Refractive index (nd) 1.47200 eX 0due
Dispersion (nF- nC) 0.00719 T {![a{
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 > Ohh) $
Thermal conductivity (W/(m * °C)) 1.14 ==ZL0 ][
Average thermal capacity (KJ/ (kg * °C)) 0.83 xIb"8,N
Maximal operation temperature (°C) @ 5,Xr`]
Short Term 0!5 w0^1
Long Term VUQx"R9-
Thermal stability TGSkJ 1Lx
500 {Y6;/".DM
450 p_:bt7
B
375 Yp@i{$IUW
Density (g/cm3) 2.23 <fm<UO,%
Elastic modulus E (kN/mm3) 64 I$Ra*r
Hardness (HK) 480 Rch?@O# J
Poission's Ratio 0.2 5f- eWW]!
Climatic resistance (ISO - 719 - HGB) Grade 1 d# >iFD+
Acid resistance Grade 1 VQ(l=k:}2
Alkali resistance Grade 1 @\}w8
Melting temperature (°C) 1680 @@pI>~#zh
Working Point (°C) 1252 ~}@cSv'(1
Softening Point (°C) 820 ± 10 C'S&
Annealing Point (°C) 560 ± 10 jT $
Stress Point (°C) 510 ± 10 [R%Pf/[Fr
Surface Tension (dyn/cm) 340-350 (1252 °C) +hL%8CVU M
Dielectric constant (1MHz, 20°C) 4.6 T*b Bw
Dielectric loss (1MHz, 20°C) 37 x 10-4 ;+NU;f/WM
Dielectric strength (50MHz, 25°C) Kv/mm 16 <" Hb X
Color Code (λ5/λ80) 297.6/337.2 oRZ--1oR_
Volume Sensitivity (log ρ) 6 JUjT]S%
250°C FJH'!P\
350°C
.{ -C*
8.0 >oasA2S
6.5 SMIr@*R
Environmental Protection Pb < 50 ppm 01&J7A2
As < 5 ppm KL^hYjC
Cd < 5 ppm _ I
A{I
