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High-Quality Fused Silica Quartz Plate from China Suppliers | Heat Resistant Factory Product

Discover our premium quartz sheets, crafted from high-purity silicon dioxide (SiO₂) at our state-of-the-art factory in China. Renowned for their exceptional characteristics, these quartz plates offer high temperature resistance, superior light transmittance, and a low coefficient of expansion. Our quartz sheets are customizable in size and thickness to meet your specific needs, making them ideal for a variety of applications, including optical windows, semiconductor manufacturing, and laboratory glassware.

As leading suppliers of quartz materials, we ensure that our quartz glass plates are produced by melting and refining natural or synthetic high-purity quartz, then expertly cutting and polishing them into flat panels. These key components are essential for optoelectronic devices and scientific research equipment, showcasing the quality and innovation that our factory in China delivers.

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

📐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

❓ Frequently Asked Questions

Q. What do the dimensional tolerances in this table represent?

Dimensional tolerances refer to the allowable deviation range for the length and width of each piece. For example, a tolerance of ±0.1 mm means the actual dimension may be up to 0.1 mm larger or smaller than the specified size, ensuring consistent quality in manufacturing.

Q. Why do larger sizes have wider dimensional tolerances?

As the length and width of a piece increase, minor variations in the manufacturing process can accumulate, making it more challenging to maintain extremely tight tolerances. Larger pieces such as 150×150 mm and 200×200 mm therefore have wider tolerances (up to ±0.5 mm) compared to smaller pieces like 10×10 mm (±0.1 mm).

Q. What standard thickness options are available for small sizes like 10×10 mm?

For the 10×10 mm size, three standard thickness options are available: 0.5 mm, 1.0 mm, and 2.0 mm. Smaller sizes generally support thinner options, including 0.5 mm, which is not available for larger formats.

Q. Can custom sizes or thicknesses be ordered outside of the standard specifications?

The table lists standard size and thickness combinations that are regularly available. For custom dimensions or thicknesses not listed, it is recommended to contact the manufacturer directly to discuss feasibility, lead times, and any additional tolerances that may apply.

Q. What is the thickness tolerance for pieces sized 200×200 mm?

For the 200×200 mm size, the thickness tolerance ranges from ±0.1 mm to ±0.2 mm, depending on the selected standard thickness (3.0 mm or 5.0 mm). Thicker pieces may carry a slightly wider thickness tolerance due to processing characteristics.

Q. How should I select the appropriate size and thickness for my application?

Selection should be based on your application's structural requirements, load-bearing needs, and space constraints. For precision applications, choose sizes with tighter tolerances (e.g., 10×10 mm to 30×30 mm). For larger structural uses, sizes from 100×100 mm to 200×200 mm with greater thickness options offer enhanced stability and durability.

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.