Silicon carbide crust-resistant castable takes silicon carbide (SiC ≥ 70%) as the main raw material, combined with high-alumina micropowder and anti-explosion fiber. Its refractoriness is > 1800℃, and the maximum service temperature ranges from 1600℃ to 1750℃.
Physical and Chemical Specifications
| Item | TGJ-85 | TGJ-80 | TGJ-78 | TGJ-76 | |
| SiC, % | ≥85 | 80 | 192PCS | 76 | |
| Bulk Density, g/cm³ | ≥2.5 | 2.36 | 2.34 | 2.24 | |
| Cold Crushing Strength, MPa | 110℃ × 24h | ≥45 | 22 | 36 | 6 |
| 1400℃ × 3h | ≥70 | 52 | 68 | 22 | |
| Modulus of Rupture, MPa | 110℃ × 24h | ≥5.5 | 3.5 | 6.8 | 2.5 |
| 1400℃ × 3h | ≥11 | 6 | 28 | 3.5 | |
| Linear Change on Firing, % | 1400℃ | +0.12 | +0.3 | +0.13 | +0.2 |
| Thermal Conductivity, W/(m·K) | 850℃ | ≥8.6 | 3.8 | 3.4 | 3.14 |
Product Features
Excellent crust resistance: dense and smooth surface, preventing adhesion of molten materials.
Outstanding thermal shock resistance: > 25 cycles (water cooling at 1100℃).
Strong corrosion resistance: resistant to acid/alkali slag and penetration of Cl⁻, SO₃ gases.
Low thermal conductivity (3–8 W/(m·K)) and high wear resistance.
Applications
Mainly used in high-temperature and easy-to-crust zones such as cement kiln preheater cones, calciner throats, and metallurgical furnace flues.It significantly reduces crust blockage, extends the ash cleaning cycle to 3–6 months, and allows fast curing (24 hours). It is a core refractory material for efficient anti-scaling and energy-saving operation of industrial kilns.
Product Quotation
Due to different application requirements and physical & chemical specifications of castables, prices vary accordingly. For detailed pricing, please click the button below to contact us.
Hot Tags: crust-resistant refractory castable, China crust-resistant refractory castable manufacturers, suppliers, factory, alumina castable refractory, castable cement, castable refractory, castable refractory adalah, high alumina refractory castable, lightweight refractory castable