
1200°C High Temp Resistant

High Transmittance

Acid/Alkali Resistant

Complete Specifications
Our Tube Furnace Quartz Semi-Circular Boat is expertly manufactured from ultra-high purity 99.99% (4N grade) fused silica glass. Its unique semi-circular design is optimized to fit snugly against the lower inner wall of a circular tube furnace, maximizing space utilization and ensuring stable placement. This stability is particularly beneficial when using a furnace hook to insert or withdraw samples, minimizing shaking or tilting.This boat is perfectly suited for holding powder, granular, or small bulk samples. Its high transparency allows for easy observation of the sample during processing. The semi-open shape facilitates the smooth flow of protective or reactive gases over the sample surface, promoting a uniform atmosphere environment and effective gas-solid reactions.
- Product Name : Quartz Semi-Circular Boat for Tube Furnaces
- Material : 99.99 % Purity Quartz
- Work Temperature :~1200℃
- Strain Point : ~1120℃
- Soften point : ~1730℃

Length(mm) | Width(mm) | Height(mm) | Length(in) | Width(in) | Height(in) |
---|---|---|---|---|---|
50mm | 10mm | 5mm | 1.97″ | 0.39″ | 0.20” |
50mm | 15mm | 7.5mm | 1.97″ | 0.59″ | 0.30” |
50mm | 20mm | 10mm | 1.97″ | 0.79″ | 0.39” |
50mm | 25mm | 12.5mm | 1.97″ | 0.98″ | 0.49” |
50mm | 30mm | 15mm | 1.97″ | 1.18″ | 0.59” |
50mm | 40mm | 20mm | 1.97″ | 1.57″ | 0.79” |
50mm | 50mm | 25mm | 1.97″ | 1.97″ | 0.98” |
60mm | 30mm | 15mm | 2.36″ | 1.18″ | 0.59” |
80mm | 30mm | 15mm | 3.15″ | 1.18″ | 0.59” |
100mm | 10mm | 5mm | 3.94″ | 0.39″ | 0.20” |
100mm | 15mm | 7.5mm | 3.94″ | 0.59″ | 0.30” |
100mm | 20mm | 10mm | 3.94″ | 0.79″ | 0.39” |
100mm | 25mm | 12.5mm | 3.94″ | 0.98″ | 0.49” |
100mm | 30mm | 15mm | 3.94″ | 1.18″ | 0.59” |
100mm | 35mm | 17.5mm | 3.94″ | 1.38″ | 0.69” |
100mm | 40mm | 20mm | 3.94″ | 1.57″ | 0.79” |
100mm | 45mm | 22.5mm | 3.94″ | 1.77″ | 0.89” |
100mm | 50mm | 25mm | 3.94″ | 1.97″ | 0.98” |
100mm | 60mm | 30mm | 3.94″ | 2.36″ | 1.18” |
100mm | 70mm | 35mm | 3.94″ | 2.76″ | 1.38” |
100mm | 80mm | 40mm | 3.94″ | 3.15″ | 1.57” |
150mm | 40mm | 20mm | 5.91″ | 1.57″ | 0.79” |
150mm | 50mm | 25mm | 5.91″ | 1.97″ | 0.98” |
150mm | 60mm | 30mm | 5.91″ | 2.36″ | 1.18” |
150mm | 70mm | 35mm | 5.91″ | 2.76″ | 1.38” |
150mm | 80mm | 40mm | 5.91″ | 3.15″ | 1.57” |
200mm | 20mm | 10mm | 7.87″ | 0.79″ | 0.39” |
200mm | 25mm | 12.5mm | 7.87″ | 0.98″ | 0.49” |
200mm | 30mm | 15mm | 7.87″ | 1.18″ | 0.59” |
200mm | 40mm | 20mm | 7.87″ | 1.57″ | 0.79” |
200mm | 50mm | 25mm | 7.87″ | 1.97″ | 0.98” |
- High Temperature Resistance: Suitable for use in tube furnaces operating up to 1200℃.
- High Purity & Chemical Inertness: Made from ultra-high purity 99.99% (4N grade) fused silica, free from impurities, ensuring no sample contamination.
- Excellent Thermal Stability: Possesses a low thermal expansion coefficient, providing superior thermal shock resistance and preventing cracking during rapid heating and cooling cycles.
- Ease of Operation: The semi-circular shape provides stable placement in the furnace tube, facilitating easy sample loading and unloading and ensuring stable pushing and pulling.
For applications requiring a closed environment, we offer a specially designed anti-slip cover that can be placed over the semi-circular boat to prevent sample volatilization. Furthermore, for handling multiple samples simultaneously within one boat, we provide personalized customization options, including the design of spaced boats and other tailored solutions to meet your specific needs. Rely on our high purity quartz semi-circular boats for stable, efficient, and contamination-free sample processing in your tube furnace.