Refractive index (nd) 1.47200 ze9n }oN
Dispersion (nF- nC) 0.00719 6yUThv.G #
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 W,,3@ :
Thermal conductivity (W/(m * °C)) 1.14 2h<_?GM\s
Average thermal capacity (KJ/ (kg * °C)) 0.83 qp*~ |
Maximal operation temperature (°C) n>B
,O
Short Term .K-d
Long Term HD{u#~8{
Thermal stability OXZK|C;M}
500 x]hG2on!
450 jR:\D_:
375 <2 kv /
Density (g/cm3) 2.23 ^vV AuO
Elastic modulus E (kN/mm3) 64 /EQ ^-4yr
Hardness (HK) 480 zV15d91GX
Poission's Ratio 0.2 OcpvY~"Pr
Climatic resistance (ISO - 719 - HGB) Grade 1 &xUCXj2-z
Acid resistance Grade 1 w AdaP9h
Alkali resistance Grade 1 je#LD
Melting temperature (°C) 1680 Hr]
Working Point (°C) 1252 ]X7_ji(l,
Softening Point (°C) 820 ± 10 QT F1~A\
Annealing Point (°C) 560 ± 10 ~ [/jk !G
Stress Point (°C) 510 ± 10 *'-C/
Surface Tension (dyn/cm) 340-350 (1252 °C) Z
s| *+[
Dielectric constant (1MHz, 20°C) 4.6 ]fh(b)8_,
Dielectric loss (1MHz, 20°C) 37 x 10-4 2YQBw,gG
Dielectric strength (50MHz, 25°C) Kv/mm 16 +7lr#AvU/
Color Code (λ5/λ80) 297.6/337.2 <o|k'Y(-
Volume Sensitivity (log ρ) ) BaGY
250°C 1)~9Eku6K
350°C .MDSP/s
8.0 c;t3I},
6.5 3 AP=
Environmental Protection Pb < 50 ppm D > U(&n
As < 5 ppm *\iXU//^)
Cd < 5 ppm 41.xi 9V2
