Refractive index (nd) 1.47200 c`t1:%S
Dispersion (nF- nC) 0.00719 Y&j6; 2-Z
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 ;bA9 (:?
Thermal conductivity (W/(m * °C)) 1.14 $h$+EE!
Average thermal capacity (KJ/ (kg * °C)) 0.83 \XpPb{:>
Maximal operation temperature (°C) z.jGVF4
Short Term F*NI s:3;
Long Term r7IhmdA
Thermal stability FF/MTd}6qG
500 Np=*B_ @8
450 ", |wG7N
K
375 C&;'Pw9H
Density (g/cm3) 2.23 -bj1y2)n
Elastic modulus E (kN/mm3) 64 @*_K#3
Hardness (HK) 480 JEP"2M N,
Poission's Ratio 0.2 [t6)M~&e:_
Climatic resistance (ISO - 719 - HGB) Grade 1 !~mN"+u&
Acid resistance Grade 1 Lc.7: r
Alkali resistance Grade 1 Cn_Mz#Z
Melting temperature (°C) 1680 w6cPd'
Working Point (°C) 1252 ~\oJrRYR`
Softening Point (°C) 820 ± 10 L?Lp``%bI7
Annealing Point (°C) 560 ± 10 s@ q54
Stress Point (°C) 510 ± 10 cdh1~'q/
Surface Tension (dyn/cm) 340-350 (1252 °C) i\<l&W
Dielectric constant (1MHz, 20°C) 4.6 F _-yT[i
Dielectric loss (1MHz, 20°C) 37 x 10-4 :7`,dyIqT
Dielectric strength (50MHz, 25°C) Kv/mm 16 G's/Q-'[\
Color Code (λ5/λ80) 297.6/337.2 BHK_=2WYz
Volume Sensitivity (log ρ) d+IPa<N
250°C v |i(peA #
350°C iD]!PaFD`
8.0 }U(^ Q B
6.5 <<`."RY#0
Environmental Protection Pb < 50 ppm '<Vvv^Er
As < 5 ppm #A))#sT'R
Cd < 5 ppm wWm#[f],?
