Description
Mullite low-cement castable is a refractory material made primarily from mullite, combined with a small amount of cement and other additives. Its characteristics include high-temperature stability, high compressive strength, excellent volumetric stability, and outstanding resistance to molten slag.
Specification
| Item | Grade | |||
| MDJ-60 | MDJ-65 | MDJ-70 | ||
| ω(Al2O3) / % | ≥60 | ≥65 | ≥70 | |
| ω(CaO) / % | ≤1.8 | ≤1.7 | ≤1.7 | |
| Cold Modulus of Rupture/ MPa | 110℃×24h | ≥6 | ≥6 | ≥8 |
| 1000℃×3h | ≥7 | ≥8 | ≥9 | |
| 1500℃×3h | ≥12 | ≥13 | ≥13 | |
| Cold Crushing Strength/ MPa | 110℃×24h | ≥40 | ≥45 | ≥55 |
| 1000℃×3h | ≥55 | ≥60 | ≥65 | |
| 1500℃×3h | ≥60 | ≥80 | ≥95 | |
| Bulk Density/（g/cm3） | ≥2.5 | ≥2.55 | ≥2.6 | |
| Permanent Linear Change on Heating/ % | 1400℃×3h | ±0.8 | ±0.8 | ±0.8 |
Applications
Steel Industry: Used for the lining and thermal insulation of blast furnaces, converters, and other equipment.
Chemical Industry: Used for the lining and thermal insulation of various chemical reactors.
Power Industry: Used for the lining of combustion chambers, superheaters and other components in boilers.
Ceramic Industry: Used for the lining and thermal insulation of kilns.
Our services: refractory technicians, refractory installation drawings, refractory bricks and castables, refractory masonry services, refractory mixes and precast cell, special shaped bricks, insulation materials, installation supervision, accident investigation and resolution, other customized services.
