Notes of brand name: G for blast furnace , C for trough, D for ramming material and 65 for AL2O3 content.
It is mainly used in the linings of trough of blast furnace with single trough(volume less than 1000m³).with ramming installation, it can be dried fast. The material containing calcium oxide is characterized by good erosion resistance and thermal shock resistance. GCD-50 and GCD-45 are used as linings of trough of blast furnace with volume less than 600m³.
It is mainly used in the linings of trough of blast furnace with single trough(volume less than 1000m³).with ramming installation, it can be dried fast. The material containing calcium oxide is characterized by good erosion resistance and thermal shock resistance. GCD-50 and GCD-45 are used as linings of trough of blast furnace with volume less than 600m³.
| Items | GCD-65 | GCD-50 | GCD-45 | |
| % ≥ Chemical composition | AL2O3 | 65 | 50 | 45 |
| SiC | 12 | 10 | 8 | |
| g/cm3 ≥ Bulk density | 110ºC×24h | 2.8 | 2.3 | 2.0 |
| 1450ºC×24h | 2.7 | 2.2 | 1.9 | |
| Mpa ≥ CCS | 110ºC×24h | 12 | 10 | 10 |
| 1450ºC×24h | 10 | 10 | 10 | |
| Mpa ≥ MOR | 110ºC×24h | 2.5 | 2.5 | 2.0 |
| 1450ºC×24h | 2.0 | 2.0 | 1.5 | |
| %1450ºC×24h Permanent linear change | ±1.0 | ±1.0 | ±1.0 | |