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k9 bk7 glass plate

Optical K9/BK7 Glass Plate

Price range: $10.00 through $90.00

  • Type: Optical K9/BK7 Glass Plate
  • Material: high quality borosilicate crown glass
  • Feature: >91% @380-760nm, nd-1.516, vd-64, Mohs6.5
  • Order Processing Time: 3 to 5 work days
  • Customization：available
  • Item NO.: M261302
SKU: N/A Category: Tags: ,

Size: L=length*W=weight*T=thickness

K9/BK7 glass, also known as optical crown glass, is a widely used borosilicate glass with well-balanced properties, making it ideal for optics and crystal-like crafts.

Key Characteristics:
Optical Clarity: High transmittance (>91% in visible light) with excellent homogeneity.
Refractive Index & Dispersion: Moderate refractive index (~1.516) and high Abbe number (~64), meaning low chromatic aberration.
Hardness: Relatively hard (Mohs ~6.5), providing good scratch resistance.
Thermal Stability: Low coefficient of thermal expansion offers improved thermal shock resistance.
Workability: Easier to cut, grind, and polish compared to many specialty optical glasses.
Common Uses: Lenses, prisms, windows in optical instruments, and high-quality decorative items or “simulated crystal.”
Weight N/A
Size(L*W*T)

3mmx3mmx3mm(10pcs), 8mmx8mmx1mm(10pcs), 8mmx8mmx2mm(10pcs), 10mmx10mmx1mm(10pcs), 10mmx10mmx2mm(10pcs), 15mmx15mmx1mm(10pcs), 18mmx17mmx1mm(10pcs), 20mmx20mmx0.7mm(10pcs), 20mmx20mmx1mm(10pcs), 30mmx8mmx2mm(10pcs), 30mmx22mmx2mm(10pcs), 36mmx28mmx2mm(10pcs), 45mmx25mmx1mm(10pcs), 40mmx40mmx1mm(10pcs), 45mmx45mmx1mm(10pcs), 50mmx50mmx1mm(10pcs), 50mmx50mmx2mm(10pcs), 55mmx55mmx1mm(10pcs), 60mmx60mmx2mm(10pcs), 78mmx40mmx1mm(10pcs), 80mmx70mmx2mm(10pcs), 85mmx15mmx2mm(10pcs), 100mmx24mmx1mm(10pcs), Payment Link for Customization

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