Refractive index (nd) 1.47200 Qh3YJ=X&
Dispersion (nF- nC) 0.00719 rig,mv
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 t;Sb/ 3
Thermal conductivity (W/(m * °C)) 1.14 F?*-4I-
Average thermal capacity (KJ/ (kg * °C)) 0.83 8 &LQzwa
Maximal operation temperature (°C) Su7?;Oh/yI
Short Term bKY7/w<dP
Long Term X,_2FJv
Thermal stability .-c4wm}
500 x%m%_2%Z
450 H3^},.
375 a=9:[
Density (g/cm3) 2.23 ay
;S4c/_
Elastic modulus E (kN/mm3) 64 gMmaK0uhS
Hardness (HK) 480 ?
7n`A >T
Poission's Ratio 0.2 61>.vT8P
Climatic resistance (ISO - 719 - HGB) Grade 1 @Z
%ivR:
Acid resistance Grade 1 Xll}x+'uZK
Alkali resistance Grade 1 h$>-.-
Melting temperature (°C) 1680 $?Hu#Kn,(
Working Point (°C) 1252 T{.pM4Hd
Softening Point (°C) 820 ± 10 DDP/DD;n}r
Annealing Point (°C) 560 ± 10 TH&U
j1
Stress Point (°C) 510 ± 10 u(>^3PJ+
Surface Tension (dyn/cm) 340-350 (1252 °C) L-WT]&n_
Dielectric constant (1MHz, 20°C) 4.6 m@2QnA[4
Dielectric loss (1MHz, 20°C) 37 x 10-4 Smn;(K
Dielectric strength (50MHz, 25°C) Kv/mm 16 Uw. `7b>B
Color Code (λ5/λ80) 297.6/337.2 Nho>f
Volume Sensitivity (log ρ) >}8j+t&T
250°C rdP[<Y9
350°C {_[N<U:QT&
8.0 i Dp)FQ$
6.5 x7&B$.>3
Environmental Protection Pb < 50 ppm dO<ERY
As < 5 ppm HZC"nb}r4
Cd < 5 ppm {yHCXFWlS