Refractive index (nd) 1.47200 R2|v[nh
Dispersion (nF- nC) 0.00719 |j3mI\ANF
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 z%Pbs [*C
Thermal conductivity (W/(m * °C)) 1.14 BG\g`NK}Z
Average thermal capacity (KJ/ (kg * °C)) 0.83 J5b>mTvb
Maximal operation temperature (°C) -!zyit5B
Short Term PQ9.aJdw@-
Long Term ;-Fr^|do y
Thermal stability x%I vd
500 %eW[`uyV
450 I
CCmE#n
375 >|1.Z' r/
Density (g/cm3) 2.23 wH& [Tg
Elastic modulus E (kN/mm3) 64 J\VG/)E
Hardness (HK) 480 U>PF#@ C/
Poission's Ratio 0.2 <!g q 9
Climatic resistance (ISO - 719 - HGB) Grade 1 k`[ L
Acid resistance Grade 1 k<x
%
Alkali resistance Grade 1
Q }.zE+
Melting temperature (°C) 1680 l?F-w;wHN
Working Point (°C) 1252 oNH&VHjU
Softening Point (°C) 820 ± 10 hYO UuC
Annealing Point (°C) 560 ± 10 s4h3mypw
Stress Point (°C) 510 ± 10 K89 AZxH
Surface Tension (dyn/cm) 340-350 (1252 °C) t
1gH9
Dielectric constant (1MHz, 20°C) 4.6 [+dOgyK
Dielectric loss (1MHz, 20°C) 37 x 10-4 `3GC}u>}
Dielectric strength (50MHz, 25°C) Kv/mm 16 o0t/
Color Code (λ5/λ80) 297.6/337.2 X -[_g!pV
Volume Sensitivity (log ρ) T"ors]eI
250°C S^ ij %
350°C `hJSo?G>
8.0 ^wDZg`
6.5 k=L(C^VP
Environmental Protection Pb < 50 ppm )Nv$ SH
As < 5 ppm iF:`rIC
Cd < 5 ppm "uK`! {
