Refractive index (nd) 1.47200 K2!KMhvQ
Dispersion (nF- nC) 0.00719 *.20YruU;j
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 nF05p2Mh
Thermal conductivity (W/(m * °C)) 1.14 <pz;G}
Average thermal capacity (KJ/ (kg * °C)) 0.83 ?QZ\KY
Maximal operation temperature (°C) ;]|Z8#s
Short Term m(?M]CH(A
Long Term 5pz%DhjLo
Thermal stability .HMO7n6)8l
500 =6/0=a[
450 !\CoJ.5=
375 JVU:`BH
Density (g/cm3) 2.23 !J.qH%S5
Elastic modulus E (kN/mm3) 64 >Efv?8$E\
Hardness (HK) 480 $/6.4"j
Poission's Ratio 0.2 \acjv|]
Climatic resistance (ISO - 719 - HGB) Grade 1 qbmy~\ZY
Acid resistance Grade 1 u=A&n6Q[Vo
Alkali resistance Grade 1 [CJ&Yz Ji
Melting temperature (°C) 1680 fH>]>2fS
Working Point (°C) 1252 |0dmdrKD
Softening Point (°C) 820 ± 10 z6$W@-Vd
Annealing Point (°C) 560 ± 10 cs,%Zk.xjw
Stress Point (°C) 510 ± 10 Wn<