Refractive index (nd) 1.47200 Ch_eK^ g1
Dispersion (nF- nC) 0.00719 e2kW,JV/<$
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 et=i@PB)
Thermal conductivity (W/(m * °C)) 1.14 yof8L WXx
Average thermal capacity (KJ/ (kg * °C)) 0.83 "R]wPF5u
Maximal operation temperature (°C) XD Q<28^
Short Term *tfD^nctO
Long Term 7Y5.GW\^
Thermal stability %Ix2NdC
500 |t~*!0>3
450 06e dVIRr
375 RZ|M;c
Density (g/cm3) 2.23 y@r g_Paq
Elastic modulus E (kN/mm3) 64 [lGxys)J
Hardness (HK) 480 Xi;<O&+
Poission's Ratio 0.2 Vwb_$Yi+]
Climatic resistance (ISO - 719 - HGB) Grade 1 c7D{^$L9v
Acid resistance Grade 1 kK:U+`+
Alkali resistance Grade 1 JCci*F#r
Melting temperature (°C) 1680 G5ShheZd
Working Point (°C) 1252 EHK+qrym
Softening Point (°C) 820 ± 10 4 %V9
Annealing Point (°C) 560 ± 10 g(i8HU*{q
Stress Point (°C) 510 ± 10 >[l2KD
Surface Tension (dyn/cm) 340-350 (1252 °C) (4|R}jv
Dielectric constant (1MHz, 20°C) 4.6 Ygc|9}
Dielectric loss (1MHz, 20°C) 37 x 10-4 $\q.Zb
Dielectric strength (50MHz, 25°C) Kv/mm 16 mpQu:i|W
Color Code (λ5/λ80) 297.6/337.2 _9'hmej
Volume Sensitivity (log ρ) ^!z(IE'
250°C v#?;PyeF
350°C @w;$M]o1
8.0 FKUo^F?z
6.5 +J#8wh
Environmental Protection Pb < 50 ppm ^6J*:(eM
As < 5 ppm ozKS<<
Cd < 5 ppm >+DMTV[O