Refractive index (nd) 1.47200 LN^f1/b*
Dispersion (nF- nC) 0.00719 Pqp *
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 ?6N3tk-2
Thermal conductivity (W/(m * °C)) 1.14 rT6?!$"%.
Average thermal capacity (KJ/ (kg * °C)) 0.83 0D ~
Tga)
Maximal operation temperature (°C) J"CJYuGW,
Short Term WFv!Pbq,
Long Term I.jZ
wW!r
Thermal stability FxW&8 9G
500 *3+-W
450 ZxHJ<2oD
375 oy\B;aAK
Density (g/cm3) 2.23 H[WQ=){
Elastic modulus E (kN/mm3) 64 $dg9z}D
Hardness (HK) 480 R.RSQk7;
Poission's Ratio 0.2 EbK0j?
Climatic resistance (ISO - 719 - HGB) Grade 1 6NLW(?]
Acid resistance Grade 1 {=Q7m`1
Alkali resistance Grade 1 :E_a0!'
Melting temperature (°C) 1680 vF={9G
Working Point (°C) 1252 Z S|WnMH
Softening Point (°C) 820 ± 10 ZFn(x*L
Annealing Point (°C) 560 ± 10 /b[2lTC-e
Stress Point (°C) 510 ± 10 + ,4"
u
Surface Tension (dyn/cm) 340-350 (1252 °C) ~(X(&
Dielectric constant (1MHz, 20°C) 4.6 mOBACTY^
Dielectric loss (1MHz, 20°C) 37 x 10-4 m,MSMw1p
Dielectric strength (50MHz, 25°C) Kv/mm 16 xBM>u,0.F
Color Code (λ5/λ80) 297.6/337.2 zF&=U`v
Volume Sensitivity (log ρ) OI/@3"L{
250°C &xd.Qi2
350°C rpV1y$n<F
8.0 5LW}h^N
6.5 S\x=&R z
Environmental Protection Pb < 50 ppm _M5%V>HO
As < 5 ppm L36Yx7gT<
Cd < 5 ppm .qD@
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