Fire Clay Brick

Clay refractory bricks are the most widely used refract…

Composition: Al2O3<=48% Refractoriness: 1580℃

Raw material: chamotte clay

Straight size: 230*114*65mm (9”*4.5”*2.5”)

Max service temp:1300℃

Application: various industrial furnace lings

Capacity: 100 tons/day

Package: wooden pallet

 

Product Overview

Clay refractory bricks are the most widely used refractories made from chamotte clay minerals and calcined at a high temperature of 1300 to 1400 ° C.. It can be easily located out in the nature and contains suitable content ratio of silica, cyanite and alumina. Fire clay bricks have low porosity and are durable for various re-heating process.

Characters

  • Good thermal shock resistance
  • Good resistance to chemical attack
  • Low porosity
  • High refractoriness under load

Application

Clay bricks are widely used in metallurgy, blast furnaces and hot blast furnaces, chemical industries waste incinerators, glass melting furnaces. It is the first selection of thermal equipment permanent lining material. Fire clay brick is mainly used in the low temperature parts of various industrial furnaces, due to the scale-up of a variety of industrial furnaces and severity of operating conditions, super dense clay bricks that made of more refined chamotte being calcinated at high temperature are applied more than before.

Specification

Item Chemical & Physical Properties
N-1 N-2a N-2b N-3a N-3b N-4 N-5 N-6
Refractoriness  ≥ 1750 1730 1730 1710 1710 1690 1670 1580
Load softening temperature  ≥ 1400 1350   1320   1300    
Rebirth line change rate 1400℃×,2h 0.1 0.1 0.2 0.2        
  -0.4 -0.5 -0.5 -0.5
% ≥ 1350℃×,2h         0.2 0.2 0.2 0.2
  -0.5 -0.5 -0.5 -0.5
Apparent porosity % ≥ 22  24  26  24  26  24  26  28
Crushing strength Kgf/cm2 ≥ 30 25 20 20 15 20 15 15
Thermal shock stability 300 250 200 200 150 2    

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