Quartz Glass With Stepped Profiles – Quartz Glass (CTE 0.59 x 10^-6 /K, 260 nm – 2.5 um); step depth +/-0.02 mm, concentric or linear. No minimum order; DFM review included with every RFQ.
When a drawing calls out Quartz Glass, three numbers matter before any machining starts: CTE of 0.59 x 10^-6 /K, service temperature to 1,050 C continuous, and a transmission window of 260 nm – 2.5 um. quartz glass with stepped profiles here begin with those numbers and end with dimensional reports.
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 | Stepped Profiles |
| Capability | step depth +/-0.02 mm, concentric or linear |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Manufacturing capability
One material, many routes: on Quartz Glass we also quote grinding, cnc machining, edge grinding, double-side polishing, and multi-step drawings are the norm rather than the exception.
These features are produced by cnc machining or grinding. Capability: step depth +/-0.02 mm, concentric or linear. Design rule worth copying onto the drawing: steps let windows seat without adhesive in the aperture.
DFM notes from the shop floor
Three items decide most of the cost and lead time on this work:
- Material note: natural-quartz batches vary in metallic ppm, so semiconductor lots need certs per melt.
- Feature rule: steps let windows seat without adhesive in the aperture.
- 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 stepped profiles 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.
The fastest route to a quote is geometry: use the 3D builder below, draw a dimensioned 2D drawing from it, or open the site-wide custom glass machining 3D + 2D builder for fully custom parts.
Engineers scoping this work usually also review ultra-thin quartz discs, precision glass grinding, fused silica wafers 2-12 inch.
Frequently asked 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 stepped profiles?
Steps let windows seat without adhesive in the aperture.
Is there a minimum order for quartz glass with stepped profiles?
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.