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PRCO offers a wide range of precast shapes for tundish such as MgO-based or MgO-MA-based skimmer blocks, impact pads and nozzle well blocks. Individual design is available to meet needs of specific operation condition. PN series products feature high fired strength, superior resistance to erosion/corrosion, long service life.
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| Brand | PN-T39 | PN-T30 | PN-WS8-2 | PN-SK6 | PN-SK90 |
| Al2O3(%);≥ | 45 | 80 | 80 | 5 | - |
| MgO(%);≥ | 33 | 6 | 4 | 80 | 85 |
| SiO2 (%);≤ | 10 | 7 | 7 | 8 | 7 |
| Bulk density (g/cm3);≥ | 110℃×24h | 2.90 | 3.00 | 3.05 | 2.90 | 2.85 |
| Modulus of rupture (MPa);≥ | 110℃×24h | 10 | 3 | 5 | 7 | 10 |
| Cold crushing strength (MPa); ≥ | 110℃×24h | 60 | 20 | 35 | 50 | 58 |
| Linear change (%) | 110℃×24h | ±0.1 | ±0.1 | ±0.1 | ±0.1 | ±0.1 |
