Sillimanite brick

Description

Sillimanite brick Introduction
  
Sillimanite brick is manufactured from sillimanite and high-purity mullite as the main raw materials, with the addition of ultra-fine micro-powders and additives. It is formed under high pressure and sintered at high temperatures, resulting in low porosity, high strength, and excellent thermal shock resistance.

During heating, sillimanite undergoes a phase transformation into mullite and free silica, which endows sillimanite bricks with exceptional high-temperature performance, excellent thermal shock resistance, and superior structural strength. Sillimanite brick exhibits superior physical and chemical properties compared to high-alumina brick. Its refractoriness ranges from 1770°C to 1830°C, and the refractoriness under load (RUL) initial softening temperature ranges from 1500°C to 1650°C.

RongSheng Refractories utilizes advanced manufacturing technology to produce high-quality sillimanite bricks, ensuring stable quality, competitive pricing, and the flexibility to customize dimensions according to specific project requirements.
 
Use Of Sillimanite Brick
 
Sillimanite bricks are mainly used in the forming of glass tank furnace throat openings, blast furnace linings, furnace throats, and ceramic industry kiln furniture. Sillimanite products include sillimanite bricks, pots, bowls, rods, plungers, feeders, and other shapes.
 
Rongsheng Refractory Sillimanite Brick Technical Data 
 

Sillimanite Brick Physical and Chemical Index:
Item		Properties
		RS-SB-65	RS-SB-60
Al2O3 (%)		≥65	≥60
SiO2 (%)		≤32	≤35
Fe2O3 (%)		≤0.5	≤1.0
Bulk density (g/cm3)		≥2.5	≥2.4
Softening temperature under load 0.2 Mpa, (°C)		≥1650	≥1600
Linear changes on reheating 1400°CX2H, (%)		±0.2	±0.2
Apparent porosity (%)		≤18	≤19
Cold crushing strength (Mpa)		≥80	≥80