Features of ceramic components: 1. Refractory, High Temperature Resistance, Maximum Used Temperature: 1800 ºC (3272ºF)... 2. Hardness Strength Up To Mohs 9.0; HRA 80-90, Wear Resistance wear rate 0.68 mm3·m-2·h-1.... 3. High Voltage, Good Insulation Performance ,Electrical Resistivity Up To 10∧14 Ohm.Cm... 4. High Polished Surface Up To Rz0.8(Ra0.1) ... 5. Superior Mechanical Strength, Max 10 MPa.m1/2 Fracture toughness, 6. Pressure Resistance, Max 2300MPa compressive strength... 7. Anti-High Corrosion Resistance, Such As Acid Alkali Resistance... 8. Long Service Life... 9. Other excellent property Other ceramic valve components: ceramic sealing,ceramic seat, ceramic ball, ceramic washer, ceramic ring, ceramic bushing sleeve, ceramic rube, ceramic flanged, ceramic tube etc |
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Al 2O 3 |
ZrO2/Y2O3 | ZrO2/MgO | MgO | SiC | Si3N4 Reaction sintered | Si3N4 Hot pressed | ALN |
Physical properties | ||||||||
Density (g/cm3) | 3,9 | 5,9 | 5,75 | 3,58 | 3,2 | 3,27 | 3,29 | 3,26 |
Molecular weight (g/mole) | 102 | - | - | 40,4 | 40,1 | 140 | 140 | 41 |
Maximum service temperature air (°C) | 1700- 1800 | 1500 | 1000 | 2200 | 1500 | 1200- 1500 | 1100- 1600 | 1000- 1800 |
Mechanical properties | ||||||||
Hardness (Mohs) | 9 | - | - | 5,5 | 9 | - | - | 7 |
Modulus of elasticity (GPa) | 300-400 | 200 | 200 | 250-300 | 420 | 170-220 | 280-310 | 318 |
Poisson's ratio | 0,25 | - | - | 0,18 | 0,14 | 0,25-0,26 | 0,27 | 0,25 |
Fracture toughness (MPa.m1/2) | 2-3 | 7-13 | 6-10 | - | 2,5-3,5 | 3,5-5 | 6,1 | 4,5 |
Electrical properties | ||||||||
Dielectric constant | 9-10 | - | - | 9-10 | - | 10 | 10 | 9,2 |
Electrical resistivity at 20°C (Ohm.cm) | >10 14 | 10 13-10 14 | >10 10 | - | 10 2-10 6 | >10 7 | 10 12- 10 15 | >10 14 |
Dielectric strength (kV/mm) | 10-20 | 9 | 2-10 | - | - | - | - | 15 |
Thermal properties | ||||||||
Specific heat (J/K/kg) | 900 | 400-500 | 420 | 870-880 | 750 | 690 | 680-800 | 800 |
Thermal conductivity (W/m/K) at 20°C | 26-35 | 2,2-3,2 | 1,5-2,5 | 40-50 | 63-155 | 9-30 | 15-43 | 180 |
Coefficient of thermal expansion ( 10-6) from 20 to 1000°C | 8-9 | 10-11 | 5-16 | 10-13 | 4-5 | 3 | 3,3 | 4,4-5,3 |
Melting point (°C) | 2050 | 2590 | - | 2800 | 2500 | 1900 | 1900 | 2200 |
Our Custom Capabilities:
Technical reference of manufacture | |
Dimensional accuracy | Up to 0.001mm |
Concentricity | Up to 0.003mm |
Parallelism | Up to 0.002mm |
The inner hole tolerance | The minimum 0.005mm |
Straight flute | The narrowest 0.1x100mm |
The thickness of the size | Minimum to 0.02mm |
The screw thread | Minimum internal thread M2 |
Cylindricity | Up to 0.004mm |
The linear tolerance | Up to 0.001mm |
The smallest aperture | The minimum 0.07mm |
Precision process | CNC maching,grinding,lapping |
Surface finish | Glazed,polishing or metallized |
FAQ
1. Monthly Capacity: 50,000-60,000 pcs;
2. Material: OEM or as per your suggestion;
3. Lead time: about 7-20 days, pls confirm the quantities required;
4. Incoterm: FOB, CFR, CIF;
5. Delivery Cost: It is determinated by the destination port;
6. Payment Term: PayPal; T/T; L/C.
7. Shipment: by sea, by air, by courier, by post, etc.
Feedback
1. For any query or doubt, please contact us firstly, we will update with you soon;
2. For any other satisfaction, please also feedback to us, which could improve our service better and better.
For more information about Ceramic valves and valve components,please contact our engineers in time >>> |
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