1.Made by flint clay clinker and binder,through Crushing,Mixing,Shaping,Drying and high temperature Sintering.
2.Al2O3 content is 30%-48%,SiO2 content is 50%-65%,and a small number of alkali metals,alkaline earthmetal oxides TiO2,Fe2O3 etc.
3.Mineral composition is usually mullite, quartz and glass phase.
4.Refractoriness is 1580-1750°C, refractoriness under load is 1250-1450°C, line expansion coefficients is low, with good thermal shock resistance,strong ability to resist erosion acid slag.
5.Working temperature:less than 1350°C.
What is the Technique Data of our fireproofing brick?
SK series |
SK30 |
SK32 |
SK34 |
SK35 |
Al2O3 |
30%-35% |
35%-38% |
38%-42% |
42%-50% |
Item |
33% Al2O3 fire clay brick |
38% Al2O3 fire clay brick |
42% Al2O3 fire clay brick |
48% Al2O3 fire clay brick |
Al2O3 |
33% |
38% |
42% |
48% |
Fe2O3/% |
≤3 |
≤3 |
≤3 |
≤2.5 |
Refractoriness |
≥1690 °C |
≥1730 °C |
≥1750 °C |
≥1750 °C |
Bulk density/g/cm3 |
1.9-2.0 |
2.0-2.1 |
2.1-2.18 |
2.15-2.3 |
Unit weight (230*114*65mm) |
≥3.35KGS |
≥3.55KGS |
≥3.65KGS |
≥3.75KGS |
Apparent porosity/% |
≤26 |
≤24 |
≤24 |
≤22 |
Cold crushing strength |
≥20Mpa |
≥25Mpa |
≥30Mpa |
≥35Mpa |
Refractoriness under load |
≥1250 °C |
≥1300 °C |
≥1350 °C |
≥1420 °C |
Reheating Linear Change/% |
0~ -0.5 (1350°C,2h) |
0~ -0.3 (1350°C,2h) |
0~ -0.4 (1450°C,2h) |
+0.1~ -0.4 (1450°C,2h) |
What is the Feature of Our fireproofing brick?
1.Very high mechanical strength,
2.Good resistance to abrasion and corrosion,
3.Good volume stability at high temperature,
4.Chemical attack to provide long service life,
5.Easy operation and installation,
6.Broad usage or applications and low price.
What is the Applications of our fireproofing brick?
Iron & steel making industry |
Blast furnace,hot blast furnace(stove),pellet shaft furnace,hot metal ladle,steel ladle,tundish,eating furnace,soaking pit furnace,heat treatment furnace,refining furnace,reheating furnace,metal mixter furnace,cupola furnace etc thermal technology equipment |
Non-ferrous metal industry |
Smelting furnace, reverberatory furnace etc |
Building materials industry |
Cement kiln,glass kiln,ceramic kiln,lime kins,kiln car,tunnel kiln,rotary kiln |
Energy&Incineration |
Coke oven,general boiler,power generation boiler,circulating fluidized bed boiler,electric furnace,carbon roasting furnace,waste incinerators |
Others |
Petrochemical industry furnace,Pizza oven |
What is the Shapes &Sizes of our fireproofing brick?
Straight |
Split |
Arch |
Wedge |
Tile |
Ohter Shape |
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L×W×H(mm) |
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Have in Stock |
230×114×65 230×114×75 230×57×65 |
230×114×32 230×114×40 |
230×114×65/45 230×114×65/55 |
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NO in stock |
230×114×25 230×114×50 |
230×114×75/45 230×114×75/55 230×114×75/65 |
230×230×38 230×230×50 230×230×65 230×230×75 |
Key brick,Skew brick, Soap,Checker,Neck, Taper, |
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We also can make brick according to customers’drawing and requirements. |