Product catalog
Quartz Glass Products: Tubes, Rods, Plates, Wafer Boats, Crucibles, Tanks and Custom Parts
FGQuartz is a quartz glass manufacturer and supplier. We make seven standard quartz glass products (tubes, rods, plates, wafer boats, crucibles, tanks and inline heaters) and custom fused silica parts to your drawing, sample or sketch. All are fused silica with SiO₂ ≥ 99.99%, made under an ISO 9001 system. No minimum order, and quotes typically within 24 business hours.
Standard Quartz Glass Products
Open a product page for sizes, options and drawings. Anything outside the standard lines is made to order.
Furnace, diffusion, CVD and reaction tubes, plain or fully fabricated with flanges, ports and bends.
Solid rods for supports, fiber preform starting rods, stirring and fixtures, ground or machined to drawing.
Process plates, discs, viewports and JGS optical windows with controlled flatness and polish.
Wafer boats and carriers for diffusion, oxidation and LPCVD, with CNC-cut slots and low particle generation.
CZ, MCZ and DS crystal-growth crucibles and laboratory crucibles in custom capacities.
Welded baths and tanks for wet benches and chemical processing, with flanges, drains and covers.
Flow-through chambers that heat DI water and high-purity chemicals with no metal on the wetted path.
Parts built to your drawing, sample or sketch: labware, assemblies, optics and copies of old parts.
Quartz Glass Products Compared: Size Range, Custom Options and Uses
Ranges are typical, not limits. By industry: semiconductor, solar, optics, laboratory, fiber optic and high-temperature.
| Product | Typical range | Common custom options | Main uses |
|---|---|---|---|
| Tubes | OD 5–1000 mm (0.2–39.4 in) | Flanges, side ports, bends, sealed ends, multi-section welds | Diffusion, CVD, furnaces, fiber-optic substrates |
| Rods | OD 3–300 mm (0.12–11.8 in) | Centerless grinding, holes, grooves, threads, polished ends | Preform work, supports, fixtures |
| Plates and windows | 0.5–50 mm thick, up to 1200 × 1200 mm (47 × 47 in) | Drilled holes, slots, steps, optical polish, JGS grade | Viewports, optics, process plates |
| Wafer boats | 2–12 in wafers, 25–150+ slots | Slot pitch, multi-piece builds, solar cell formats | Semiconductor and solar diffusion, oxidation, LPCVD |
| Crucibles | 10 ml laboratory to 32 in CZ | Capacity, lids, spouts, heavy wall | Crystal growth, calcination, laboratory analysis |
| Tanks | 50–1500 mm+ (2–59 in+), 1–200+ liters | Ports, drains, covers, overflow, multi-chamber | Wet benches, chemical baths |
| Inline heaters | Sized to flow rate and chamber | Chamber shape, ports, flange interfaces | DI water and high-purity chemical heating |
| Custom parts | Any shape that can be formed or machined | Build to print from CAD, sample or sketch | Labware, optics, OEM assemblies |
Custom Quartz Glass Fabrication Beyond the Catalogue
FGQuartz builds custom fused silica parts from DXF, STEP, IGES or PDF drawings, from a sample, or from a sketch. Hot work (flame forming, bending, sealing, welding) and cold work (CNC diamond machining, drilling, grinding, polishing) happen in one plant, then the part is annealed and inspected.
Also made to order: ICP torches and torch tubes, gas manifolds and injectors, beakers, flasks, test and combustion tubes, flow cells, cuvettes, and optical windows, lenses and prisms. There is no minimum order, so one prototype is a normal request.
Quartz Glass vs Borosilicate and Alumina
Quartz glass, fused quartz and fused silica all describe amorphous silicon dioxide. Fused quartz is melted from natural quartz crystal; fused silica is synthetic and generally purer and more uniform optically. Typical handbook values below; exact figures depend on grade. Full data: technical specifications, quartz vs borosilicate and What is quartz glass?
| Property | Fused quartz | Borosilicate 3.3 | 99.7% alumina |
|---|---|---|---|
| Continuous use | ≈ 1200°C (2192°F) | ≈ 450–500°C (842–932°F) | ≈ 1600°C (2912°F) or higher |
| Thermal expansion | ≈ 5.5 × 10⁻⁷ /°C | ≈ 3.3 × 10⁻⁶ /°C | ≈ 8 × 10⁻⁶ /°C |
| Thermal shock | Excellent | Moderate | Limited; heat slowly |
| Transparency | UV to near IR, grade dependent | Visible; cuts off deep UV | Opaque |
| Main limits | HF, hot phosphoric acid, hot alkali | Low maximum temperature | No visual access; shock risk |
How to Choose and Order Quartz Glass Parts
- Define the process: temperature range, chemicals and any optical need.
