Refractive index (nd) 1.47200
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Dispersion (nF- nC) 0.00719 .F]6uXd
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 0Ec -/
Thermal conductivity (W/(m * °C)) 1.14 ;RrfE8mGj
Average thermal capacity (KJ/ (kg * °C)) 0.83 5H79) n>
Maximal operation temperature (°C) Zqao4
Short Term E,;nx^`!l
Long Term *6h.#$\
Thermal stability %l,Xt"nS#
500 \ l:n
450 BdceINI
375 4]cOTXk9C
Density (g/cm3) 2.23 lfhB2^^
Elastic modulus E (kN/mm3) 64 cc>h=%s`
Hardness (HK) 480 k";;Snk
Poission's Ratio 0.2 5rc<ibGh
Climatic resistance (ISO - 719 - HGB) Grade 1 oxRu:+N
Acid resistance Grade 1 h1BdASn_
Alkali resistance Grade 1 }>j$Wr_h
Melting temperature (°C) 1680 BKIt,7j
Working Point (°C) 1252 UkdQ#b1
Softening Point (°C) 820 ± 10 5=dg4"b]
Annealing Point (°C) 560 ± 10 qP"m819m
Stress Point (°C) 510 ± 10 r4-r
z+x
Surface Tension (dyn/cm) 340-350 (1252 °C) a+X X?uN{
Dielectric constant (1MHz, 20°C) 4.6 +"C0de |-
Dielectric loss (1MHz, 20°C) 37 x 10-4 E$G8-
Dielectric strength (50MHz, 25°C) Kv/mm 16 KT8Fn+
Color Code (λ5/λ80) 297.6/337.2 Jlzhn#5c-
Volume Sensitivity (log ρ) <"t >!I
250°C 8mV35A7l
350°C V7&