Ferromangainéisis deoxidizer a úsáidtear go coitianta i ndéanamh cruach. Tá éifeacht desulphurizing aige freisin, ag laghdú guaiseacha sulfair. Dá bhrí sin, is breiseán maith é le haghaidh cruach agus réitigh.
ZhenAn ferromangainéis:
| Mn | C | Si | P | S | 10-50mm 10-100mm 50-100mm |
|
| Mangainéis Ferro Carbóin Íseal | 80 | 0.4 | 2.0 | 0.15/0.3 | 0.02 | |
| 80 | 0.7 | 2.0 | 0.2/0.3 | 0.02 | ||
| Meán-Charbóin Fearó Mangainéis | 78 | 1.5/2.0 | 2.0 | 0.2/0.35 | 0.03 | |
| 75 | 2.0 | 2.0 | 0.2/0.35 | 0.03 | ||
| Mangainéis Ferro Ardcharbóin | 75 | 7.0 | 2.0 | 0.2/0.3 | 0.03 | |
| 65 | 7.0 | 2.0 | 0.2/0.3 | 0.03 |
