項目Item | 指標Index |
化學成分(%) Chemical Composition | SiC,% | ≥72 |
Si3N4 | ≥18 |
Fe?O?,% | ≤1.0 |
耐火度,℃ Refractoriness | ≥1790 |
顯氣孔率,% Apparent porosity | ≤16 |
體積密度,g/cm³ BulkDensity | ≥2.6 |
常溫耐壓強度,Mpa Cold Crushing Strength | ≥180 |
高溫抗折強度,Mpa Modulus of Rupture,Mpa | 1100℃X0.5h | ≥50 |
熱震穩定性,次 Thermal Shock Resistance | 1100℃-水冷(cold water) | ≥60 |
0.2MPa荷重軟化開始溫度,℃ 0.2MPa Refractoríness under load | ≥1600 |
熱膨脹率,%1000℃ Thermal Expansivity | ≤0.60 |