Refractive index (nd) 1.47200 qq| 5[I.?
Dispersion (nF- nC) 0.00719 FQDf?d5
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 VI&x1C
Thermal conductivity (W/(m * °C)) 1.14 rG-T Dm
Average thermal capacity (KJ/ (kg * °C)) 0.83 N>!:bF
Maximal operation temperature (°C) _qxI9Q}<"
Short Term 20;9XJmjl
Long Term cQU;PH]
Thermal stability W&?Qs=@
500 "La;$7ds
450 CJ
:V %|
375 o8bd L<
Density (g/cm3) 2.23 dI{DiPho
Elastic modulus E (kN/mm3) 64 uZ!YGv0^
Hardness (HK) 480 h+FM?ct6}
Poission's Ratio 0.2 f2i:I1 p("
Climatic resistance (ISO - 719 - HGB) Grade 1 M3pE$KT0x
Acid resistance Grade 1 o}OY,P
Alkali resistance Grade 1 0ns\:2)cEB
Melting temperature (°C) 1680 kJWg},-\
Working Point (°C) 1252 >NRppPqL
Softening Point (°C) 820 ± 10 iVXt@[
Annealing Point (°C) 560 ± 10 2?JV "O=
Stress Point (°C) 510 ± 10 r7m~.M+W"
Surface Tension (dyn/cm) 340-350 (1252 °C) fK J-/{|
Dielectric constant (1MHz, 20°C) 4.6 8D='N`cN+
Dielectric loss (1MHz, 20°C) 37 x 10-4 .-KI,IU
Dielectric strength (50MHz, 25°C) Kv/mm 16 )/T[Cnx.Nc
Color Code (λ5/λ80) 297.6/337.2 :
uncOd.
Volume Sensitivity (log ρ) k{}> *pCU
250°C oJ74Mra
350°C qb>41j9_t
8.0 jx: IK
6.5 j[G`p^ul
Environmental Protection Pb < 50 ppm fZG Y'o&5
As < 5 ppm WAa45G
Cd < 5 ppm va6Fp2n<1*