Refractive index (nd) 1.47200 ZPWY0&9
Dispersion (nF- nC) 0.00719 >|L,9lR_b
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 AvdxDN
Thermal conductivity (W/(m * °C)) 1.14 %D|27gh
Average thermal capacity (KJ/ (kg * °C)) 0.83 dUOvv/,FZT
Maximal operation temperature (°C) I"4j152P|
Short Term .'C$w1[w
Long Term 7@u0;5p|
Thermal stability Paz
yY
500 q1sK:)Hu+
450 $9dm2#0d
375 N\ ?%944R
Density (g/cm3) 2.23 $d
M:
5y
Elastic modulus E (kN/mm3) 64 9"g=it2Rh6
Hardness (HK) 480 HDUtLUd
Poission's Ratio 0.2 E.]sX_X?
Climatic resistance (ISO - 719 - HGB) Grade 1 h_ef@ZwSw
Acid resistance Grade 1 %j %}iM/(<
Alkali resistance Grade 1 Hxft~*
Melting temperature (°C) 1680 3Xgf=yG:M
Working Point (°C) 1252 [L 0`B9TD~
Softening Point (°C) 820 ± 10 Jw'%[(q
Q
Annealing Point (°C) 560 ± 10 {yQeLION
Stress Point (°C) 510 ± 10 rr fL[
Surface Tension (dyn/cm) 340-350 (1252 °C) [Q&{#%M
Dielectric constant (1MHz, 20°C) 4.6 |Ui1Mm
Dielectric loss (1MHz, 20°C) 37 x 10-4 CZ*c["x2
Dielectric strength (50MHz, 25°C) Kv/mm 16 6/@"K
HHVe
Color Code (λ5/λ80) 297.6/337.2 lwhAF, '$
Volume Sensitivity (log ρ) (3`Q`o;
250°C i|PQNhUe
350°C XQ&iV7
8.0 W!pLk/|ls
6.5 (SV(L~T_
Environmental Protection Pb < 50 ppm |[n-H;0
As < 5 ppm ,Ju f
Cd < 5 ppm _ETG.SYq