Quartz Glass Glass With Stepped Profiles – Quartz Glass (CTE 0.59 x 10^-6 /K, 260 nm – 2.5 um); Steps from 0.2 mm, land flatness 5 um. No minimum order; DFM review included with every RFQ.
We build quartz glass glass with stepped profiles to print – Steps from 0.2 mm, land flatness 5 um – primarily in Quartz Glass. Typical use: seat-and-shoulder mounting for sealed windows.
The numbers
| 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 |
| Geometry | Glass With Stepped Profiles |
| Size envelope | Steps from 0.2 mm, land flatness 5 um |
| Key tolerance | step depth +/-0.02 mm |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Getting the drawing right
The shop-floor rules that matter here:
- Material note: natural-quartz batches vary in metallic ppm, so semiconductor lots need certs per melt.
- Hold the controlling dimension (step depth +/-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.
For the complete framework, see the tolerance design guide and the holes and edges design guide.
Capabilities and limits
One material, many routes: on Quartz Glass we also quote polishing, edge grinding, drilling, ultrasonic machining, and multi-step drawings are the norm rather than the exception.
Production route: cnc machining, ultrasonic machining, grinding – selected per geometry and volume. Edge condition: chamfered 0.1 – 0.5 mm as standard.
Who orders this
The recurring buyers of quartz glass glass with stepped profiles: 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 custom FTO glass, CCD screening plates, 4 inch Borofloat wafers.
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 sizes are available for glass with stepped profiles?
Steps from 0.2 mm, land flatness 5 um, held to step depth +/-0.02 mm.
Is there a minimum order for quartz glass 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.
Specifications on this page were last reviewed by our engineering team in August 2026.