Hunan Yuanhong New Materials Co.,Ltd
| Surface Finish | As-fired / Glazed / Polished |
| Delivery Time | 30days |
| Alumina Purity | 95% / 99% / 99.5% / 99.8% |
| Supply Ability | 10000pcs per month |
| Shape | Boat / Rectangular with rounded ends |
| Dimensions (L×W×H) | Customized per drawing |
| Packaging Details | By carton and wooden case,Pallets |
| Density | ≥3.6 g/cm³ – ≥3.9 g/cm³ |
| Payment Terms | L/C,T/T,Western Union |
| Capacity | 10 ml – 5000 ml (customizable) |
| Max Working Temperature | 1600 °C – 1800 °C |
| Application | Sintering / Melting / Heat treatment / Lab analysis |
| Material | High-purity Alumina (Al2O3) |
| Acid & Alkali Resistance | Excellent |
| Certification | ISO9001,CE,Rohs |
| Model Number | crucible |
| Place of Origin | CHINA |
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Product Specification
| Surface Finish | As-fired / Glazed / Polished | Delivery Time | 30days |
| Alumina Purity | 95% / 99% / 99.5% / 99.8% | Supply Ability | 10000pcs per month |
| Shape | Boat / Rectangular with rounded ends | Dimensions (L×W×H) | Customized per drawing |
| Packaging Details | By carton and wooden case,Pallets | Density | ≥3.6 g/cm³ – ≥3.9 g/cm³ |
| Payment Terms | L/C,T/T,Western Union | Capacity | 10 ml – 5000 ml (customizable) |
| Max Working Temperature | 1600 °C – 1800 °C | Application | Sintering / Melting / Heat treatment / Lab analysis |
| Material | High-purity Alumina (Al2O3) | Acid & Alkali Resistance | Excellent |
| Certification | ISO9001,CE,Rohs | Model Number | crucible |
| Place of Origin | CHINA |
Square Rectangular Corundum Alumina Boat Tray Melting Crucible
Ultra-High Temperature Resistance
Withstands continuous operation up to 1600°C (99%) and 1800°C (99.7%), with short-term exposure to 1850°C. Stable in oxidizing, reducing, and vacuum atmospheres.
High Purity & Chemical Inertness
Al₂O₃ content up to 99.7%, Fe₂O₃ < 0.01%. Does not react with most acids, alkalis, and molten salts. Eliminates sample contamination for accurate analytical results.
Tube-Furnace Optimized Design
Elongated rectangular shape with low wall height fits standard tube furnace diameters perfectly. Open-top design promotes uniform gas flow and even heating, eliminating hot spots.
Excellent Thermal Shock Resistance
Low thermal expansion coefficient (7.9~8.2 × 10⁻⁶/°C) and high thermal conductivity enable rapid heating and cooling cycles without cracking, reducing cycle time and boosting throughput.
Zero Porosity & Impervious
Fully dense structure (density > 3.8 g/cm³) with zero open porosity. Prevents liquid and gas penetration, ensures easy cleaning and residue-free sample transfer.
Customizable Dimensions
Wide range of standard sizes from 50×20×10mm to 300×40×30mm. Custom lengths, widths, wall thicknesses, with/without lids, and perforated versions available to match specific furnace and process requirements.
Application
Specifications
| Property | Unit | 99% Al₂O₃ | 99.5% Al₂O₃ | 99.7% Al₂O₃ |
| Al₂O₃ Content | % | ≥ 99 | ≥ 99.5 | ≥ 99.7 |
| Fe₂O₃ Content | % | ≤ 0.05 | ≤ 0.02 | ≤ 0.01 |
| Bulk Density | g/cm³ | ≥ 3.80 | ≥ 3.88 | ≥ 3.90 |
| Open Porosity | % | 0 | 0 | 0 |
| Max Continuous Temp | °C | 1600 | 1700 | 1800 |
| Max Short-Term Temp | °C | 1700 | 1780 | 1850 |
| Thermal Expansion Coefficient | ×10⁻⁶/°C | 7.9 | 8.0 | 8.2 |
| Thermal Conductivity | W/(m·K) | 25 | 27 | 30 |
| Vickers Hardness | HV | 1600 | 1650 | 1700 |
| Color | — | White | Ivory White | Ivory White |
Feature Advantage
Company Details
Business Type:
Manufacturer
Year Established:
2016
Total Annual:
10000000-30000000
Employee Number:
80~100
Ecer Certification：
Verified Supplier
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