Quick answer: Borosilicate Glass Glass Plates With Holes covers Borosilicate Glass (CTE 3.3 x 10^-6 /K, 360 nm – 2.0 um); Holes 0.15 – 100 mm in plates to 40 mm thick. Prototypes ship in 5-10 working days.
borosilicate glass glass plates with holes are ordered for mounting plates, feedthroughs and manifolds. The geometry envelope is Holes 0.15 – 100 mm in plates to 40 mm thick, held to position +/-0.02 mm, in Borosilicate Glass.
Key parameters
| 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 | Glass Plates With Holes |
| Size envelope | Holes 0.15 – 100 mm in plates to 40 mm thick |
| Key tolerance | position +/-0.02 mm |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Design guidance
Before sending the RFQ, check these against your drawing:
- Material note: sheet stock carries more thickness variation than float wafer stock, so lapping is often the first step.
- Hold the controlling dimension (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.
Capabilities and limits
One material, many routes: on Borosilicate Glass we also quote laser cutting, sandblasting, edge grinding, coring, and multi-step drawings are the norm rather than the exception.
Production route: drilling, coring, laser cutting – selected per geometry and volume. Edge condition: optional chamfered hole entry.
Where these parts end up
The recurring buyers of borosilicate glass glass plates with holes: 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 special-shaped glass plates, LED groove cover glass, glass wafer bonding.
Common questions
Is there a minimum order for borosilicate glass glass plates with holes?
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.