China Alumina Ceramic Disc Valve Disc for Faucet Tap Cartridge, Find details about China Alumina Ceramic Disc, Alumina Ceramic Disc Valve Disc from Alumina Ceramic Disc Valve Disc for Faucet Tap Cartridge
Test Item/Unit | Numerical Value | Test Item/Unit | Numerical Value | ||||
Product Material | Alumina | Zirconia | Product Material | Alumina | Zirconia | ||
Component Content % | ≥99% | ≥95% | ≥90% | Volume Resistance cm | >1012 | >1012 | >1012 |
Sintering Temp ºC | 1780-1800 | 1650-1680 | 1550-2600 | Bending Strength Mpa | 400 | 320 | 1100 |
Specific Gravity g/cm3 | ≥3.8 | ≥3.6 | >6 | Thermal Expansion Coefficient *10° | 6.8-8 | 6.2-8.5 | 6.9-10 |
Breakdown Voltage Strength kv/mm | 15 | 15 | 15 | Roughness μm | ≤0.8 | ≤0.8 | ≤0.8 |
Bibulous Rate % | <0.01 | <0.01 | <0.01 | Mirror Polished Ra | ≤0.05 | ≤0.1 | ≤0.05 |
Anti Pressure Mpa | 3700 | 2400 | 5000 | Thermal Conductivity W/m-k | 25 | 20 | 2.5 |
Hardness Hra | ≥88 | ≥82 | ≥88 | Temperature Resistance ºC | 1700 | 1600 | 1800 |
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