FireClay Bricks
Characteristics

  • Low thermal conductivity
  • Excellent thermal stability and high temperature strength
  • High thermal shock resistance
  • Excellent corrosion resistance
Specification of Typical Fireclay Bricks
Code
SK31
Sk32
Sk33
SK34
Refractoriness under Loading
≥ 2330 °F
≥ 1280 °C
≥ 2370 °F
≥ 1300 °C
≥ 2370 °F
≥ 1300 °C
≥ 2460 °F
≥ 1350 °C
Density
128 lb/ft^3
2.05 g/cm^3
128 lb/ft^3
2.05 g/cm^3
134 lb/ft^3
2.15 g/cm^3
137 lb/ft^3
2.20 g/cm^3
Cold Crushing Strength (MPa)
15
20
20
25
Porosity (%)
≤ 26
≤ 26
≤ 26
≤ 23
Permanent Linear Change (%)
±0.5%
(at 1400°C
for 2 hours)
±0.5%
(at 1400°C
for 2 hours)
±0.5%
(at 1400°C
for 2 hours)
±0.5%
(at 1400°C
for 2 hours)
Chemical Composition
Al2O3
≥28%
≥30%
≥34%
≥38%
Fe2O3
≤ 3%
≤ 3%
≤ 3%
≤ 2.5%
Specification of Typical Low-Porosity Fireclay Bricks
Code
LP10
LP12
LP15
LP18
Refractoriness under Loading
≥ 2730 °F
≥ 1500 °C
≥ 2700 °F
≥ 1470 °C
≥ 2640 °F
≥ 1450 °C
≥ 2550 °F
≥ 1400 °C
Density
150 lb/ft^3
2.40 g/cm^3
147 lb/ft^3
2.35 g/cm^3
144 lb/ft^3
2.30 g/cm^3
140 lb/ft^3
2.25 g/cm^3
Cold Crushing Strength (MPa)
70
65
60
48
Porosity (%)
≤ 10
≤ 12
≤ 15
≤ 18
Reheating Linear Change (%)
-0.1 - +0.05
(at 1400°C
for 2 hours)
-0.1 - +0.05
(at 1400°C
for 2 hours)
-0.2 - 0
(at 1400°C
for 2 hours)
-0.4 - 0
(at 1400°C
for 2 hours)
Chemical Composition
Al2O3
≥45%
≥45%
≥42%
≥42%
Fe2O3
≤ 1%
≤ 1.2%
≤ 1.7%
≤ 1.8%
Fireclay bricks
Fireclay bricks
Fireclay bricks
Tucson, Arizona, USA
Skyline Components, LLC