Refractive index (nd) 1.47200 0?|<I{z2
Dispersion (nF- nC) 0.00719 Z6MO^_m2
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 Dk5 1z@
Thermal conductivity (W/(m * °C)) 1.14 ((%?`y
Average thermal capacity (KJ/ (kg * °C)) 0.83 Q^^niVz
Maximal operation temperature (°C) YKK*ER0
Short Term ~WF\
Long Term W=+ Y|R!
Thermal stability b4Ekqas
500 BDQsP$'6QT
450 4 s9LB
375 nQ3A~ ()
Density (g/cm3) 2.23 n|yO9:Uw<
Elastic modulus E (kN/mm3) 64 ]7c=PC
Hardness (HK) 480 aw&,S"A@
Poission's Ratio 0.2 $M:*T.3
Climatic resistance (ISO - 719 - HGB) Grade 1 A?OQE9'
Acid resistance Grade 1 +R:(_:7
Alkali resistance Grade 1 {R{=+2K!|k
Melting temperature (°C) 1680 a(ZcmYzXU
Working Point (°C) 1252 P@~yx#G
Softening Point (°C) 820 ± 10 0jWVp-y
Annealing Point (°C) 560 ± 10 <
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Stress Point (°C) 510 ± 10 lr&a;aZp
Surface Tension (dyn/cm) 340-350 (1252 °C) lPAQ3t!,
Dielectric constant (1MHz, 20°C) 4.6 w_V P
J
Dielectric loss (1MHz, 20°C) 37 x 10-4 Z0r'S]fe
Dielectric strength (50MHz, 25°C) Kv/mm 16 buHJB*?9
Color Code (λ5/λ80) 297.6/337.2 86a\+Kz%%L
Volume Sensitivity (log ρ) ba9?(+i$h
250°C es0hm2HT3
350°C kD"{g#c
8.0 $<[79al#
6.5 }c:M^Ff
Environmental Protection Pb < 50 ppm .*Qx\,
As < 5 ppm 7_[L o4_
Cd < 5 ppm f*
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