Fused Silica Special-Shaped Glass: Fused Silica (CTE 0.55 x 10^-6 /K, 185 nm – 2.5 um); Any DXF/STEP outline within 600 x 400 mm. Single-piece prototypes to production volumes, quoted from your drawing.
A drawing for fused silica special-shaped glass is mostly a conversation about edges and datums. We produce them in Fused Silica at Any DXF/STEP outline within 600 x 400 mm, with contour +/-0.05 mm as the controlling tolerance, and finish the perimeter per spec.
Specifications at a glance
| Material | Fused Silica (JGS1 (UV), JGS2 (standard), JGS3 (IR)) |
|---|---|
| Thermal expansion (CTE) | 0.55 x 10^-6 /K |
| Service temperature | 1,100 C continuous |
| Transmission range | 185 nm – 2.5 um |
| Density | 2.20 g/cm3 |
| Knoop hardness | 500 kg/mm2 |
| Refractive index | 1.458 @ 587 nm |
| Stock thickness | 0.10 – 50 mm |
| Maximum blank size | 450 x 450 mm |
| Geometry | Special-Shaped Glass |
| Size envelope | Any DXF/STEP outline within 600 x 400 mm |
| Key tolerance | contour +/-0.05 mm |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Manufacturing capability
One material, many routes: on Fused Silica we also quote cnc machining, grinding, etching, edge grinding, and multi-step drawings are the norm rather than the exception.
Production route: cnc machining, laser cutting, edge grinding – selected per geometry and volume. Edge condition: chamfered 0.1 – 0.5 mm as standard.
Design guidance
Three items decide most of the cost and lead time on this work:
- Material note: its hardness and brittleness demand diamond tooling and controlled feeds.
- Hold the controlling dimension (contour +/-0.05 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.
Who orders this
fused silica special-shaped glass shows up across mems devices (cap wafers, TGV substrates, motion-sensor lids); microfluidic devices (chips, manifolds, via plates, bonded stacks); laser systems (windows, beam splitters, debris shields). Background reading on the underlying material science: RP Photonics: fused silica.
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 CNC machining capability, fused silica wafers 2-12 inch, special-shaped glass plates.
Buyer questions, answered
Is there a minimum order for fused silica special-shaped glass?
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.