Refractive index (nd) 1.47200 hjf!FY*F
Dispersion (nF- nC) 0.00719 FjR/_GPo6
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 =z^ 2KH
Thermal conductivity (W/(m * °C)) 1.14 -<H\VT%98
Average thermal capacity (KJ/ (kg * °C)) 0.83 ~tx|C3A`d
Maximal operation temperature (°C) ])OrSsV}
Short Term v=5H,4UMA
Long Term (K xI*
Thermal stability qW+'#Jh@TV
500 |?v(?
450 I]Ev6>=;
375 + OKk~GYf
Density (g/cm3) 2.23 #O 2g]YH
Elastic modulus E (kN/mm3) 64 yX 9 .yq
Hardness (HK) 480 I\e/
Bv^
Poission's Ratio 0.2 ^Gi9&fS,
Climatic resistance (ISO - 719 - HGB) Grade 1 q8A ;%.ZLG
Acid resistance Grade 1 *$e1Bv6
$
Alkali resistance Grade 1 Db4(E*/pj!
Melting temperature (°C) 1680 O| K-UTWH%
Working Point (°C) 1252 BOt1J_;(rO
Softening Point (°C) 820 ± 10 `A\,$(q+
Annealing Point (°C) 560 ± 10 ]2E#P.-!b
Stress Point (°C) 510 ± 10 %#t* 3[
Surface Tension (dyn/cm) 340-350 (1252 °C) ?vt#M^Q
Dielectric constant (1MHz, 20°C) 4.6 f/xQy}4+~E
Dielectric loss (1MHz, 20°C) 37 x 10-4 u00w'=pe)
Dielectric strength (50MHz, 25°C) Kv/mm 16 M>qqe! c*
Color Code (λ5/λ80) 297.6/337.2 mr mm@?
Volume Sensitivity (log ρ) VAW:h5j2@
250°C w#6)XR|+,.
350°C nA*U dr cn
8.0 H4B|c42
6.5 j]HzI{7y
Environmental Protection Pb < 50 ppm r=6N ZoZ
As < 5 ppm | $|B0mj
Cd < 5 ppm 3d>8~ANi=%
