Refractive index (nd) 1.47200 I\6u(; @
Dispersion (nF- nC) 0.00719 =Of!1TR(
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 M. Fu>Xi
Thermal conductivity (W/(m * °C)) 1.14 QPi]5z?
Average thermal capacity (KJ/ (kg * °C)) 0.83 );^]
is~
Maximal operation temperature (°C) dn by &-+T
Short Term {5f? y\Z
Long Term tNskB`541
Thermal stability ldJ:A*/M6
500 B}.G(-u?7
450 r$~w3yN)v
375 ~ituPrH%<
Density (g/cm3) 2.23 n')#]g0[
Elastic modulus E (kN/mm3) 64 y7 I')}SC
Hardness (HK) 480 M' =27!D^
Poission's Ratio 0.2 2EubMG
Climatic resistance (ISO - 719 - HGB) Grade 1 4s<*rKm~
Acid resistance Grade 1 vG'JMzAm
Alkali resistance Grade 1 ndk V(#wQS
Melting temperature (°C) 1680 [TP r
Working Point (°C) 1252 Z#wmEc.}C
Softening Point (°C) 820 ± 10 mCtuR*z_
Annealing Point (°C) 560 ± 10 Bf Lh%XC
Stress Point (°C) 510 ± 10 =o5ZcC
Surface Tension (dyn/cm) 340-350 (1252 °C) .)W'{2J-
Dielectric constant (1MHz, 20°C) 4.6 lE+v@Kb:
Dielectric loss (1MHz, 20°C) 37 x 10-4 H)$-T1Wx 4
Dielectric strength (50MHz, 25°C) Kv/mm 16 Xj;nh?\u
Color Code (λ5/λ80) 297.6/337.2 3 *G 7H
Volume Sensitivity (log ρ) ':71;^zXf
250°C d jeax
350°C &~+lXNXF
8.0 Vwp fkD`
6.5 DRLX0Ml]\
Environmental Protection Pb < 50 ppm 2\ /(!n
As < 5 ppm zof>S>5>R7
Cd < 5 ppm 6] dK,
