Shaanxi KeGu New Material Technology Co., Ltd
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability | 2,000 pcs/month |
| Packaging Details | Strong wooden box for Global shipping |
| Material | Silicon Nitride |
| Composition:SiC | ＞85% |
| Color | Black |
| Density | 3.20-3.26g/cm3 |
| Max. Service Temp | 1450℃ |
| Flexural Strength | 250MPa |
| Sample | Customizable |
| Chemical Stability | High |
| Apparent Porosity | 0-0.1% |
| Elastic Modulus | 300-320GPa |
| Compression Strength | >1500MPa |
| Vickers Hardness(HV0.5) | 15-16GPa |
| Thermal Conductivity | 20-25W/(m.k) |
| Specific Resistivity | 10^14Ω·cm |
| Brand Name | KEGU |
| Place of Origin | China |
| Model Number | Customizable |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram | Supply Ability | 2,000 pcs/month |
| Packaging Details | Strong wooden box for Global shipping | Material | Silicon Nitride |
| Composition:SiC | ＞85% | Color | Black |
| Density | 3.20-3.26g/cm3 | Max. Service Temp | 1450℃ |
| Flexural Strength | 250MPa | Sample | Customizable |
| Chemical Stability | High | Apparent Porosity | 0-0.1% |
| Elastic Modulus | 300-320GPa | Compression Strength | >1500MPa |
| Vickers Hardness(HV0.5) | 15-16GPa | Thermal Conductivity | 20-25W/(m.k) |
| Specific Resistivity | 10^14Ω·cm | Brand Name | KEGU |
| Place of Origin | China | Model Number | Customizable |
| High Light | Si3N4 Pouring Spoon ，Silicon Nitride Pouring Spoon ，Aluminum Industry Silicon Nitride Crucible | ||
Product Description
Our high-performance silicon nitride ceramic materials are engineered specifically for the aluminum industry, delivering superior thermal and mechanical properties compared to traditional alternatives. This innovation enables groundbreaking products like the L-shaped high thermal conductivity submerged heating appliance, setting a new standard for efficiency and durability in aluminum processing equipment.
We utilize a pioneering slip-casting formation process to manufacture silicon nitride pouring spoons and crucibles. This method maximizes the inherent advantages of silicon nitride, offering:
Ultimate Thermal Shock Resistance (ΔT 400–500°C)
Superior Non-Stick Aluminum Properties
Excellent Corrosion & Wear Resistance
These products represent the definitive solution for aluminum melt handling, significantly extending service life compared to spoons and crucibles made from other ceramic materials.
Silicon Nitride Ceramics: Technical Property Comparison
| Category | Property | Unit | 99% Al₂O₃ | S-SiC | ZrO₂ | Si₃N₄ |
| Physical | Density | g/cm³ | 3.9 | 3.1 | 6.0 | 3.2 |
|
| Water Absorption | % | 0 | 0.1 | 0 | 0.1 |
|
| Sintering Temperature | °C | 1700 | 2200 | 1500 | 1800 |
| Mechanical | Hardness (HV) | HV | 1700 | 2200 | 1300 | 1400 |
|
| Flexural Strength | MPa (kgf/mm²) | ~343 (3500) | ~392 (4000) | ~882 (9000) | ~686 (7000) |
|
| Compressive Strength | MPa (kgf/mm²) | ~2942 (30000) | ~1961 (20000) | ~1961 (20000) | ~2255 (23000) |
| Thermal | Max Working Temperature | °C | 1500 | 1600 | 1300 | 1400 |
|
| Thermal Expansion Coefficient (0-1000°C) | 10⁻⁶/°C | 8.0 | 4.1 (0-500°C) | 9.5 | 2.0 (0-500°C) |
|
|
|
|
| 5.2 (500-1000°C) |
| 4.0 (500-1000°C) |
|
| Thermal Shock Resistance | ΔT (°C) | 200 | 250 | 300 | 400-500 |
|
| Thermal Conductivity (25°C) | W/m·K | 31 | 100 | 3 | 25 |
|
| Thermal Conductivity (300°C) | W/m·K | 16 | 100 | 3 | 25 |
| Electrical | Volume Resistivity (20°C) | Ω·cm | >10¹² | 10⁶–10⁸ | >10¹⁰ | >10¹¹ |
|
| Volume Resistivity (100°C) | Ω·cm | 10¹²–10¹³ | – | – | >10¹¹ |
|
| Volume Resistivity (300°C) | Ω·cm | >10¹² | – | – | >10¹¹ |
|
| Dielectric Strength | kV/mm | 18 | Semiconductor | 9 | 17.7 |
|
| Dielectric Constant (1 MHz) | ε | 10 | – | 29 | 7 |
|
| Dielectric Loss Tangent | tan δ | 0.4 × 10⁻³ | – | – | – |
Why Choose Our Silicon Nitride Pouring Spoons & Crucibles?
Longer Service Life: Exceptional durability reduces replacement frequency and downtime.
Improved Efficiency: Excellent non-wetting properties minimize aluminum adhesion and material loss.
Enhanced Reliability: Unmatched thermal shock resistance prevents cracking during rapid temperature changes.
High-Temperature Stability: Maintains structural integrity in demanding aluminum processing environments.
Company Details
Business Type:
Manufacturer
Year Established:
2017
Total Annual:
800-850
Employee Number:
60~70
Ecer Certification：
Verified Supplier
Founded in 2017, Kegu is a leading advanced materials developer based in China’s Xixian New District, Qinhan New City—strategically positioned near major transport links including the Xianyang East Expressway. With a registered capital of 35.5 million RMB (approx. 5 million USD), we o... Founded in 2017, Kegu is a leading advanced materials developer based in China’s Xixian New District, Qinhan New City—strategically positioned near major transport links including the Xianyang East Expressway. With a registered capital of 35.5 million RMB (approx. 5 million USD), we o...
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