Refractive index (nd) 1.47200 D9;pjY
Dispersion (nF- nC) 0.00719 U<F|A!Fg
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 [QMN0#(h
Thermal conductivity (W/(m * °C)) 1.14 zqt%x?l
Average thermal capacity (KJ/ (kg * °C)) 0.83 Nk7=[y#z
Maximal operation temperature (°C) mVS^HQ:
Short Term I%:?f{\
Long Term zC:Pg4=w]
Thermal stability |_g7k2oLY
500 sk07|9nU
450 &=S:I!9;;
375 OpazWcMoo
Density (g/cm3) 2.23 ab9ec Z
Elastic modulus E (kN/mm3) 64 `z q+Xl
Hardness (HK) 480 _R]0S
Poission's Ratio 0.2 GzaGTd.b
Climatic resistance (ISO - 719 - HGB) Grade 1 ^uG^>Om*
Acid resistance Grade 1 ) x+edYw
Alkali resistance Grade 1 w*~s&7c2B
Melting temperature (°C) 1680 %${$P+a`D
Working Point (°C) 1252 _pb*kJ
Softening Point (°C) 820 ± 10 9D`K#3}
Annealing Point (°C) 560 ± 10 vP#*if[V5
Stress Point (°C) 510 ± 10 Nw9:Gi
Surface Tension (dyn/cm) 340-350 (1252 °C) Yh^8
!
Dielectric constant (1MHz, 20°C) 4.6 /~".GZ&29
Dielectric loss (1MHz, 20°C) 37 x 10-4 :81d~f7
Dielectric strength (50MHz, 25°C) Kv/mm 16 $8(QBZq
Color Code (λ5/λ80) 297.6/337.2 yFeFI@Hp 3
Volume Sensitivity (log ρ) T(Yp90'6
250°C 0#=xUk#LP`
350°C 7@g0>1Fz
8.0 }:0ru_F)(4
6.5 ~uq010lMno
Environmental Protection Pb < 50 ppm D/"velV
As < 5 ppm | @ ut/
Cd < 5 ppm rZ n@i