Refractive index (nd) 1.47200 DS2$ w9!
Dispersion (nF- nC) 0.00719 @#tSx
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 W8NA.
Thermal conductivity (W/(m * °C)) 1.14 (B-9M)
Average thermal capacity (KJ/ (kg * °C)) 0.83 R4(8]oUW
Maximal operation temperature (°C) 9p4U\hx
Short Term sD3|Qj;
Long Term %p60pn[(
Thermal stability ~`E4E
500 o?FUVK
450 wcf_5T
375 EvmmQ
Density (g/cm3) 2.23 TMCA?r%Y\
Elastic modulus E (kN/mm3) 64 uCfp+
Hardness (HK) 480 }AqD0Qd2Hj
Poission's Ratio 0.2 <pUou
Climatic resistance (ISO - 719 - HGB) Grade 1 )x &@j4,
Acid resistance Grade 1 Rk[ * p
Alkali resistance Grade 1 3raA^d3!?
Melting temperature (°C) 1680 [9_ (+E[}
Working Point (°C) 1252 8|NJ(D-$
Softening Point (°C) 820 ± 10
]:fCyIE
Annealing Point (°C) 560 ± 10 -(}1o9e\7
Stress Point (°C) 510 ± 10 G9inNz*Cx
Surface Tension (dyn/cm) 340-350 (1252 °C) ji
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Dielectric constant (1MHz, 20°C) 4.6 ]!aa#?Fc
Dielectric loss (1MHz, 20°C) 37 x 10-4 34kd|!e,
Dielectric strength (50MHz, 25°C) Kv/mm 16 ]/Qy1,
Color Code (λ5/λ80) 297.6/337.2 xN8JrZE&
Volume Sensitivity (log ρ) |uBC0f
250°C Z<<gz[$+p
350°C m@u`$rOh
8.0 E}9ldM=]s
6.5 -z$2pXT ^
Environmental Protection Pb < 50 ppm S)@vl^3ec
As < 5 ppm >1G*ya)
Cd < 5 ppm jY+S,lD