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| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 0.28% | 0.02 | |
| K2O | 0.70% | 0.02 | |
| MgO | 0.22% | 0.02 | |
| Na2O | 0.71% | 0.04 | |
| TiO2 | 1.35% | 0.06 | |
| Al2O3 | 30.44% | 1.00 | |
| SiO2 | 53.45% | 2.98 | |
| Fe2O3 | 1.61% | 0.03 | |
| LOI | 11.23% | n/a | |
| Oxide Weight | 297.42 | ||
| Formula Weight | 335.05 | ||
Kaiser was reorganized into National refractories in 1985, the fireclay is now sold at NAT Dry Milled Fireclay.
| Materials |
NAT Dry Milled Fireclay
|
| Materials |
Fireclay
|
| Typecodes |
Fireclay
Fireclays are non-kaolin non-ball clay materials similar to stoneware clays but lacking fluxing oxides. Many fireclays have a PCE of 28 or more. |
| Pyrometric Cone Equivalent | 31 |
|---|
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