Refractive index (nd) 1.47200 rB7(&(n>^
Dispersion (nF- nC) 0.00719 jgO{DNe(=
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 i2!{. *.
Thermal conductivity (W/(m * °C)) 1.14 SZ1C38bd,.
Average thermal capacity (KJ/ (kg * °C)) 0.83 Ugs<WVp $
Maximal operation temperature (°C) vu#:D1/BB
Short Term ims *|~{sr
Long Term +ypT "y
Thermal stability B}!n6 j`
500 #/ 1B am6
450 `kz_ q/K
375 nrxN_0 R%
Density (g/cm3) 2.23 U{ _O=S u
Elastic modulus E (kN/mm3) 64 =A AH}
Hardness (HK) 480 ~_oTEXT^O
Poission's Ratio 0.2 lW2q V R
Climatic resistance (ISO - 719 - HGB) Grade 1 6zI?K4o
Acid resistance Grade 1 Df4n9m}E
Alkali resistance Grade 1 7u}r^+6_o
Melting temperature (°C) 1680 6Q>w\@lF
Working Point (°C) 1252 J7maG|S(DF
Softening Point (°C) 820 ± 10 P&S R;{:y
Annealing Point (°C) 560 ± 10 0- #ct1-
Stress Point (°C) 510 ± 10 tN0>5'/
Surface Tension (dyn/cm) 340-350 (1252 °C) !eO?75/
Dielectric constant (1MHz, 20°C) 4.6 ofi']J{R
Dielectric loss (1MHz, 20°C) 37 x 10-4 f2Slsl;
Dielectric strength (50MHz, 25°C) Kv/mm 16 >/n/ n{{
Color Code (λ5/λ80) 297.6/337.2 Vw#07P#A
Volume Sensitivity (log ρ) @z,'IW74V
250°C kOc'@;_O
350°C -`gC?yff:
8.0 {B}0 LJIpL
6.5 tJn2:}-s
Environmental Protection Pb < 50 ppm 9 o18VJR
As < 5 ppm Zsuh 8t
Cd < 5 ppm j IW:O
