Refractive index (nd) 1.47200 ZfN%JJOz(
Dispersion (nF- nC) 0.00719 @C6.~OiP
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 i9k/X&V
Thermal conductivity (W/(m * °C)) 1.14 38eeRo
Average thermal capacity (KJ/ (kg * °C)) 0.83 /CN`U7:E
Maximal operation temperature (°C) D.R 7#^.
Short Term V$fvf#T
Long Term 8_F 5c@7
Thermal stability 3.s.&^
500 y2,M9
450 :*/`"M)'
375 V3$Yr"rZ;
Density (g/cm3) 2.23 Q{+&3KXH
Elastic modulus E (kN/mm3) 64 -:o4|&g<*
Hardness (HK) 480 o Kfm=TbY
Poission's Ratio 0.2 `V[{,!l;X
Climatic resistance (ISO - 719 - HGB) Grade 1 m`Ver:{
Acid resistance Grade 1 cfd7)(6
Alkali resistance Grade 1 $,~D-~-
Melting temperature (°C) 1680 W{(q7>g
Working Point (°C) 1252 nB1[OB{
Softening Point (°C) 820 ± 10 Sq,x57-
Annealing Point (°C) 560 ± 10 Q4,!N(>D
Stress Point (°C) 510 ± 10 %0!!998
Surface Tension (dyn/cm) 340-350 (1252 °C) "?UBW5nM#
Dielectric constant (1MHz, 20°C) 4.6 oMV<Yn_<
Dielectric loss (1MHz, 20°C) 37 x 10-4 &%Lps_+fJ
Dielectric strength (50MHz, 25°C) Kv/mm 16 '{?7\+o.x
Color Code (λ5/λ80) 297.6/337.2 3B5GsI
Volume Sensitivity (log ρ) P[E5e+A)
250°C >3a<#s{%
350°C ?@i_\<A2
8.0 Y[ciT)
6.5 |8m;}&r$
Environmental Protection Pb < 50 ppm 2\p8U#""
As < 5 ppm 0qj:v"~Q
Cd < 5 ppm T!*lTzNHm