Refractory Castables
1260 fiber refractory castables,1400 fiber refractory castables
Refractory Castables
Applications:
Industrial furnace wall lining or high temperature industrial furnace insulation layer lining dorsal
Electric Furnace Door,observation hole,firing Tsui brick
Nonferrous metal, black metal melting groove,groove
Name
Item | Low cement castable | Ultra Low cement castable | ||||||
HNDG45 | HNDG65 | HNDG75 | HNDG90 | HNCG45 | HNCG70 | HNCG95 | ||
Maximum service temperature °C | 1400 | 1500 | 1550 | 1650 | 1450 | 1550 | 1650 | |
Bulk density g/cm3 | 2.3 | 2.6 | 2.7 | 2.9 | 2.35 | 2.65 | 3.1 | |
Cold crushing strength MPa | 110°C×24h | ≥25(1350°C) | ≥30 | ≥30 | ≥40 | ≥25(1350°C) | ≥30 | ≥35 |
1500°C×3h | ≥45(1350°C) | ≥60 | ≥65 | ≥80 | ≥45(1350°C) | ≥60 | ≥80 | |
Modulus of rupture MPa | 110°C×24h | 5(1350°C) | 6 | 8 | 8 | 5 | 6 | 8 |
1500°C×3h | 7(1350°C) | 9 | 10 | 12 | 7 | 9 | 12 | |
Permanent linear change (1500°C×3h) % | ±0.5(1350°C) | ±0.5 | ±0.5 | ±0.5 | ±0.5(1350°C) | ±0.5 | ±0.5 | |
Al2O3 % | ≥45 | ≥65 | ≥75 | ≥90 | ≥45 | ≥70 | ≥95 | |
Fe2O3 % | ≤1.8 | ≤1.5 | ≤1.5 | ≤1.2 | ≤1.8 | ≤1.5 | ≤1.0 | |
CaO % | ≤1.8 | ≤1.5 | ≤1.5 | ≤1.2 | ≤1.0 | ≤1.0 | ≤1.0 | |
