Primary standard name
Equivalent standard names
Related standards
Chemical composition
Element
Weight %
Comment
Element
Weight %
Comment
Element
Weight %
Comment
56.5 %
as Al₂O₃
41.26 %
as TiO₂
1 %
as ZrO₂ + HfO₂
0.05 %
as Na₂O
0.02 %
as Fe₂O₃
Material Information
Application areas
Crucibles, dosing tubes, riser tubes, nozzles, slide valves, spruce bushings
Crucibles, dosing tubes, riser tubes, nozzles, slide valves, spruce bushings
Typical application areas include: Foundries, non-ferrous metal forming industry, labware
Mechanical
Elastic modulus, E
16 GPa at 23 °C
10 GPa at 23 °C
20 GPa at 23 °C
Hardness, Vickers, HV
510 [-] at 23 °C
510 [-] at 23 °C
-
Plane-Strain Fracture Toughnes, KIC
3 - 5 MPa·√m at 23 °C
3 - 5 MPa·√m at 23 °C
-
Flexural strength, σbend
40 MPa at 23 °C
25 MPa at 23 °C
30 MPa at 23 °C
Weibull modulus, mW
40 [-] at 23 °C
60 [-] at 23 °C
-
General
Density, ρ
3.35 g/cm³ at 23 °C
3.32 g/cm³ at 23 °C
3.1 g/cm³ at 23 °C
Electrical
Electrical resistivity, ρel
1.00E+14 Ω·m at 23 °C
1.00E+14 Ω·m at 23 °C
1.00E+11 Ω·m at 23 °C
Thermal
Max service temperature, continuous, Tmax,cont
-
-
1100 °C
Coefficient of thermal expansion, α
1.4E-6 1/K at 23 °C
1E-6 1/K at 23 °C
1.5E-6 1/K at 1000 °C
Max service temperature, intermittent, Tmax,inter
-
-
1350 °C
Thermal conductivity, λ
1.4 W/(m·K) at 23 °C
1.4 W/(m·K) at 23 °C
2 W/(m·K) at 23 °C
Max service temperature, Tmax
1300 °C
1300 °C
-
Thermal shock parameter R1, R1
1500 °C
2000 °C
-