Fused Silica Glass can be supplied and processed as Sight Glass Disc when the exact grade or functional material duty, stock form, dimensions, thickness, edge and surface requirements are defined by the drawing. The assigned material or application record notes: Material- and grade-dependent; qualify cutting, grinding, drilling, lapping and polishing against fracture and surface requirements. The assigned product record adds: Solid round disc, annulus, center-hole disc, multi-hole disc or stepped disc.
Can Fused Silica Glass Be Used for Sight Glass Disc?
Fused Silica Glass can be supplied and processed as Sight Glass Disc when the exact grade or functional material duty, stock form, dimensions, thickness, edge and surface requirements are defined by the drawing. The assigned material or application record notes: Material- and grade-dependent; qualify cutting, grinding, drilling, lapping and polishing against fracture and surface requirements. The assigned product record adds: Solid round disc, annulus, center-hole disc, multi-hole disc or stepped disc.
Fused Silica Glass
Material- and grade-dependent; qualify cutting, grinding, drilling, lapping and polishing against fracture and surface requirements
Sight Glass Disc
Solid round disc, annulus, center-hole disc, multi-hole disc or stepped disc
Drawing-defined feasibility
Final feasibility is reviewed against grade, supplied stock, dimensions, thickness, holes, cutouts, edges, surfaces, quantity and inspection criteria.
How the Glass Type and Product Form Fit Together
The assigned technical records separate published material or application guidance from the dimensions and acceptance criteria that remain drawing-specific.
| Review area | Assigned technical basis |
|---|---|
| Material definition | Material- and grade-dependent; qualify cutting, grinding, drilling, lapping and polishing against fracture and surface requirements |
| Product-form definition | Solid round disc, annulus, center-hole disc, multi-hole disc or stepped disc |
| Typical materials | BOROFLOAT 33, fused silica, soda-lime float, optical filter glass or sapphire selected by wavelength and environment |
| Application duty | Provide continuous visual observation across a vessel, tank or pipe pressure boundary without losing containment. |
| Inspection basis | Diameter and thickness measurement, concentricity/runout check, edge microscopy, transmitted-light cosmetic inspection and flatness when functional |
Fused Silica Properties Relevant to This Product Form
Published values retain their grade and source conditions. Finished-part behavior also depends on geometry, machining, edge condition and assembly.
| Material property | Published reference |
|---|---|
| Material category | Fused silica |
| Refractive index | 1.458467 index (Spectral refractive-index table); 1.474555 index (Spectral refractive-index table); 1.452469 index (Spectral refractive-index table) |
| Available forms | Sheet, plate, disc, window, tube, rod or blank where the named grade is supplied in that form |
Geometry, Surface and Inspection Requirements
Product-family data is a planning reference. The drawing must identify the exact shape, critical zones and measurable acceptance limits.
| Product requirement | What to define |
|---|---|
| Geometry and available forms | Solid round disc, annulus, center-hole disc, multi-hole disc or stepped disc |
| Dimensions and thickness | 6.35–304.8 mm published circle-grinding diameter range; larger discs require route review |
| Holes, cutouts and features | Dimension holes, slots, cutouts, steps, grooves, radii and their edge distances. |
| Edge and surface zones | Seamed, ground, pencil-ground, polished or chamfered according to mounting and handling risk |
| Inspection | Diameter and thickness measurement, concentricity/runout check, edge microscopy, transmitted-light cosmetic inspection and flatness when functional |
| Packaging and handling | State cleanliness, protective film, separators, individual packing and shipping requirements. |
| Manufacturing route item | Review requirement |
|---|---|
| Supplied stock | Sheet, plate, disc, window, tube, rod or blank where the named grade is supplied in that form |
| Compatible route | Precision cutting; CNC/ultrasonic machining where qualified; grinding; lapping; polishing; cleaning; inspection |
| High-risk geometry | Grade, thickness, surface state, wavelength and temperature conditions must not be generalized |
| Drawing release | For Fused Silica Glass Sight Glass Disc, define datums, critical features, edge and surface zones, quantity, inspection and packaging before releasing the route. |
Inspection Focus for Custom Fused Silica Glass Sight Glass Disc Processing
Acceptance should connect every critical drawing characteristic to an instrument, fixture condition and stated limit.
