Quartz Furnace Tube
Oversized Quartz Tube
Quartz Boat
Quartz Plate
Quartz Lamp Holder
Quartz Rod
Quartz Ring
Customized Quartz Products
Hot Products
0102030405
High Purity Quartz Rod / Fused Silica Rod for Semiconductor & Laboratory | China Suppliers & Factory
Cross-sectional Dimensions (mm)
Tolerances & Standard Lengths (mm)
| Cross-sectional Dimensions | Tolerances | Standard Lengths |
|---|---|---|
| 3×3 | ±0.1 | 100–1000 |
| 4×4 | ±0.1 | 100–1000 |
| 5×5 | ±0.1 | 100–1000 |
| 6×6 | ±0.15 | 100–1000 |
| 8×8 | ±0.15 | 100–1000 |
| 10×10 | ±0.2 | 100–1000 |
| 15×15 | ±0.2 | 100–500 |
| 20×20 | ±0.25 | 100–500 |
Frequently Asked Questions
❓ What do the cross-sectional dimensions refer to?
The cross-sectional dimensions (e.g., 3×3, 10×10) refer to the width and height of the bar or rod in millimeters, measured across its square cross-section.
❓ What does the tolerance value indicate?
The tolerance value (e.g., ±0.1 mm) indicates the permissible deviation from the specified cross-sectional dimension. Tighter tolerances ensure higher precision and consistency in the final product.
❓ Why do larger dimensions have higher tolerance values?
As dimensions increase, slight variations become more likely during the manufacturing process. Larger cross-sections such as 20×20 mm therefore carry a slightly wider tolerance of ±0.25 mm to account for these natural variations.
❓ Why is the standard length range shorter for larger sizes (100–500 mm)?
Larger cross-sections such as 15×15 and 20×20 mm are available in a shorter standard length range (100–500 mm) due to weight, handling, and manufacturing constraints associated with bigger material volumes.
❓ Can custom lengths outside the standard range be ordered?
Standard lengths listed represent the typical stocked range. For project-specific requirements, custom lengths may be available upon request — please contact the supplier directly to discuss your specifications.
❓ Which size offers the tightest dimensional tolerance?
The smaller sizes — 3×3, 4×4, and 5×5 mm — offer the tightest tolerance of ±0.1 mm, making them ideal for precision applications where dimensional accuracy is critical.