Refractive index (nd) 1.47200 31LXzQvFG
Dispersion (nF- nC) 0.00719 (xJ6 : u
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 pq6}q($Rk
Thermal conductivity (W/(m * °C)) 1.14 &inu mc
Average thermal capacity (KJ/ (kg * °C)) 0.83 1O1/P,u+
Maximal operation temperature (°C) ,
e{kC
Short Term ?5nF` [r x
Long Term ;CD.8f]N
Thermal stability K v C`6
500 udDhJ?
450 15_ OtK
375 mvI[ =e*
Density (g/cm3) 2.23 'H2TwSbIXI
Elastic modulus E (kN/mm3) 64 ^ c}Z$V
Hardness (HK) 480 RF
4u\ \
Poission's Ratio 0.2 ^W P`;e
Climatic resistance (ISO - 719 - HGB) Grade 1 F_=RY ]
Acid resistance Grade 1 o~,dkV
Alkali resistance Grade 1 RV5 X 0
Melting temperature (°C) 1680 eOjoxnD-$
Working Point (°C) 1252 T9\wkb.
Softening Point (°C) 820 ± 10 8*3<Erv
Annealing Point (°C) 560 ± 10 OWFLw
Stress Point (°C) 510 ± 10 ~k?7XF I
Surface Tension (dyn/cm) 340-350 (1252 °C) [!4p5;
Dielectric constant (1MHz, 20°C) 4.6 v2:A 4Pd:+
Dielectric loss (1MHz, 20°C) 37 x 10-4 y~An'+yBa
Dielectric strength (50MHz, 25°C) Kv/mm 16 j^T .7Zv
Color Code (λ5/λ80) 297.6/337.2 y]aV7
`]
Volume Sensitivity (log ρ) S,Boutd
250°C 7jT]J
350°C N;7Xt9l
8.0 zlZ $t{[,
6.5 Rz1&(_Ps
Environmental Protection Pb < 50 ppm wQ qI@
As < 5 ppm W[[3'J TF
Cd < 5 ppm sPn[FuT>+s
