Refractive index (nd) 1.47200 3Mh_ &%!O
Dispersion (nF- nC) 0.00719 [e=k<gKH
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 ;|rF P
Thermal conductivity (W/(m * °C)) 1.14 Uwiy@ T Z
Average thermal capacity (KJ/ (kg * °C)) 0.83 %Y`)ZKh
Maximal operation temperature (°C) ,vi6<C\
Short Term :@~3wD[y
Long Term Pw| /PfG
Thermal stability '&/Y}]
500 ~O;?;@
450 !H^R_ GC
375 yaj1nq! *"
Density (g/cm3) 2.23 C/"Wh=h6
Elastic modulus E (kN/mm3) 64 ku v<
Hardness (HK) 480 H_JT"~_2
Poission's Ratio 0.2 j~2t^Qz
Climatic resistance (ISO - 719 - HGB) Grade 1 a;7gy419<p
Acid resistance Grade 1 =Oh/4TbW[
Alkali resistance Grade 1 ^sZHy4-yK#
Melting temperature (°C) 1680 .@(MNq{"6
Working Point (°C) 1252 IOUzj{G#
Softening Point (°C) 820 ± 10 >48)@sS
Annealing Point (°C) 560 ± 10 p'SY 2xq-,
Stress Point (°C) 510 ± 10 $>~4RXC
Surface Tension (dyn/cm) 340-350 (1252 °C) RV5;EM)~[
Dielectric constant (1MHz, 20°C) 4.6 @(st![i+
Dielectric loss (1MHz, 20°C) 37 x 10-4 =>C3IR/
Dielectric strength (50MHz, 25°C) Kv/mm 16 d cht8nX7~
Color Code (λ5/λ80) 297.6/337.2 ilj9&.isB
Volume Sensitivity (log ρ) 0w^awT<$6
250°C ">I50#bT
350°C D2Kh+~l
8.0 ]s_BOt
6.5 5#? HL
Environmental Protection Pb < 50 ppm )vur$RX
As < 5 ppm nG5:H.)
Cd < 5 ppm LTY(6we-
