SSK3 by Schott

Obsolete Unknown Environmentally Dangerous

SSK3 by Schott is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.614837 and a Vd of 51.1603. It has medium thermal expansion (CTE of 6.6×10⁻⁶/K) and dangerous environmental properties.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.334–2.325 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.334–2.325 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.334–2.325 µm
Optical Properties
Refractive Index (nd) 1.614837
Abbe Number (Vd) 51.1603
Dispersion Formula Sellmeier
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{1 + \frac{1.39916\,\lambda^2}{\lambda^2 - 0.00828661} + \frac{0.158924\,\lambda^2}{\lambda^2 - 0.0354515} + \frac{0.991913\,\lambda^2}{\lambda^2 - 115.228}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 6.6
TCE 100/300°C (10-6/K) 7.6
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[3.94 \times 10^{-6} + 2(1.36 \times 10^{-8})\,\Delta T + 3(-6.41 \times 10^{-11})\,\Delta T^2 + \frac{5.32 \times 10^{-7} + 2(3.68 \times 10^{-10})\,\Delta T}{\lambda - 0.224}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.61
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Notes

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Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
BACED3 Hoya 1.614838 51.1513
BSM23 Ohara 1.614839 51.172377
K-SSK3 Sumita 1.61484 51.1
SSK3 Sumita 1.61484 51.1
BSM28 Ohara 1.617722 49.83232
S-BSM28 Ohara 1.617722 49.815052
BACED9 Hoya 1.620119 49.823001
C0550 Corning 1.605004 50.419332
C05-50 Corning 1.605004 50.419332
K-SSK9 Sumita 1.62012 49.8
Similar Glasses (Schott)
Glass Manufacturer nd Vd Compare
N-SSK8 Schott 1.61773 49.83
SSKN8 Schott 1.61772 49.771451
SSK50 Schott 1.617954 52.609086
N-SSK20 Schott 1.62568 50.2
SSK2 Schott 1.622301 53.154887
N-SSK2 Schott 1.62229 53.27
SSK1 Schott 1.617201 53.912403
SSK51 Schott 1.603607 53.631714
BALF50 Schott 1.588931 51.371228
SSK4A Schott 1.61765 55.141867
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