Refractive index (nd) 1.47200 VssWtL
Dispersion (nF- nC) 0.00719 2h)Qz+|7
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 nU isC5HW
Thermal conductivity (W/(m * °C)) 1.14 >Pvz5Hf/wW
Average thermal capacity (KJ/ (kg * °C)) 0.83 _N0N #L4M
Maximal operation temperature (°C) @3S:W2k
Short Term <|w(Sn
Long Term HuQdQ* Q
Thermal stability 1y,/|Y
500 dyohs_
450 WF2t{<]^e
375 3 .KNAObO
Density (g/cm3) 2.23 |t~>Xs
Elastic modulus E (kN/mm3) 64 W r'1Y7z
Hardness (HK) 480 vcaPd}nf
Poission's Ratio 0.2 GR_caP
Climatic resistance (ISO - 719 - HGB) Grade 1 Py?Q::
Acid resistance Grade 1 7< Y aw,G
Alkali resistance Grade 1 $R:Q R?
Melting temperature (°C) 1680 I~;H'7|e
Working Point (°C) 1252 'u d[#@2
Softening Point (°C) 820 ± 10
MT$)A:"
Annealing Point (°C) 560 ± 10 fVdu9 l
Stress Point (°C) 510 ± 10 \^jRMIM==
Surface Tension (dyn/cm) 340-350 (1252 °C) a|4Q6Ycu
Dielectric constant (1MHz, 20°C) 4.6 su3Wk,MLP
Dielectric loss (1MHz, 20°C) 37 x 10-4 p%K(dA
Dielectric strength (50MHz, 25°C) Kv/mm 16 O=^/58(m
Color Code (λ5/λ80) 297.6/337.2 g}L>k}I?!W
Volume Sensitivity (log ρ) ~qK/w0=j
250°C kv;P2:"|
350°C [ugr<[6
8.0 <d >!%
6.5 F07X9s44E
Environmental Protection Pb < 50 ppm }]JHY P\
As < 5 ppm ;WgUhA
;q
Cd < 5 ppm +d(|Jid
