Refractive index (nd) 1.47200 >YI Vi4''
Dispersion (nF- nC) 0.00719 G&S2U=KdV%
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 <vcU5
.K.
Thermal conductivity (W/(m * °C)) 1.14 [ar0{MPYd
Average thermal capacity (KJ/ (kg * °C)) 0.83 eN])qw{
Maximal operation temperature (°C) xMr,\r'+
Short Term prZ
,4\
Long Term mx^Ga=:
?
Thermal stability w_{tS\
500 ~| j
eNT
450 tp`1S+'~j
375 I)mB]j
Density (g/cm3) 2.23 MtkU]XKGT
Elastic modulus E (kN/mm3) 64 R;DU68R
Hardness (HK) 480 C8K2F5c5
Poission's Ratio 0.2 hDxq9EF
Climatic resistance (ISO - 719 - HGB) Grade 1 (;#c[eKy
Acid resistance Grade 1 `X<B+:>v-
Alkali resistance Grade 1 '3S~QN
Melting temperature (°C) 1680 ^fsMfB
Working Point (°C) 1252 2 .3_FXSt
Softening Point (°C) 820 ± 10 %:aXEjm@
Annealing Point (°C) 560 ± 10 JmCMFqB9
Stress Point (°C) 510 ± 10 ;M?)-dpZ
Surface Tension (dyn/cm) 340-350 (1252 °C) J+/}m}bx
Dielectric constant (1MHz, 20°C) 4.6 c'2/ C5
Dielectric loss (1MHz, 20°C) 37 x 10-4 SES.&e|!6
Dielectric strength (50MHz, 25°C) Kv/mm 16 xFF!)k #
Color Code (λ5/λ80) 297.6/337.2 ZA="Dac
Volume Sensitivity (log ρ) 529b. |
250°C D[+LU(
350°C T#B#q1/
8.0
7IxeSxXH
6.5 z>N[veX%
Environmental Protection Pb < 50 ppm VKttJok1
As < 5 ppm AERJ]$\
Cd < 5 ppm 0j@mzd2