Si alloys
Ferrosilicon is used as a source of silicon to reduce metals from their oxides and to deoxidize steel and other ferrous alloys. This prevents the loss of carbon from the molten steel (so called blocking the heat); ferromanganese, spiegeleisen, calcium silicides, and many other materials are used for the same purpose.
Choose Grade
Click below and choose your desired grade.
FeSi 72/75
| Si | 72.0%, 74.0% Min |
| Al | 2.0% Max |
| C | 0.2% Max |
| P | 0.04%Max |
| S | 0.02%Max |
FeSi 65/45
| Si | 63-68%, 41-47% |
| C | 0.2% Max |
| Al | 3% Max |
| P | 0.05% Max |
| S | 0.05% Max |
CaSi
| Si | 58-62% / 45% min |
| Ca | 30%, 28% min / 15% min |
| C | 1.0%Max / 0.2% max |
| P | 0.04%max / 0.02% max |
| S | 0.05% max |
FeSiBa
| Si | 50-55%, 70-75% |
| Ba | 30%min, 2.0-6.0% |
| C | 0.5% max |
| P | 0.04% max |
| S | 0.04 max |
FeSiZr
| Si | 70-75% |
| Zr | 1.4-2.0% |
| Ca | 2.0-2.5% |
| Al | 0.8-1.5% |
Si Metal
| 553# | Si: 98.5% min Fe: 0.5% max Al: 0.5% max Ca:0.30%max |
| 441# | Si: 99.0% min Fe: 0.4% max Al: 0.4% max Ca:0.10%max |
| 3303# | Si: 99.3% min Fe: 0.3% max Al: 0.3% max Ca:0.03%max |
| 2202# | Si: 99.5% min Fe: 0.2% max Al: 0.2% max Ca:0.02%max |
