Refractive index (nd) 1.47200 !-veL1r
Dispersion (nF- nC) 0.00719 v:F_!Q
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 W5*Kq^6Pd
Thermal conductivity (W/(m * °C)) 1.14 WqO4_;X6/
Average thermal capacity (KJ/ (kg * °C)) 0.83 Xi~7pH
Maximal operation temperature (°C) Wa5B;X~
Short Term 88 &M8T'AP
Long Term 9 _oAs"w
Thermal stability $xU)t&Df
500 Y&uwi:_g
450 |NdWx1
375 ~dBx<
Density (g/cm3) 2.23 eF"k"Ckt'
Elastic modulus E (kN/mm3) 64 | LXVf
Hardness (HK) 480 ('~}$%C
Poission's Ratio 0.2 1j*E/L
Climatic resistance (ISO - 719 - HGB) Grade 1 n\i~H
Acid resistance Grade 1 BROn2aSx%
Alkali resistance Grade 1 eH_< <Xh!v
Melting temperature (°C) 1680 }`pxs
Working Point (°C) 1252 ;?G..,
Softening Point (°C) 820 ± 10 I}sb0 Q&
Annealing Point (°C) 560 ± 10 GYt|[GC
Stress Point (°C) 510 ± 10 Kh8
Surface Tension (dyn/cm) 340-350 (1252 °C) m9=93W?
Dielectric constant (1MHz, 20°C) 4.6 8B`w!@hf
Dielectric loss (1MHz, 20°C) 37 x 10-4 7>V*gV?v
Dielectric strength (50MHz, 25°C) Kv/mm 16 . 3'U(U
Color Code (λ5/λ80) 297.6/337.2 hHk9O?
Volume Sensitivity (log ρ) G,}"}v:
250°C TCR|wi]
kW
350°C z*)kK
8.0 x~JOg57up
6.5 Js<DVe,
Environmental Protection Pb < 50 ppm K=Z.<f
As < 5 ppm iv
~<me0F
Cd < 5 ppm "-Yj~