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Product Description
 | Silicon Nitride Ceramic Tube:physical indicators: bulk density reaches 3.25 g/cm³, Rockwell hardness ≥75 HRA,elastic modulus 300~320 GPa, fracture toughness up to 6~9 MPa·m¹ᐟ², thermal conductivity 15~20 W/(m·K), low thermal expansion coefficient 3.1~3.3×10⁻⁶/℃. |
Silicon Nitride Tube Advantages: It has higher flexural strength and antioxidant properties than other products. Maximum operating temperature 1800℃. |  |
 | GPS Ceramic Tube
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Application of silicon nitride tube 1.Smelting industry：Temperature monitoring for aluminum, zinc, copper melting furnaces, holding furnaces 2.Metallurgical heat treatment：High-temperature furnace thermocouple protection casing |  |
项目 Item | 气压烧结 gas pressure sintering | 热压烧结 hot pressing sintering | 反应烧结 reactive sintering | 无压烧结 pressureless sintering |
洛氏硬度 Rockwell hardness (HRA) | ≥75 | - | >80 | 91-92 |
体积密度 Volume density(g/cm3) | 3.25 | >3.25 | 1.8-2.7 | 3.0-3.2 |
介电常数 Dielectric constant (εr20℃,1MHZ） | - | 8.0(1MHz) | - | - |
电阻率 electric volume resistivity (Ω·cm) | 1014 | 108 | - | - |
断裂韧性 breaking tenacity (MPa m1/2) | 6-9 | 6-8 | 2.8 | 5-6 |
弹性模量 Elasticity modulus(GPa) | 300-320 | 300-320 | 160-200 | 290-320 |
热膨胀系数 thermal expansivity (m/K*10-6/℃) | 3.1-3.3 | 3.4 | 2.53 | 600 |
热导率 thermal conductivity W/(m·K) | 15-20 | 34 | 15 | - |
韦伯模数 weibull modulus (m) | 12-15 | 15-20 | 15-20 | 10-18 |
Company Profile
Packaging & Shipping
Packing Details | We will packing by professional export packing,safety against breakage, finally into the wooden cases/ carton/pallet or customized package. We have ERP authentication. |
Delivery Details | We can deliver by SEA,air,rail transportation,the China-Europe Railway Express etc. TNT, DHL,UPS, FEDEX, EMS，S.F EXPRESS etc. |
| 1. Sample service | 2. Optimal price | 3. Customized logo |
| 4. Fast feedback | 5. Customized size | 6. Safety package |
| 7. ISO9001 | 8. Aftersale service | 9. Low procurement risk |