- Identify the function: containment, wafer support, optical access or structural support.
- Pick the product family from the comparison table above.
- Specify critical dimensions and features.
- Standard or custom? If catalogue sizes do not fit, send a drawing or sample for custom fabrication.
Knowing the application lets us give better material and process advice.
What to send for a quote
- A drawing (DXF, STEP, IGES, PDF) or a dimensioned sketch
- Product type, critical dimensions and quantity
- Application, operating temperature and chemicals
- Surface finish or optical grade
- Special features such as ports, slots, flanges, bends or threads
No full drawing? A photo of an existing part with key dimensions and its use is often enough for a first review. Quotes typically come back within 24 business hours; simpler parts take 7–14 days and complex assemblies 3–6 weeks.
Frequently Asked Questions About Quartz Glass Products
What quartz glass products does FGQuartz make?
FGQuartz makes seven standard quartz glass products (tubes, rods, plates, wafer boats, crucibles, tanks, and inline heaters) plus custom fused silica parts built to your drawing, sample, or sketch. All are fused silica with SiO₂ ≥ 99.99%, made under an ISO 9001 system.
Are your products standard sizes or made to order?
Both. Each product line has a page with typical ranges, but ranges are typical, not limits, and anything outside the standard lines is made to order from a DXF, STEP, IGES, or PDF drawing, a sample, or a sketch. There is no minimum order quantity, so a single prototype is a normal request.
Are quartz glass, fused quartz, and fused silica the same material?
All three describe amorphous silicon dioxide. Fused quartz is melted from natural quartz crystal; fused silica is synthetic and generally purer and more uniform optically. Process tubes, boats, and crucibles typically use fused quartz, and optical grades such as JGS1, JGS2, and JGS3 are chosen by working wavelength.
How does quartz glass compare with borosilicate glass and alumina?
Fused quartz runs to about 1200°C (2192°F) continuous, well above borosilicate, and has far lower thermal expansion, so it handles thermal shock better and transmits UV that borosilicate cuts off. Alumina ceramic tolerates even higher temperatures but is opaque and more prone to thermal shock.
Which chemicals and conditions are wrong for quartz glass?
Quartz is attacked by hydrofluoric acid (HF), hot concentrated phosphoric acid, and hot strong alkalis such as KOH or NaOH. It is also brittle, so continuous service above about 1200°C or heavy impact are poor fits. It resists hot HCl, HNO₃, H₂SO₄, aqua regia, and organic solvents.
What should I send to get a quote?
A drawing (DXF, STEP, IGES, or PDF) or a dimensioned sketch, the product type, critical dimensions and quantity, the application, operating temperature and chemicals, the surface finish or optical grade, and any special features such as ports, slots, flanges, bends, or threads. A photo of an existing part with key dimensions and its use is often enough for a first review.
What are the minimum order quantity and lead times?
There is no minimum order quantity. Quotes typically come back within 24 business hours; simpler parts take 7–14 days and complex assemblies 3–6 weeks, and the quote confirms the schedule.
Are you a manufacturer, and do you ship internationally?
FGQuartz is a manufacturer: melting, drawing, diamond machining, flame work, polishing, and annealing all happen in one 15,000 m² ISO 9001 plant in Lianyungang, China. We supply customers in 40+ countries with export packing and documentation.
Request a Quote
Tell us what you need. None of this is mandatory:
- What the part is for, and a drawing, sketch, photo or old part
- Operating temperature, chemicals and gases
- Size limits, finish or optical grade
- Quantity: one prototype or a production run
Email: info@fgquartz.com · Reply: within 24 business hours