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High-Quality Fused Silica Quartz Plate Supplier | Heat Resistant Quartz Glass Factory in China
Standard Dimensions & Tolerances 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 |
Frequently Asked Questions
Q
What does "dimensional tolerance" mean in this specification table?
Dimensional tolerance refers to the allowable deviation from the specified length and width measurements. For example, a tolerance of ±0.1 mm means the actual dimension can be up to 0.1 mm larger or smaller than the stated size, ensuring consistent fit and performance across applications.
Q
Why do larger sizes have wider dimensional tolerances?
As the length and width increase, achieving the same level of precision becomes more challenging during manufacturing. Larger pieces are subject to greater material variation, thermal expansion, and processing factors, which naturally result in slightly wider allowable tolerances such as ±0.3 ~ ±0.5 mm for 200×200 mm sizes.
Q
Are custom sizes or thicknesses available beyond the listed specifications?
The table lists standard sizes and thicknesses available for regular orders. For special project requirements, custom dimensions and thickness options may be available upon request. It is recommended to contact the supplier directly to discuss feasibility, lead times, and any applicable tolerances for non-standard specifications.
Q
What is the thinnest available thickness and which sizes support it?
The thinnest standard thickness available is 0.5 mm, which is supported by the smaller sizes of 10×10 mm and 20×20 mm. Thinner pieces are more suitable for precision applications where minimal material footprint is required, and they carry a tighter thickness tolerance of ±0.05 ~ ±0.1 mm.
Q
How do thickness tolerances compare between small and large sizes?
Smaller sizes such as 10×10 mm to 50×50 mm typically have tighter thickness tolerances in the range of ±0.05 ~ ±0.1 mm. As dimensions increase to 150×150 mm and 200×200 mm, the thickness tolerances widen slightly to ±0.1 ~ ±0.2 mm, reflecting the increased complexity of maintaining uniform thickness across larger surface areas.
Q
Which size offers the most thickness options for design flexibility?
The 40×40 mm size offers the widest range of standard thickness options — 1.0 mm, 2.0 mm, 3.0 mm, and 4.0 mm — making it a versatile choice for applications that require multiple material depth configurations within the same footprint. The 20×20 mm size also provides four thickness options: 0.5 mm, 1.0 mm, 2.0 mm, and 3.0 mm.

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