Refractive index (nd) 1.47200 U$-Gc[=|
Dispersion (nF- nC) 0.00719 JVy- Y
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 5 YjqN
Thermal conductivity (W/(m * °C)) 1.14 'M8wjU
Average thermal capacity (KJ/ (kg * °C)) 0.83 2_k2t
?
Maximal operation temperature (°C) =BW;n]ls
Short Term F6^Xi"R[
Long Term n] {sBI3
Thermal stability |>X5@
500 $2I^ ;5r[
450 j
N":9+F
375 hA 1_zKZ
Density (g/cm3) 2.23 82d~>i%T
Elastic modulus E (kN/mm3) 64 b/"&E'5-`\
Hardness (HK) 480 *L7&P46
Poission's Ratio 0.2 jRdmQmTJ
Climatic resistance (ISO - 719 - HGB) Grade 1 P`^3-X/
Acid resistance Grade 1 ^k{b8-)W<
Alkali resistance Grade 1 #2
Gy=GvV
Melting temperature (°C) 1680 t,H=;U#
Working Point (°C) 1252 K{DsGf,
Softening Point (°C) 820 ± 10 2E7vuFH4c
Annealing Point (°C) 560 ± 10 d7(g=JK<
Stress Point (°C) 510 ± 10 ?D[9-K4Vn
Surface Tension (dyn/cm) 340-350 (1252 °C) xb8S)zO]Q
Dielectric constant (1MHz, 20°C) 4.6 '$nm~z,V
Dielectric loss (1MHz, 20°C) 37 x 10-4 EH1GdlhA
Dielectric strength (50MHz, 25°C) Kv/mm 16 PiQsVk
Color Code (λ5/λ80) 297.6/337.2 \;#T.@c5
Volume Sensitivity (log ρ) !C]2:+z-MF
250°C
&=ZVU\o:
350°C e"g=A=S
8.0 P qUjBP\
6.5 %BBM%Lj
Environmental Protection Pb < 50 ppm 0o-.m
As < 5 ppm #POVu|Y;h
Cd < 5 ppm L?h'^*F H}