Quartz Glass With Edge Notches: Quartz Glass (CTE 0.59 x 10^-6 /K, 260 nm – 2.5 um); notch width from 0.5 mm, positioned +/-0.05 mm. Single-piece prototypes to production volumes, quoted from your drawing.
Buyers come to quartz glass with edge notches 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.
Specifications at a glance
| 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 | Edge Notches |
| Capability | notch width from 0.5 mm, positioned +/-0.05 mm |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
What the process holds
Beyond this page, Quartz Glass routinely runs through edge grinding, drilling, grinding, etching in our shop – most real parts combine two or three of these steps.
These features are produced by cnc machining or laser cutting. Capability: notch width from 0.5 mm, positioned +/-0.05 mm. Design rule worth copying onto the drawing: radius every internal notch corner – sharp corners crack.
Specification advice
The shop-floor rules that matter here:
- Material note: natural-quartz batches vary in metallic ppm, so semiconductor lots need certs per melt.
- Feature rule: radius every internal notch corner – sharp corners crack.
- 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.
For the complete framework, see the tolerance design guide and the holes and edges design guide.
Typical applications
quartz glass with edge notches shows up across 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.
For adjacent specifications, see high-purity quartz guide, high-temperature quartz windows, fused silica material guide.
Common questions
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 edge notches?
Radius every internal notch corner – sharp corners crack.
Is there a minimum order for quartz glass with edge notches?
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.