Fireclay checker brick


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.
  • Fireclay checker brick
  • Fireclay checker brick
  • Fireclay checker brick
  • Fireclay checker brick
  • Fireclay checker brick
  • Fireclay checker brick
  • Fireclay checker brick
  • Fireclay checker brick
Fireclay checker brick
Fireclay checker brick
Fireclay checker brick
Fireclay checker brick

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Description

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.

 

Feature:

  • Very high mechanical strength,
  • Good resistance to abrasion and corrosion,
  • Good volume stability at high temperature,
  • Chemical attack to provide long service life,
  • Easy operation and installation,
  • Broad usage or applications and low price.
Application
1. 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
 
2. Non-ferrous Metal industry
Smelting furnace, reverberatory furnace etc
 
3. Building materials industry
Cement kiln,glass kiln,ceramic kiln,lime kins,kiln car,tunnel kiln,rotary kiln
 
4. Energy&Incineration
Coke oven,general boiler,power generation boiler,circulating fluidized bed boiler,electric furnace,carbon roasting furnace,waste incinerators
 
5. Others
Petrochemical industry furnace,Pizza oven
Specification:

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)

 

Inquiry
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