| Review item | Project-specific focus |
|---|---|
| Product design risk | Center-hole breakout, edge chips, wedge, mounting point load and thermal-gradient fracture |
| Product inspection | Diameter and thickness measurement, concentricity/runout check, edge microscopy, transmitted-light cosmetic inspection and flatness when functional |
| Application failure modes | Thermal shock, gasket point loading, wrong pressure derating, chemical surface attack and edge-initiated fracture. |
| Application inspection | Dimensions, edge microscopy, transmitted-light inspection, certificate review, then assembly leak/pressure validation. |
| Acceptance method | Scratch-Dig Inspection: Compare calibrated result with the drawing, purchase order or approved test specification |
| Feature-to-edge damage | For Custom Fused Silica Glass Sight Glass Disc Processing, inspect chips, microcracks, breakouts and edge damage around processed features and adjacent walls. |
Information Needed Before Quotation
State the exact material grade or selection duty, stock form, dimensions, tolerance, edge and surface zones, quantity and inspection documentation.
RFQ inputs
- Material grade, diameter, thickness, hole pattern, edge finish, flatness or wedge, surface quality, coating, operating temperature and packaging
- Standard, diameter, thickness, sight opening, pressure, temperature, medium, armature, gasket, thermal cycle and documentation.
- Provide a drawing revision, material or grade, quantity, dimensions, tolerances, critical surfaces and the required inspection record.
Selected Material, Product and Application References
References support the assigned records but do not replace an approved drawing, first-article result or application qualification.
- HPFS Fused Silica Industrial GradeCorning
- High Purity Fused SilicaCorning
- Abrisa Glass Machining CapabilitiesAbrisa Technologies
- Valley Design Optical Polishing, Lapping, Dicing and MachiningValley Design
- Borofloat Disc for the Lighting IndustrySwift Glass
Request a Project-Specific Glass Review
Send the drawing, material, dimensions, quantity, tolerances, surfaces and inspection requirements for feasibility review.
- Material: Fused Silica Glass
- Drawing or part sketch
- glass type/grade
- Thickness / part size
- Quantity
STEP/STP, DXF, DWG, PDF, IGS/IGES or ZIP.
Confidential drawing review. NDA support available on request.
Frequently Asked Questions
These answers use the material, process, product and application data assigned to this page.
Can Fused Silica Glass be made as Sight Glass Disc for Custom Fused Silica Glass Sight Glass Disc Processing?
Fused Silica Glass can be supplied and processed as Sight Glass Disc when the exact grade or functional material duty, stock form, dimensions, thickness, edge and surface requirements are defined by the drawing. The assigned material or application record notes: Material- and grade-dependent; qualify cutting, grinding, drilling, lapping and polishing against fracture and surface requirements. The assigned product record adds: Solid round disc, annulus, center-hole disc, multi-hole disc or stepped disc.
Which material-grade details are needed for Custom Fused Silica Glass Sight Glass Disc Processing?
For Custom Fused Silica Glass Sight Glass Disc Processing, name the exact grade or provide the temperature, pressure, chemical, optical, sealing, cleaning and wear conditions needed to select it.
Which dimensions and features control Custom Fused Silica Glass Sight Glass Disc Processing?
For Custom Fused Silica Glass Sight Glass Disc Processing, define outer dimensions, thickness, OD and ID where relevant, holes, slots, cutouts, steps, radii, edge distances, datums and critical surfaces.
How is the manufacturing route selected for Custom Fused Silica Glass Sight Glass Disc Processing?
For Custom Fused Silica Glass Sight Glass Disc Processing, the route is selected from the glass grade, supplied stock, geometry, edge and surface requirements, quantity and inspection method rather than from the product name alone.
Which quality checks matter for Custom Fused Silica Glass Sight Glass Disc Processing?
For Custom Fused Silica Glass Sight Glass Disc Processing, inspect dimensions, chips, cracks, edge condition, scratches, contamination and any optical, sealing or application-specific characteristic stated on the drawing.
What should an RFQ include for Custom Fused Silica Glass Sight Glass Disc Processing?
For Custom Fused Silica Glass Sight Glass Disc Processing, material grade, diameter, thickness, hole pattern, edge finish, flatness or wedge, surface quality, coating, operating temperature and packaging Standard, diameter, thickness, sight opening, pressure, temperature, medium, armature, gasket, thermal cycle and documentation.