| rags_to_rings |
2023-04-10 16:54 |
Refractive index (nd) 1.47200 )ZviS.
Dispersion (nF- nC) 0.00719 }3Df]
Coefficient of Linear thermal expansion (x10-6/°C) 3.25 # e$\~c Pd
Thermal conductivity (W/(m * °C)) 1.14 }[
7Nb90v
Average thermal capacity (KJ/ (kg * °C)) 0.83 kaV%0Of]
Maximal operation temperature (°C) .!!79 6hS
Short Term R+k=Ea&x
Long Term ~igRg ~k:/
Thermal stability W6 h NJb
500 {kT#o3,>w6
450 Xk
5oybDI
375 ![qRoYpbg8
Density (g/cm3) 2.23 K@y-)I2]
Elastic modulus E (kN/mm3) 64 &3!i@2d;3f
Hardness (HK) 480
gvvFU,2
Poission's Ratio 0.2 cYBrRTrI#
Climatic resistance (ISO - 719 - HGB) Grade 1 1uK)1%vK
Acid resistance Grade 1 clij|?O
Alkali resistance Grade 1 I8XGU)
Melting temperature (°C) 1680 h #$ _<U
Working Point (°C) 1252 :YkDn~@
Softening Point (°C) 820 ± 10 {jq^hM!TEy
Annealing Point (°C) 560 ± 10 ;igE IGR
Stress Point (°C) 510 ± 10 D'U\]'.
Surface Tension (dyn/cm) 340-350 (1252 °C) eh8<?(eK
Dielectric constant (1MHz, 20°C) 4.6 |DdW<IT`0
Dielectric loss (1MHz, 20°C) 37 x 10-4 3JwSgc b
Dielectric strength (50MHz, 25°C) Kv/mm 16 #JX|S'\x
Color Code (λ5/λ80) 297.6/337.2 w*]_FqE
Volume Sensitivity (log ρ) WV9[DFU
250°C ?h>(&H jWV
350°C 0TuNA\Ug+
8.0 |V*e2w
6.5 ;h*"E(P p
Environmental Protection Pb < 50 ppm 'Q^G6'(SaK
As < 5 ppm [U+<uZzOC
Cd < 5 ppm :$) aME q
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