Specifications
low thermal conductivitygood thermal insulation performance
long service life, easy operation,
could be shaped freely
High Alumina Refractory FireBrick
High alumina brick, The main mineral component is mullite and corundum phases, with excellent high-temperature physical properties and chemical corrosion resistance, have very good ability of anti-acidity, anti-metal fluid corrode and anti-oxidation.
High alumina brick are widely used in industry furnaces such as Blast furnace, hot-blast furnace etc.
High Alumina FireBricks | |
Dimension | 230*114*65(mm) |
Bulk Density | 2.05,2.1-2.15, 2.3-2.4, 2.4, 2.5 |
Packaging Details | Pallet covering by PE membrane |
Applications | Metallurgy, Chemical industry, Heat treatment furnace. |
Physical and chemical index
Brand | SK-34 | SK-36 | HA-60 | HA-70 | HA-75 |
Al2O3(%) | >42 | >50 | >60 | >70 | >75 |
Fe2O3(%) | <2 | <2 | <2 | <2 | <2 |
Refractoriness | 1750 | 1750 | 1770 | 1790 | 1790 |
refractoriness under load 0.2mpa(℃) | 1450 | 1450 | 1450 | 1510 | 1530 |
Porosity(%) | 19-23 | 19-23 | 19-23 | 19-23 | 19-23 |
Bulk density(g/cm3) | >2.2 | >2.3 | >2.35 | >2.4 | >2.4 |
Cold crushing strength (Mpa) | >30 | >40 | >45 | >50 | >60 |
Thermal expansion at 1000℃(%) | <0.6 | <0.6 | <0.6 | <0.6 | <0.6 |
* High intensity for pressure
* Good thermal shock stability
* Strong abrasion and corrosion resistance
* High cold crushing strength
* Excellent abrasion resistance at cold and hot conditions
* Low temperature line changes
* Long life, is 1.5 times the normal product