Refractive index (nd) 1.47200 /L#?zSt
Dispersion (nF- nC) 0.00719 L8n|m!MOD
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 "h ^Z
Thermal conductivity (W/(m * °C)) 1.14 _aMF?Pj~m
Average thermal capacity (KJ/ (kg * °C)) 0.83 Qci]i)s$js
Maximal operation temperature (°C) b>$S<td
Short Term ?hM64jI|
Long Term h.fq,em+H
Thermal stability J.
@9zA&
500 RGX=)
450 }&3~|kP~O
375 |D.ND%K&
Density (g/cm3) 2.23 Xm2'6f,
Elastic modulus E (kN/mm3) 64 u2[w#
Hardness (HK) 480 U%<Inb}ad
Poission's Ratio 0.2 |)G<,FJQE_
Climatic resistance (ISO - 719 - HGB) Grade 1 ]cruF#`%
Acid resistance Grade 1 .[ mRM
Alkali resistance Grade 1 V1JIht>Opo
Melting temperature (°C) 1680 ]s748+
Working Point (°C) 1252 4Xv*wB1
Softening Point (°C) 820 ± 10 8.~kK<)!
Annealing Point (°C) 560 ± 10 0|b>I!_"g
Stress Point (°C) 510 ± 10 Q5_o/wk
Surface Tension (dyn/cm) 340-350 (1252 °C) nxHkv`s k
Dielectric constant (1MHz, 20°C) 4.6 Tb-F]lg$
Dielectric loss (1MHz, 20°C) 37 x 10-4 {zFMmPid
Dielectric strength (50MHz, 25°C) Kv/mm 16 bYPK h
Color Code (λ5/λ80) 297.6/337.2 YAmb`CP
Volume Sensitivity (log ρ) m#F`] {
250°C 3D(0=$W
350°C {}Za_(Y,]
8.0 8KNZ](Dj
6.5 4H<lm*!^
Environmental Protection Pb < 50 ppm cFWc<55aX6
As < 5 ppm rXU\
Cd < 5 ppm K_-MYs.