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CeramTec 433 Alumina, 99.9%

Category Ceramic , Oxide , Aluminum Oxide
Manufacturer CeramTec North America
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF CeramTec 433 Alumina, 99.9%.pdf
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Material Notes:
433 (99.9%) is an alumina that exhibits high hardness. Its fine, equiaxial microstructure provides excellent sliding and abrasive wear resistance. This material is ideal for corrosive conditions. A higher degree of surface finish (approaching 0.2 µin., Ra) is available for applications such as textile guides and mechanical seals.
Physical Properties Metric English Comments
Density 4.00 g/cc
0.145 lb/in³
DIN EN 623-2 / ASTM-C373 / ASTM-C20
Water Absorption 0.00 %
0.00 %
DIN EN 623-2 / ASTM-C373
Mechanical Properties Metric English Comments
Vickers Microhardness 2000
2000
HV 0.5; DINV ENV 843-4
Tensile Strength at Break 241 MPa
35000 psi
ACMA Test #4 / DIN EN 843-1
Tensile Modulus 400 GPa
58000 ksi
Young's; DINV ENV 843-2 / ASTM-F417
Flexural Strength 414 MPa
60000 psi
20 x 40 mm
Compressive Strength 2700 MPa
392000 psi
ASTM C-773-88 / DIN 51067T1
Poissons Ratio 0.30
0.30
DINV ENV 843-2
Fracture Toughness 4.20 MPa-m½
3.82 ksi-in½
DIN 51109
Shear Modulus 138 GPa
20000 ksi
Thermal Properties Metric English Comments
CTE, linear 8.00 µm/m-°C
4.44 µin/in-°F
DIN EN 821-1
6.70 µm/m-°C

@Temperature 20.0 - 200 °C
3.72 µin/in-°F

@Temperature 68.0 - 392 °F
7.70 µm/m-°C

@Temperature 20.0 - 600 °C
4.28 µin/in-°F

@Temperature 68.0 - 1110 °F
ASTM-C373
8.20 µm/m-°C

@Temperature 20.0 - 1000 °C
4.56 µin/in-°F

@Temperature 68.0 - 1830 °F
Specific Heat Capacity 0.900 J/g-°C

@Temperature 100 - 200 °C
0.215 BTU/lb-°F

@Temperature 212 - 392 °F
DINV ENV 821-3
Thermal Conductivity 37.0 W/m-K
257 BTU-in/hr-ft²-°F
DIN EN 821-2 / ASTM-C408
Maximum Service Temperature, Air 1550 °C
2820 °F
Component Elements Properties Metric English Comments
Al2O3 99.9 %
99.9 %
Electrical Properties Metric English Comments
Volume Resistivity >= 1.00e+14 ohm-cm
>= 1.00e+14 ohm-cm
ASTM-D257
Dielectric Constant 10

@Frequency 1.00e+6 Hz
10

@Frequency 1.00e+6 Hz
IEC 672-1 / ASTM-C150
Descriptive Properties Value Comments
Color Light Pink
Thermal Shock Resistance R1 (K) 225
Hasselman (Experimental)
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