項(xiàng)目 |
指標(biāo) |
|||
GGZ-5 |
GGZ-12 |
GGZ-20 |
GGZ-30 |
|
Cr2O3 % |
≥5 |
≥12 |
≥20 |
≥30 |
Cr2O3+Al2O3 % |
≥93 |
≥93 |
≥93 |
≥93 |
Fe2O3 % |
≤0.3 |
≤0.3 |
≤0.3 |
≤0.3 |
顯氣孔率 % |
≤18 |
≤18 |
≤18 |
≤18 |
體積密度 g/cm3 |
≥3.10 |
≥3.20 |
≥3.40 |
≥3.50 |
常溫耐壓強(qiáng)度 MPa |
≥100 |
≥100 |
≥100 |
≥100 |
0.2MPa荷重軟化開始溫度 ℃ |
≥1700 |
≥1700 |
≥1700 |
≥1700 |