Loading Port:Shanghai
Payment Terms:TT OR LC
Min Order Qty:500 m.t.
Supply Capability:1000 m.t./month
1.65% Al2O3 min;
2. Refractoriness: 1790C min;
3.For steelmaking furnaces;
4.ISO 9001 Certificate;
5.Custom shape.
High alumina insulating fire brick is a kind of insulation material adopting organic matter as ignition loss substance in order to increase the porosity of refractory, which has such advantages as high porosity, small volume density, good insulation effect, high mechanical intensity, small thermal conductivity and long service life. For various industrial kilns & furnaces, it is a kind of essential refractory for energy saving and temperature preservation.
This series of High Alumina Insulating Fire Brick are made of selected high alumina bauxite, kaolin caly, hollow microsphere as the mian material.By shaping at high pressure and sintering at high temperature.
| Items | Mark | ||||||
Hihg Alumina brick | Clay brick | Phosphoric acid dipping clay brick | |||||
| GL-65 | GL- 55 | GL- 48 | ZGN-42 | ZGN-42 | |||
| Chemical Compositions ( %) ≥ | Al2O3 | 65 | 55 | 48 | 42 | 42 | |
| Fe2O3 | 2.0 | 2.0 | 2.0 | 1.6 | 1.7 | ||
| P2O5 | - | - | - | - | - | 7 | |
| Refractoriness ℃ | 1790 | 1770 | 1750 | 1750 | 1750 | - | |
| Apparent Porosity (%)≤ | 19 | 19 | 18 | 15 | 16 | 14 | |
| Alkali resistance (strength degradation)%≤ | - | - | - | - | - | 15 | |
| 0.2MPaRefractoriness under load,℃≥ | 1500 | 1480 | 1450 | 1450 | 1430 | 1450 | |
| CCS (Mpa)≥ | 58.8 | 49 | 49 | 58.8 | 49 | 60 | |
| Dead burnt linear change(%)≤ | 1450℃×2h | 0/-0.2 | 0/-0.2 | 0/-0.3 | 0/-0.2 | ||
| 1500℃×2h | 0/-0.2 | ||||||
Starting from the raw material into factory, Every production process of high alumina insulating fire bricks should through strict quality control, both the raw materials and finished products should be inspected time after time, to esure that each product to satisfy our customers, because of advanced automatic batching system and 2500 tons automatic hydraulic machine in the world were introduced, then a new line of the ladle fire bricks and other styling refractory products with a superior quality was put into production.
