Refractive index (nd) 1.47200 D A0{s
Dispersion (nF- nC) 0.00719 K5oVB,z)
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 +N~?_5lv\s
Thermal conductivity (W/(m * °C)) 1.14 WJB/X"J
Average thermal capacity (KJ/ (kg * °C)) 0.83 Ru1I,QvCj"
Maximal operation temperature (°C) W0++q=F
Short Term 6f$h1$$)^
Long Term n$z}DE5 #
Thermal stability g91X*$`]
500 ~-1!?t/%
450 2f;fdzjk8K
375 q QL]3qP
Density (g/cm3) 2.23 d8Keyi8[
Elastic modulus E (kN/mm3) 64 5LPyPL L
Hardness (HK) 480 {95z\UE}
Poission's Ratio 0.2 z /
YF7wrx
Climatic resistance (ISO - 719 - HGB) Grade 1 Q@7-UIV|q
Acid resistance Grade 1 `2 vv8cg^
Alkali resistance Grade 1 K
>-)O=$s
Melting temperature (°C) 1680 L} >XH*
Working Point (°C) 1252 \P3[_kbf1
Softening Point (°C) 820 ± 10 Wq4>!|
Annealing Point (°C) 560 ± 10 p=tj>{
Stress Point (°C) 510 ± 10 x{$~u2|
Surface Tension (dyn/cm) 340-350 (1252 °C) W ?*]' 0
Dielectric constant (1MHz, 20°C) 4.6 p4ML } q 8
Dielectric loss (1MHz, 20°C) 37 x 10-4 >o#5tNm
Dielectric strength (50MHz, 25°C) Kv/mm 16
i Mr Np
Color Code (λ5/λ80) 297.6/337.2 c]qq *k#
Volume Sensitivity (log ρ) R V*7? y%3
250°C K#O8P+n5[
350°C @0XqUcV
8.0 xz @/^Cj
6.5 h{dR)#)GF<
Environmental Protection Pb < 50 ppm DO r()X
As < 5 ppm G=[ =[o\
Cd < 5 ppm "R"7'sJ MI
