Product Description
BNZ Materials 9 x 6.75 x 3 - 2.75" 2800°F #1 Wedge Insulating Firebrick - 8ct Box
PN: BNZ 28 #1 Wedge
Made from high purity refractory clays and other ceramic raw materials, these IFB contain a carefully graded organic filler which is burned out during manufacture to give a uniform controlled pore structure.
Size: 9 x 6.75 x 3 - 2.75"
Qty in Each Box: 8
ASTM Classification: 28
Temperature Use Limit (normal oxidizing atmosphere): 2800°F / 1538°C
Density Avg. ATSM C 134: 55 lb/ft³, 881 kg/m³, 3.2 lb/BEq, 1.5 kg/str.
Modulus Of Rupture ASTM C 133: 220 lb/in², 1.5 MPa, 15.5 kg/str.
Cold Crushing of Strength ATSM C 133: 340 lb/in², 2.3 MPa, 23.9 kg/cm²
Reversible Linear Thermal Expansion at 2000°F (1093°C): 0.65
Thermal Conductivity ASTM C 182:
- 500°F / 2.3
- 260°C / 0.33
- 1000°F / 2.4
- 538°C / 0.35
- 1500°F / 2.6
- 816°C / 0.37
- 2000°F / 2.7
- 1093°C / 0.39
Chemical Analysis:
- Alumina – Al2O3: 67.0
- Silica – SiO2: 30.5
- Ferric Oxide – Fe2O3: 0.3
- Titanium Oxide – TiO2: 0.9
- Calcium Oxide – CaO: 0.3
- MgO: 0.0
- Alkalies, as Na2O & K2O: 1.0
