Refractive index (nd) 1.47200 [L1pDICoy
Dispersion (nF- nC) 0.00719 %T*lcg
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 \4wM8j
Thermal conductivity (W/(m * °C)) 1.14 rt%.IQdY
Average thermal capacity (KJ/ (kg * °C)) 0.83 9<5SQ
Maximal operation temperature (°C) C~vU
Short Term c,KT1me
Long Term UYH;15s
Thermal stability cA"',N8!5
500 W|@EK E.k
450 aG?ko*A;
375 cgsM]2ZYs
Density (g/cm3) 2.23 ]Ff"o7gT
Elastic modulus E (kN/mm3) 64 "G P!]3t
Hardness (HK) 480 SsDz>PP
Poission's Ratio 0.2 CG IcuHp
Climatic resistance (ISO - 719 - HGB) Grade 1 QBa1c-Y
Acid resistance Grade 1 ~=HN30
Alkali resistance Grade 1 s+>""yi
Melting temperature (°C) 1680 ]#N2:ych
Working Point (°C) 1252 ^_JD
7-g
Softening Point (°C) 820 ± 10 ks7g*; 3{@
Annealing Point (°C) 560 ± 10 M#on-[
Stress Point (°C) 510 ± 10 < vU<:S
Surface Tension (dyn/cm) 340-350 (1252 °C) ^ Sx0t
Dielectric constant (1MHz, 20°C) 4.6 KzZ!
CB\
Dielectric loss (1MHz, 20°C) 37 x 10-4 6\)61o_1|
Dielectric strength (50MHz, 25°C) Kv/mm 16 %y33evX/B
Color Code (λ5/λ80) 297.6/337.2 .]%PnJM9K
Volume Sensitivity (log ρ) -UkP{x)S
250°C o=?sM q1<
350°C J_R54Y~vu
8.0 Eom|*2vWIC
6.5 Lm\N`
Environmental Protection Pb < 50 ppm jcQ{,9
H`l
As < 5 ppm z
%` \p
Cd < 5 ppm Nh~ Hh(