P-SK58A by Schott

Preferred Unknown Precision Molding Environmentally Friendly

P-SK58A by Schott is a preferred optical glass. It transmits from 0.32 to 2.50 µm with an nd of 1.58913 and a Vd of 61.15. It has medium thermal expansion (CTE of 6.82×10⁻⁶/K) and precision molding compatibility.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.32–2.5 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.32–2.5 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.320–2.500 µm
Optical Properties
Refractive Index (nd) 1.58913
Abbe Number (Vd) 61.15
Dispersion Formula Sellmeier
Wavelength Range 0.32 — 2.5 µm
$$n(\lambda) = \sqrt{1 + \frac{1.31678\,\lambda^2}{\lambda^2 - 0.00720717} + \frac{0.171155\,\lambda^2}{\lambda^2 - 0.024566} + \frac{1.12501\,\lambda^2}{\lambda^2 - 102.74}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 6.82
TCE 100/300°C (10-6/K) 8.41
Thermal Conductivity (W/mK) 1.02
Heat Capacity (J/gK) 0.77
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[3.16 \times 10^{-6} + 2(1.23 \times 10^{-8})\,\Delta T + 3(-1.08 \times 10^{-11})\,\Delta T^2 + \frac{4.41 \times 10^{-7} + 2(3.2 \times 10^{-10})\,\Delta T}{\lambda - 0.176}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 2.971
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) 96.85
Poisson's Ratio 0.25
Knoop Hardness (kgf/mm²) 662.0
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Notes

suitable for precision molding

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
L-BAL35 Ohara 1.58913 61.152601
D-ZK3 CDGM 1.58913 61.152901
S-BAL35 Ohara 1.58913 61.135024
BAL35 Ohara 1.58913 61.182174
D-ZK3A CDGM 1.58913 61.101573
K-SKLD5 Sumita 1.58913 61.2
K-SK5 Sumita 1.58913 61.2
SK5 Sumita 1.58913 61.2
B89-61 Corning 1.588998 61.218914
BAL35Y Ohara 1.58913 61.233033
Similar Glasses (Schott)
Glass Manufacturer nd Vd Compare
SK5 Schott 1.58913 61.266803
N-SK5HTi Schott 1.58913 61.27
N-SK5 Schott 1.58913 61.27
P-SK57 Schott 1.587 59.6
P-SK57Q1 Schott 1.586 59.5
SK12 Schott 1.583131 59.448822
N-SK14 Schott 1.60311 60.6
SK14 Schott 1.60311 60.596819
SK13 Schott 1.591809 58.300621
SK7 Schott 1.60729 59.459272
Compare Glasses
    Compare Selected