Borosilicate Glass Perforated Glass Plates – Borosilicate Glass (CTE 3.3 x 10^-6 /K, 360 nm – 2.0 um); Hole grids from 0.15 mm diameter, pitch from 0.5 mm. No minimum order; DFM review included with every RFQ.
borosilicate glass perforated glass plates are ordered for airflow sensors, filtration and vacuum chucks. The geometry envelope is Hole grids from 0.15 mm diameter, pitch from 0.5 mm, held to hole position +/-0.02 mm, in Borosilicate Glass.
Specification envelope
| Material | Borosilicate Glass (3.3 expansion group per ISO 3585) |
|---|---|
| Thermal expansion (CTE) | 3.3 x 10^-6 /K |
| Service temperature | 450 C continuous |
| Transmission range | 360 nm – 2.0 um |
| Density | 2.23 g/cm3 |
| Knoop hardness | 480 kg/mm2 |
| Refractive index | 1.473 @ 587 nm |
| Stock thickness | 0.50 – 30 mm |
| Maximum blank size | 600 x 400 mm |
| Geometry | Perforated Glass Plates |
| Size envelope | Hole grids from 0.15 mm diameter, pitch from 0.5 mm |
| Key tolerance | hole position +/-0.02 mm |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Capabilities and limits
One material, many routes: on Borosilicate Glass we also quote double-side polishing, polishing, cnc machining, drilling, and multi-step drawings are the norm rather than the exception.
Production route: drilling, laser cutting, ultrasonic machining – selected per geometry and volume. Edge condition: optional chamfered hole entry.
Design guidance
Three items decide most of the cost and lead time on this work:
- Material note: sheet stock carries more thickness variation than float wafer stock, so lapping is often the first step.
- Hold the controlling dimension (hole position +/-0.02 mm) and let secondary dimensions carry standard tolerance – it is the single biggest cost lever.
- Over-specification is the quiet budget killer: a 20/10 scratch-dig face costs roughly three times an 80/50 face, so grade each surface individually.
The full rules live in our tolerance design guide and holes and edges design guide.
Who orders this
The recurring buyers of borosilicate glass perforated glass plates: medical diagnostics (flow cells, slides, microplate bottoms, cuvette windows); scientific instruments (reference flats, cells, prism mounts, stage inserts); laboratory instruments (cuvettes, sight glasses, stir-cell windows). Background reading on the underlying material science: ISO 3585 borosilicate glass 3.3.
Dimensions still moving? Configure this part live in the 3D + 2D builder below, or open the full custom glass machining 3D + 2D builder to start from a blank canvas.
For adjacent specifications, see perforated quartz plates, material selection guide, glass sandblasting.
Frequently asked questions
Is there a minimum order for borosilicate glass perforated glass plates?
No. Single prototypes are accepted, and pricing steps down at 10, 100 and 1,000 pieces.
How fast can prototypes ship?
Machined prototypes ship in 5 – 10 working days. Coated or bonded parts add 1 – 2 weeks depending on queue slots.
What files do you need for a quote?
A dimensioned PDF plus DXF or STEP geometry. If only a sketch exists, our drawing review service formalizes it before quoting.
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
Specifications on this page were last reviewed by our engineering team in September 2026.