Refractive index (nd) 1.47200 *|k/l I
Dispersion (nF- nC) 0.00719 `1"Xj ^
YM
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 w.\#!@kZ!
Thermal conductivity (W/(m * °C)) 1.14 3L(vZ2&
Average thermal capacity (KJ/ (kg * °C)) 0.83 Qz/1^xy
Maximal operation temperature (°C) %1VfTr5
Short Term -dsE9)&8DX
Long Term ZtqN8$[6n
Thermal stability 0^rDf
L
500 B>W!RyH8o
450 E`>u*D$un~
375 4EDwZR>./
Density (g/cm3) 2.23 S?Z"){
Elastic modulus E (kN/mm3) 64 RP4P"m(
Hardness (HK) 480 x(/{]$h
Poission's Ratio 0.2 9N]V F'
Climatic resistance (ISO - 719 - HGB) Grade 1 kI>PaZ`i)
Acid resistance Grade 1 MUd
9R
Alkali resistance Grade 1 )S6"I
Melting temperature (°C) 1680 zwJVi9sO
Working Point (°C) 1252 ",qJG]_ <
Softening Point (°C) 820 ± 10 _l;$<]re\k
Annealing Point (°C) 560 ± 10 _lj&}>l
Stress Point (°C) 510 ± 10 <rpXhcR
Surface Tension (dyn/cm) 340-350 (1252 °C) r*t\\2
Dielectric constant (1MHz, 20°C) 4.6 1ti4 ZM
Dielectric loss (1MHz, 20°C) 37 x 10-4 1#<KZN =$
Dielectric strength (50MHz, 25°C) Kv/mm 16 Z,jK(7D(
Color Code (λ5/λ80) 297.6/337.2 L
H`z '7&/
Volume Sensitivity (log ρ) Xi!`+N4
250°C '+cPx\4
350°C :F`yAB3
8.0 =Wj{J.7mf]
6.5 jVtRn.qh
Environmental Protection Pb < 50 ppm B> LL
*
As < 5 ppm }\Mmp+<
Cd < 5 ppm v}AVIdR