HTW Germany


HTW Hochtemperatur-
Werkstoffe GmbH

Tel.: +49 (0)8271 81 86 10
Fax: +49 (0)8271 73 72
info@htw-germany.com

Physical properties

Table

Table

SIGRADUR® K
SIGRADUR® G
Maximum service temperature (vacuum or inert gas)
C
1000
3000
Density
g/cm3
1.54
1.42
Open porosity
%
0
0
Permeability coefficient
cm2/s
10-11
10-9
Vickers hardness
HV
340
230
Flexural strength1)
MPa
210
260
Young's modulus2)
GPa
35
35
Compressive strength1)
MPa
580
480
Specific electrical resistance (30C)
Ωm
50
45
Thermal conductivity (30C)
W/(Km)
4.6
6.3
Median linear coefficient of expansion (20-200C)
1/K
3.510-6
2.610-6
1) 4-piont-bending-test; specimen geometry: bead-molding, diameter 3mm, length 60 mm
2) specimen geometry: bead-molding, diameter 7 mm, length 10 mm


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