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China Suppliers of Fused Silica Quartz Plates - High Temperature Resistant Quartz Glass Factory

Introducing our high-quality quartz sheets, crafted from premium high-purity quartz material. These quartz sheets offer exceptional properties, including high temperature resistance, excellent light transmittance, and a low coefficient of expansion, making them an ideal choice for various applications. Customizable in size and thickness, our quartz sheets are extensively utilized in optical windows, semiconductor manufacturing processes, laboratory glassware, and more. As key components in optoelectronic and scientific research equipment, these products are sourced from trusted China suppliers and manufactured in our state-of-the-art factory. Enhance your projects with our reliable quartz solutions today!

Product Description

Material & Quality

Made from 99.99% high-purity fused silica, our large-diameter quartz tube is free of impurities, ensuring minimal thermal expansion and maximum resistance to thermal shock (can withstand rapid temperature changes from -20℃ to 1200℃). It is non-toxic, non-porous, and resistant to most acids (except hydrofluoric acid) and alkaline solutions, making it suitable for corrosive chemical processing.

Core Advantages

Superior thermal stability: Operates continuously at 1100℃, short-term use up to 1450℃
Excellent mechanical strength: High compressive strength and impact resistance, cracking during installation and use
Customization support: Cut-to-length, flanged ends, and drilled holes available per customer drawings
Long service life: Resists aging and oxidation even under prolonged high-temperature exposure

Key Application Fields of Large-Diameter Quartz Tubes

Large-diameter quartz tubes are essential components in various high-end industries, thanks to their excellent thermal stability, chemical inertness and high light transmittance.

Semiconductor Industry

They are widely used in diffusion furnaces, oxidation furnaces and ion implantation equipment for wafer processing. The high purity and corrosion resistance of quartz tubes can ensure no pollution to semiconductor materials during high-temperature processes.
Solar Energy Sector

Applied to the production line of photovoltaic cells and silicon wafers, they serve as the core components of high-temperature sintering and coating equipment, helping to improve the conversion efficiency of solar cells.
High-Temperature Heat Treatment & Metallurgy

Used as furnace linings and heating chambers in annealing furnaces, quenching furnaces and sintering furnaces, they can withstand continuous high-temperature operation up to 1100℃ and resist thermal shock.
Laboratory & Scientific Research

Employed in high-temperature chemical reactors, vacuum tubes and chemical vapor deposition (CVD) systems, suitable for harsh experimental environments such as strong acid corrosion and high-temperature pyrolysis.
Optical Fiber & Optoelectronics Industry

Serve as protective sleeves and drawing molds in optical fiber preform production, ensuring the purity and uniformity of optical fiber materials during the high-temperature drawing process.
Environmental Protection & Waste Treatment

Used in high-temperature waste gas incinerators and hazardous waste treatment equipment, taking advantage of their high-temperature resistance and chemical stability to decompose harmful substances.

Product Specifications

Product Details

📐 Standard Dimensions & Tolerance Specifications

Length × Width (mm)	Dimensional Tolerances (mm)	Standard Thickness (mm)	Thickness Tolerances (mm)
10 × 10	±0.1	0.5 / 1.0 / 2.0	±0.05 ~ ±0.1
20 × 20	±0.1	0.5 / 1.0 / 2.0 / 3.0	±0.05 ~ ±0.1
30 × 30	±0.1	1.0 / 2.0 / 3.0	±0.05 ~ ±0.1
40 × 40	±0.1 ~ ±0.2	1.0 / 2.0 / 3.0 / 4.0	±0.08 ~ ±0.1
50 × 50	±0.1 ~ ±0.2	1.0 / 2.0 / 3.0 / 5.0	±0.08 ~ ±0.1
60 × 60	±0.2	2.0 / 3.0 / 5.0	±0.1
80 × 80	±0.2	2.0 / 3.0 / 5.0	±0.1
100 × 100	±0.2 ~ ±0.3	2.0 / 3.0 / 5.0	±0.1
150 × 150	±0.3	3.0 / 5.0	±0.1 ~ ±0.2
200 × 200	±0.3 ~ ±0.5	3.0 / 5.0	±0.1 ~ ±0.2

✅ Sizes range from 10×10 to 200×200 mm

🔬 Thickness as low as 0.5 mm available

📏 Tight tolerances down to ±0.05 mm

⚙️ Multiple thickness options per size

❓ Frequently Asked Questions

💬 What is the smallest available size and thickness in this specification table?

The smallest available size is 10×10 mm, with a minimum standard thickness of 0.5 mm. This size supports thicknesses of 0.5 mm, 1.0 mm, and 2.0 mm, with a dimensional tolerance of ±0.1 mm.

💬 How do dimensional tolerances change as the size increases?

Dimensional tolerances generally increase with larger sizes. Smaller pieces (10×10 to 30×30 mm) maintain a tight tolerance of ±0.1 mm, while larger pieces (150×150 to 200×200 mm) have tolerances of ±0.3 to ±0.5 mm, reflecting the increased difficulty of precision machining at larger scales.

💬 Which sizes support the widest range of standard thickness options?

The 20×20 mm and 40×40 mm sizes offer the widest range of standard thickness options, each providing four choices: 0.5/1.0/2.0/3.0 mm and 1.0/2.0/3.0/4.0 mm respectively, giving more flexibility for different application requirements.

💬 What thickness tolerance should I expect for large-format pieces like 150×150 or 200×200 mm?

For large-format pieces such as 150×150 mm and 200×200 mm, the thickness tolerance is ±0.1 ~ ±0.2 mm. These sizes are only available in 3.0 mm and 5.0 mm standard thicknesses, which helps maintain structural integrity and dimensional consistency.

💬 Can custom sizes or thicknesses outside of these specifications be ordered?

The table above lists standard sizes and thicknesses. For custom dimensions or special tolerances beyond the listed specifications, it is recommended to contact the manufacturer or supplier directly to discuss feasibility, lead times, and any additional costs that may apply.

💬 Why does the 5.0 mm thickness only appear for sizes 50×50 mm and above?

The 5.0 mm thickness option becomes available starting from the 50×50 mm size because thicker pieces require a sufficient surface area to maintain structural stability, ensure even material distribution, and meet processing requirements. Smaller sizes typically do not require or support such thickness levels in standard production.

Packaging and Shipping

Why Choose Southeast Quartz?

Southeast Quartz relies on the superior high-quality quartz ore resources in Donghai County, deeply engages in the deep processing of quartz glass, and has become a core supplier to global customers. All products undergo multiple tests such as helium mass spectrometry leak detection, pressure resistance test, and purity test before leaving the factory to ensure stable performance, no impurities, and no leakage.