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  • Product Name: cast steel fire resistance bri...
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cast steel fire resistance 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.

  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.

cast steel fire resistance brick properties:

  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.

cast steel fire resistance 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.

 

Technique Data of casting steel fire resistance 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)
 
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