Light weight fire clay brick
See larger image: Light weight fire clay brick| Brand Name: | oreworld |
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| Shape: | Brick |
| Place of Origin: | Hebei China |
| Material: | Alumina Block |
| Port: | Tianjin or Qingdao |
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| Payment Terms: | L/C,T/T |
| Package: | Bricks are packed in carton that put on wooden pallet and then polyethylene film is placed over it, finally the package is tied up with plastic strips.10 piece in one carton, 48 carton on one pallet and 24 pallet in one 20 feet container for 230m*114mm*65mm size bricks |
Product Details
used in high temperature insulation layer of furnace that has high refractoriness.
Generally speaking, the volume density for light weight fire clay brick is between 0.4-1.5 g/cm3, porosity is from 66% to 73%, compressive strength is 1.5-8.1 MPa and thermal conductivity rate is 0.291-0.582 W / (Mk) (350 ).
Light weight fire clay brick is used in high temperature insulation layer of furnace that has high refractoriness and good thermal shock resistance. High quality of high alumina insulation bricks can be used as the linings that directly contact the fire however it can not be used in the place where eroded by slag directly. Because the high alumina insulation brick is of good stability under reduction condition it is widely used as the inner insulation layer in the furnace that protected by hydrogen or carbon monoxide atmosphere. Its working temperature is 1350~1500 and working temperature is 1650~1800 for high pure alumina bricks.
In Chinese national standards, it is classified into seven grades such asLG-1.0, LG-0.9, 0.8 and etc according to the volume density.
Item | Index | |||||||||
NG- | NG- | NG- | NG- | NG- | NG- | NG- | NG- | NG- | NG | |
Bulk density g/cm3,≤ | 1.5 | 1.3 | 1.3 | 1.0 | 0.9 | 0.8 | 0.7 | 0.6 | 0.5 | 0.4 |
Compress strength MPa | ≥5.9 | ≥4.4 | ≥3.9 | ≥2.9 | ≥2.5 | ≥2. 5 | ≥2.0 | ≥1.5 | ≥1.2 | ≥1.0 |
Testing temperature when reheated with 2% contracting rate | 1400 | 1400 | 1350 | 1350 | 1300 | 1250 | 1250 | 1200 | 1150 | 1150 |
Thermal conductivity , | ≤0.7 | ≤0.6 | ≤0.6 | ≤0.5 | ≤0.4 | ≤0.35 | ≤0.35 | ≤0.25 | ≤0.25 | ≤0.2 |
48 carton for standard size as minimum order is accepted and 10 containers can be supplied per month.
Light weight fire clay bricks delivery time45 days after receiving the L/C from bank.
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