Refractive index (nd) 1.47200 QZ:]8MHl]
Dispersion (nF- nC) 0.00719 a #OhWqu$
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 A>&>6O4
Thermal conductivity (W/(m * °C)) 1.14 m!FM+kge
Average thermal capacity (KJ/ (kg * °C)) 0.83 0+VncL)u
Maximal operation temperature (°C) 7cOg(6N
Short Term Z
L6~Eut
Long Term pqGf@24c<
Thermal stability ;%b <uV
500 ]$XBd{\D{
450 B5?c'[V9
375 ?%8})^Dd>4
Density (g/cm3) 2.23 ?,+C!R?
Elastic modulus E (kN/mm3) 64 &VZmP5Gv
Hardness (HK) 480 g 'd*TBnk
Poission's Ratio 0.2 :yFTaniJ'.
Climatic resistance (ISO - 719 - HGB) Grade 1 eEg1-
Acid resistance Grade 1 HNkZ 1+P {
Alkali resistance Grade 1 '<{oYXZW3
Melting temperature (°C) 1680 I;kUG_c(4
Working Point (°C) 1252 t aD T;t
Softening Point (°C) 820 ± 10 'JW_]z1
Annealing Point (°C) 560 ± 10 h~= \/vF
Stress Point (°C) 510 ± 10 2yCd :wg
Surface Tension (dyn/cm) 340-350 (1252 °C) 5Xy^I^J
Dielectric constant (1MHz, 20°C) 4.6 #qiGOpTF.
Dielectric loss (1MHz, 20°C) 37 x 10-4 6 qHvq
A,
Dielectric strength (50MHz, 25°C) Kv/mm 16 H( DVVHx
Color Code (λ5/λ80) 297.6/337.2 709Uv5
Volume Sensitivity (log ρ) uP% ;QBb
250°C 21)-: rS
350°C 8g2-8pa{
8.0 j
44bF/
6.5 L(!!7B_,
Environmental Protection Pb < 50 ppm 7zJh; f/
As < 5 ppm xTksF?u)
Cd < 5 ppm @88z{
