CeramTec Rubalit® A 1999.5 Alumina, 99.7%

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

(Viewing data as-entered. Click here to return)

CeramTec Rubalit® A 1999.5 Alumina, 99.7%
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	Rubalit® A 1999.5 (99.7%) is mechanically stronger, features a higher heat conductivity, and is more corrosion resistant than other aluminas. This high-purity aluminum oxide ceramic with carbon materials is especially suitable for plain bearings and seal rings.
Key Words:	Al2O3, aluminum oxide
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Original Value	Comments

Density	3.88 g/cc	DIN EN 623-2 / ASTM-C373 / ASTM-C20
Water Absorption	0.00 %	DIN EN 623-2 / ASTM-C373
Permeability	0.00	Gas
Weibull Modulus	>= 13	DINV ENV 843-5

Mechanical Properties	Original Value	Comments
Vickers Microhardness	1600	HV 0.5; DINV ENV 843-4
Tensile Strength at Break	380 MPa	ACMA Test #4 / DIN EN 843-1
Tensile Modulus	350 GPa	Young's; DINV ENV 843-2 / ASTM-F417
Flexural Strength	380 MPa	DIN EN 843-1
	400 MPa	Bending Strength; 4-Point Method (40x4x3 mm³); ASTM-F417
Compressive Strength	4000 MPa	ASTM C-773-88 / DIN 51067T1
Poissons Ratio	0.23	DINV ENV 843-2
Fracture Toughness	4.00 MPa-m½	DIN 51109
Shear Modulus	142 GPa	Calculated

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+7 ohm-cm @Temperature 800 °C	IEC 672-1
	>= 1.00e+12 ohm-cm @Temperature 400 °C	IEC 672-1
	>= 1.00e+15 ohm-cm @Temperature 20.0 °C	IEC 672-1
Dielectric Constant	10 @Frequency 1e+7 Hz	IEC 672-1 / ASTM-C150
Dielectric Strength	30.0 kV/mm	6.35 mm (1/4") IEC 672-1
Dielectric Loss Index	0.00050 @Frequency 1e+6 Hz	IEC 672-1 / ASTM-D149,150

Thermal Properties	Original Value	Comments
CTE, linear	7.50 µm/m-°C @Temperature 20.0 - 200 °C	DIN EN 821-1
	7.50 µm/m-°C @Temperature 20.0 - 400 °C	DIN EN 821-1
	7.50 µm/m-°C @Temperature 20.0 - 600 °C	DIN EN 821-1
	8.50 µm/m-°C @Temperature 20.0 - 1000 °C	DIN EN 821-1
Specific Heat Capacity	0.900 J/g-°C @Temperature 100 - 200 °C	DINV ENV 821-3
Thermal Conductivity	30.0 W/m-K	DIN EN 821-2 / ASTM-C408
Maximum Service Temperature, Air	1400 °C
Maximum Service Temperature, Inert	1400 °C

Component Elements Properties	Original Value	Comments
Al2O3	99.7 %

Descriptive Properties
Ra = Arithmetic Mean Roughness Value (µm)	Profilometer (0.8 mm Cutoff)
Surface Contact Area (%)	80-95
Thermal Shock Resistance R1 (K)	150	Hasselman (Experimental)

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

Users viewing this material also viewed the following:
CeramTec 614/698 Alumina, 96%
CeramTec 975 Alumina, 99.5%
CeramTec Rubalit® 702 Alumina, 85%
CeramTec Rubalit® A 1896 Alumina
CeramTec Rubalit® IS 95 Alumina

CCERA934 / 107534

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message