Refractive index (nd) 1.47200 `hi=y BO
Dispersion (nF- nC) 0.00719 vxOqo)yO
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 6Dlm.~G
Thermal conductivity (W/(m * °C)) 1.14
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Average thermal capacity (KJ/ (kg * °C)) 0.83 lW&(dn)}
Maximal operation temperature (°C) IOcQI:4.`
Short Term d(T4Kd$r
Long Term %9J@##+
Thermal stability ;*<tU
n^t
500 T{k
P9
4
450 s[yWBew
375 F4EAC|Y
Density (g/cm3) 2.23 H5=kDkb
Elastic modulus E (kN/mm3) 64 jxh:z
Hardness (HK) 480
l_vGp
Poission's Ratio 0.2 7A)\:k
Climatic resistance (ISO - 719 - HGB) Grade 1 ,c p2Fac
Acid resistance Grade 1 nT6y6F_e
Alkali resistance Grade 1 EKwQ$?I
Melting temperature (°C) 1680 jFj11w1FrA
Working Point (°C) 1252
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Softening Point (°C) 820 ± 10 K,E/.Qe\C
Annealing Point (°C) 560 ± 10 .+9hm|
Stress Point (°C) 510 ± 10 Dqx#i-L23
Surface Tension (dyn/cm) 340-350 (1252 °C) ,=:K&5mCv
Dielectric constant (1MHz, 20°C) 4.6 za>UE,?h
Dielectric loss (1MHz, 20°C) 37 x 10-4 Z*%;;&?
Dielectric strength (50MHz, 25°C) Kv/mm 16 kQ`tY`3F
Color Code (λ5/λ80) 297.6/337.2 'cW^ S7
Volume Sensitivity (log ρ) =}^NyLE?
250°C >XD?zF)6
350°C PsY![CPrW
8.0 #~*v##^vFH
6.5 RgJ@J/p"
Environmental Protection Pb < 50 ppm $)i`!7`4=
As < 5 ppm )g0lI
Cd < 5 ppm f%Q{}fC{*