Quartz Glass With Chamfered Holes: Quartz Glass (CTE 0.59 x 10^-6 /K, 260 nm – 2.5 um); 0.1 – 0.5 mm chamfer legs both sides. Single-piece prototypes to production volumes, quoted from your drawing.
Buyers come to quartz glass with chamfered holes with two kinds of parts: catalog-adjacent blanks that need accurate finishing, and genuinely custom geometry. We quote both from the same dataset – GE214-equivalent, semiconductor grade stock in 0.20 – 60 mm, blanks to 450 mm diameter.
Specification envelope
| Material | Quartz Glass (GE214-equivalent, semiconductor grade) |
|---|---|
| Thermal expansion (CTE) | 0.59 x 10^-6 /K |
| Service temperature | 1,050 C continuous |
| Transmission range | 260 nm – 2.5 um |
| Density | 2.20 g/cm3 |
| Knoop hardness | 500 kg/mm2 |
| Refractive index | 1.459 @ 587 nm |
| Stock thickness | 0.20 – 60 mm |
| Maximum blank size | 450 mm diameter |
| Feature | Chamfered Holes |
| Capability | 0.1 – 0.5 mm chamfer legs both sides |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Capabilities and limits
One material, many routes: on Quartz Glass we also quote dicing, sandblasting, ultrasonic machining, double-side polishing, and multi-step drawings are the norm rather than the exception.
These features are produced by drilling or edge grinding. Capability: 0.1 – 0.5 mm chamfer legs both sides. Design rule worth copying onto the drawing: chamfers stop hole-edge chips from propagating.
DFM notes from the shop floor
Before sending the RFQ, check these against your drawing:
- Material note: natural-quartz batches vary in metallic ppm, so semiconductor lots need certs per melt.
- Feature rule: chamfers stop hole-edge chips from propagating.
- 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.
Application context
Orders for quartz glass with chamfered holes cluster in semiconductor equipment (view ports, wafer carriers, plasma rings, chamber windows); laboratory instruments (cuvettes, sight glasses, stir-cell windows). Background reading on the underlying material science: ScienceDirect: quartz glass.
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.
Useful companion pages: CNC machining capability, high-purity quartz guide, thickness and flatness guide.
Buyer questions, answered
How does Quartz Glass behave under heat?
CTE is 0.59 x 10^-6 /K and continuous service reaches 1,050 C continuous, which is what drives its use where fused from natural quartz crystal matters.
What is the design rule for chamfered holes?
Chamfers stop hole-edge chips from propagating.
Is there a minimum order for quartz glass with chamfered 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.
Specifications on this page were last reviewed by our engineering team in August 2026.