22
≤ 22
≤ 22
≤ 20
Reheating Linear Change (%)
-0.4 - +0.1%
(at 1450°C
for 3 hours)
-0.4 - +0.1%
(at 1500°C
for 3 hours)
-0.4 - +0.1%
(at 1500°C
for 3 hours)
-0.4 - +0.1%
(at 1500°C
for 3 hours)
-0.2 - +0.1%
(at 1500°C
for 3 hours)
Chemical
Composition
Al2O3
48%
55%
65%
75%
80%
Fe2O3
≤ 2%
≤ 2%
≤ 1.8%
≤ 1.8%
SiO2
47
41
30
21
Skyline Components, LLC
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apes
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ubing
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