Refractive index (nd) 1.47200 [}jj<!9A_;
Dispersion (nF- nC) 0.00719 XTIu(f|d_;
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 ;`;G/1]#9
Thermal conductivity (W/(m * °C)) 1.14 'MSEki67
Average thermal capacity (KJ/ (kg * °C)) 0.83 @*bvMEE
Maximal operation temperature (°C) ?,D>+::
Short Term .jLMl*6%:
Long Term 0>I]=M]@
Thermal stability xYT#!K1*
500 Bm65 W
450 782[yLyv
375 kQqBHA
Density (g/cm3) 2.23 "sz.v<F0:s
Elastic modulus E (kN/mm3) 64 J(3gT }z-
Hardness (HK) 480 NvEm,E\|
Poission's Ratio 0.2 Jsl k
Climatic resistance (ISO - 719 - HGB) Grade 1 / c4;3>I S
Acid resistance Grade 1 N8Rm})
Alkali resistance Grade 1 =}B4I
Melting temperature (°C) 1680 Ufm(2` FQ
Working Point (°C) 1252 7KvXTrN!9
Softening Point (°C) 820 ± 10 # Nu%]
Annealing Point (°C) 560 ± 10 <K=@-4/Bp
Stress Point (°C) 510 ± 10 e {^:/WcYB
Surface Tension (dyn/cm) 340-350 (1252 °C) [] GthF
Dielectric constant (1MHz, 20°C) 4.6 z Y$X|= f
Dielectric loss (1MHz, 20°C) 37 x 10-4 8o*\W $K@
Dielectric strength (50MHz, 25°C) Kv/mm 16 L?Kz
P.(t+
Color Code (λ5/λ80) 297.6/337.2 |@T5$Xg]5
Volume Sensitivity (log ρ) [0mFy) 6
250°C "R@$Wu53|
350°C {bAWc.
8.0 O;"*_Xq(`
6.5 5`1 (}
Environmental Protection Pb < 50 ppm x.0k %H
As < 5 ppm d,GtH)( s
Cd < 5 ppm zhVa.r A
