High-Purity Fused Silica · Made in China · Ships Worldwide
High-Purity Quartz Glass Manufacturer & Custom Supplier
Since 2005, FGQuartz has manufactured high-purity quartz glass and fused silica products — tubes, rods, plates, semiconductor wafer boats, crucibles and fully custom components — for semiconductor, solar photovoltaic, optical, fiber optic, laboratory and high-temperature industries worldwide. Based in Lianyungang, Jiangsu, China, we provide OEM/ODM support from single-piece prototypes to volume production, with the right material grade matched to each application.
- High Purity
- Fused Silica
- Grade matched to needs
- 1680°C
- Softening Point
- Extreme temperature
- No MOQ
- Custom Made
- Single prototype welcome
- Est. 2005
- 20+ Years’ Experience
- Ships internationally
About FGQuartz
Leading High-Purity Quartz Glass Manufacturer in China Since 2005
Established in 2005, FGQuartz is a professional high-purity quartz glass manufacturer in China. Our factory produces fused silica components under a strict in-house quality process, with material widely used in semiconductor manufacturing, optical fiber production, solar photovoltaic and industrial applications. We provide OEM/ODM custom quartz parts services for global customers.
- Custom quartz glass fabrication: CNC machining, flame working, fire polishing
- OEM/ODM support from prototype to high-volume production
- Standard items ship in 7–14 days; custom orders in 3–6 weeks
- Ships internationally to buyers in the USA, Germany, Japan, South Korea, Taiwan and beyond
Our Products
Comprehensive Quartz Glass Products & Custom Components
From standard fused quartz tubing to precision-engineered custom assemblies, our six product lines cover quartz glass tubes, rods, plates, wafer boats, crucibles and made-to-drawing custom parts — each available standard or fully bespoke to your application.
Browse the full quartz glass product range →
Technical Reference
Fused Silica Material Properties
Fused silica delivers exceptional performance across thermal, optical, mechanical and chemical parameters — making it the right material for semiconductor fabrication, UV systems and precision optics. The values below are general material references for high-purity fused silica; the exact grade is matched to your application before production.
Thermal
- Softening Point: 1680 °C
- Annealing Point: 1215 °C
- Strain Point: 1120 °C
- Max Use Temp: ~1200 °C
Optical
- UV Transmission: excellent
- Refractive Index: ~1.4585
- Wavelength Range: 185–2500 nm
- Clarity: excellent
Mechanical
- Young’s Modulus: ~72 GPa
- Tensile Strength: ~48 MPa
- Hardness (Mohs): 5.5–6.5
- Density: ~2.2 g/cm³
Chemical
- Material: fused silica (SiO&sub2;)
- Purity: high-purity, multiple grades
- Metal Impurities: low (grade matched)
- Acid Resistance: excellent (excl. HF)
Industry Applications
Quartz Glass for Semiconductor, Solar, UV & More
Our quartz glass components serve six major industries worldwide — from chip fabs and solar lines to optical benches and high-temperature furnaces.
Semiconductor Manufacturing →
Quartz diffusion tubes, wafer boats, CVD reactor components and process chambers for contamination-free silicon wafer processing — matched to major tube furnace platforms and wafer sizes from 100 mm to 300 mm.
Solar Photovoltaic →
High-purity quartz crucibles for Czochralski silicon crystal growth, diffusion tubes for solar cell emitter formation, and wafer boats for the full solar silicon production chain in a range of sizes.
Optical Quartz Glass →
Fused silica optical windows, lenses, prisms, UV cuvettes and lamp envelopes covering deep-UV to near-infrared. Optical-grade and UV-grade fused silica for lasers, spectroscopy and UV lithography.
Fiber Optic Quartz →
Ultra-high-purity fused silica substrate tubes and starting rods for MCVD, OVD and VAD optical fiber preform manufacturing. Low-OH and high-OH grades for telecom and specialty fibers.
Laboratory Quartz →
Research-grade quartz labware — crucibles, beakers, cuvettes, ICP plasma torches and furnace hardware — for analytical chemistry, materials science and high-temperature research, with no MOQ.
High-Temperature Industry →
Fused silica infrared heater envelopes, furnace process tubes, thermocouple protection tubes and observation windows for industrial heating, chemical processing and thermal analysis.
Why FGQuartz Is the Right Quartz Glass Supplier for Your Needs
As a dedicated quartz glass manufacturer with over two decades of experience, FGQuartz understands that material purity and dimensional accuracy are non-negotiable in high-technology applications. Whether you need fused quartz tubes for a semiconductor diffusion furnace, quartz crucibles for solar silicon crystal growth, or custom quartz glass components for an OEM instrument, our production team has the expertise to deliver.
Our high-purity quartz glass uses fused silica with low metallic impurities, with the exact grade matched to your application and verified through our strict in-house quality process — rather than locked to a fixed code that risks mismatching what you actually need. This protects against contamination in wafer processing, supports UV transmission for germicidal applications, and provides the chemical inertness required in pharmaceutical and laboratory environments.
FGQuartz exports fused silica products to customers in the United States, Germany, Japan, South Korea, Taiwan, India and beyond. Our multilingual sales team provides fast RFQ responses, clear technical documentation and competitive pricing for both small research orders and high-volume industrial supply contracts — with no MOQ on custom parts.
Ready to Source High-Purity Quartz Glass?
Join companies worldwide that trust FGQuartz for precision quartz glass components. Send your drawing, sample or sizes — we usually reply with a quote within one business day.