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High Alumina Checker Firebrick

High alumina chequer firebrick is a heat-carrying heat storage body with excellent thermal properties, strong heat exchange capacity, a large heat storage area, smooth ventilation, and low resistance. Refractory high alumina chequer fire brick is a kind of heat transfer medium, firebrick is mainly used in the upper part of the regenerator of hot blast stove to store heat storage. There is a plurality of through-holes parallel to the side surfaces, positioning projections, and positioning grooves on the two parallel surfaces.

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High Alumina Checker Firebrick Features & Advantages

1. High refractoriness.
2. Good spalling resistance and wear resistance.
3. Good corrosion resistance.
4. Good thermal shock resistance.
5. High mechanical strength.
6. High-temperature creep rate is low.

High Alumina Checker Firebrick for Furnace Technique Data

High Alumina Checker Firebrick Physical and Chemical Index:
Item Properties
RS-80 RS-75 RS-65 RS-55 RS-48
Al2O3 (%) 80 ≥75 ≥65 ≥55 ≥48
Refractoriness  (°C ) ≥1790 ≥1790 ≥1790 ≥1770 ≥1750
Bulk density  (g/cm3) 2.65 2.5 2.45 2.4 2.3
Softening temperature under load  (°C ) 1530 ≥1520 ≥1500 ≥1470 ≥1420
ReheatingLinear Change Rate  (%) 1500°CX2H 0.1 0.1 0.1 0.1 0.1
1450°CX2H -0.4 -0.4 -0.4 -0.4 -0.4
Apparent porosity (%) 22 ≤23 ≤23 ≤22 ≤22
Cold crushing strength (Mpa) 55 ≥50 ≥45 ≥40 ≥35
Application steel furnace, glass furnace, sodium silicate furnace, ceramic shuttle kiln, cement rotary kiln, blast furnace, electric furnace, blast furnace, and reverberatory furnace.

High Alumina Checker Firebrick Applications

1. Steel furnaces
2. Ironmaking furnaces
3. Glass kiln
4. Ceramic tunnel kiln
5. Cement kiln

About Rongsheng Kiln Refractory Company

Zhengzhou Rongsheng Kiln Refractory Co., Ltd, located in the beautiful Xinmi City, Henan Province with rich refractory materials. Established in the early 90s of twenty century, with continuous innovation and development, now we are a comprehensive enterprise producing refractory in metallurgy, electric power, building materials, chemical industry, glass, non-ferrous metals, etc. There is more than 180 staff, including 20 professional technicians. We have 3 automatic production lines for shaped, unshaped, and insulating refractory materials.


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