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 | Silicon Nitride Riser Tube ，High Temperature Resistant Ceramic Tube ，Aluminum Casting Silicon Nitride Tube | ||
Our premium silicon nitride riser tubes are engineered for superior performance in aluminum casting applications. Manufactured through advanced isostatic pressing and gas pressure sintering technology, these tubes deliver exceptional density, unmatched high-temperature mechanical strength, and extended operational lifespan—outperforming conventional alternatives by over 10 times.
Extended Service Life: 10x longer lifespan than traditional riser tubes
Enhanced Casting Quality: Significantly reduces air leakage and slag formation
Reduced Operational Costs: Minimizes downtime and replacement frequency
Consistent Performance: Maintains dimensional stability under extreme thermal cycling
| Property | Unit | Value Range |
|---|---|---|
| Density | g/cm³ | 3.20–3.26 |
| Apparent Porosity | % | 0–0.1 |
| Elastic Modulus | GPa | 300–320 |
| Compressive Strength | MPa | >1500 |
| Vickers Hardness (HV0.5) | GPa | 15–16 |
| Fracture Toughness | MPa·m¹/² | >0.8 |
| Flexural Strength | MPa | >700 |
| Poisson's Ratio | – | 0.25 |
| Thermal Expansion Coefficient | ×10⁻⁶/°C | 3.1–3.3 |
| Weibull Modulus | – | 11–13 |
| Thermal Conductivity | W/(m·K) | 20–25 |
| Electrical Resistivity | Ω·cm | 10¹⁴ |
| Size Parameter | Specification |
|---|---|
| Maximum Outer Diameter | 430 mm |
| Wall Thickness | 10–15 mm |
| Maximum Length | 1350 mm |
Custom dimensions available upon request for specialized applications
Aluminum automotive wheels
Engine blocks and cylinder heads
Structural automotive components
Aerospace turbine components
High-performance heat sinks
Defense and aviation parts
Aluminum slabs and billets
Rods and bar stock
Specialty alloy profiles
Withstands rapid temperature fluctuations without cracking or degradation, ensuring reliable performance through multiple casting cycles.
Maintains structural integrity at elevated temperatures with minimal dimensional change (CTE: 3.1–3.3 ×10⁻⁶/°C).
Inert to molten aluminum with excellent non-wetting properties, preventing metal adhesion and ensuring clean separation.
Durable construction minimizes wear and tear, reducing replacement frequency and associated operational downtime.
Compared to traditional ceramic and metallic riser tubes, our silicon nitride solutions offer:
10× longer operational lifespan
50% reduction in maintenance requirements
30% improvement in casting quality
25% decrease in energy consumption through improved thermal efficiency
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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