Tri-Mor Alcast Extra
This is a bauxite based castable which has been specifically developed for applications in molten aluminium. Molten metal penetration and corundum growth can be significantly reduced.
| Characteristics | |||||
| Bond Type | Hydraulic – Ceramic | ||||
| Raw Material Base | Bauxite | ||||
| Maximum Service Temperature °C | 1400 | ||||
| Refractoriness °C (Seger Cone) | 1670 (30) | ||||
| Bulk Density kg/m3 Dried to 110°C | 2900 | ||||
| Net Material Required Cast (Gunned) kg/m3 | 2900 (n/a) | ||||
| Physical Properties | |||||
| Test Temperature °C | Cold Crushing Strength N/mm2 | Permanent Linear Change % | |||
| 110 | 50 | nil | |||
| 800 | 100 | -0.2 | |||
| 1000 | 100 | -0.4 | |||
| 1300 | 100 | -0.4 | |||
| 1400 | 100 | +/-1.5 | |||
| Thermal Conductivity at mean temp. 600°C (W/mK) | 2.3 | ||||
| Chemical Analysis (%) | |||||
| Al2O3 | 78 | ||||
| SiO2 | 12 | ||||
| CaO | 0.7 | ||||
| Fe2O3 | 1.1 | ||||
| Cr2O3 | – | ||||
| SiC | – | ||||
| P2O5 | – | ||||
| MgO | – | ||||
| Water Addition | |||||
| % by weight | 5.0-5.8 | ||||
| Litres/25kgs | 1.25-1.45 | ||||
| Samples Prepared By : | Vibrocasting | ||||
| Note : The above typical values shown are based on average test result on standard samples. Properties are subjected to reasonable variation based on product shape etc. and hence should be considered for general guidence only. The above data is determined by regular sample testing in accordance with British Standard 1902 (where applicable). Because normal manufacturing tolerances apply, the data should not be taken as a precise specification. | |||||
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