Coefficient of mean linear thermal expansion
a (20°C; 300°C) acc. to DIN ISO
7991 |
3,3 · 10-6
K-1 |
Maximum short-time working temperature |
350ºC |
Densidad r at 25ºC |
2,23 g · cm-3 |
Modulus of elasticity E (Young's modulus) |
64 · 103 N · mm-2 |
Poisson's ratio m |
0,20 |
Thermal conductivity lw
at 90 °C |
|
Temperature for the specific electrical resistance
of 108 W · cm (DIN 52326) tk
100 |
250ºC |
Dielectric properties (1 MHz, 25°C) |
|
Dielectric
constant e |
4,6 |
Dielectric
loss factor (dissipation factor) tan S |
37 · 10-4 |
Refractive index nd (l
= 587,6 nm) |
1,473 |
Hydrolytic Class (ISO 719) |
HGB 1 |
Acid Class (DIN 12 116) |
Class S 1 |
Alkali Class (ISO 695) |
Class A 2 |