| Modello | Contenuto dell'elemento(%) | |||||
| CA ≥ | Si ≥ | C ≤ | Al ≤ | P ≤ | S ≤ | |
| Ca31Si60 | 31 | 55-65 | 1.00 | 2.4 | 0.04 | 0.06 |
| Ca28Si60 | 28 | 55-65 | 1.00 | 2.4 | 0.04 | 0.06 |
| Ca24Si60 | 24 | 55-65 | 1.00 | 2.5 | 0.04 | 0.04 |
| Ca20Si55 | 20 | 50-60 | 1.00 | 2.5 | 0.04 | 0.04 |
| Ca16Si55 | 16 | 50-60 | 1.00 | 2.5 | 0.04 | 0.04 |