Fferromanganîsyn deoxidizer a ddefnyddir yn gyffredin mewn gwneud dur. Mae hefyd yn cael effaith desulphurizing, gan leihau peryglon sylffwr. Felly, mae'n ychwanegyn da ar gyfer gwneud dur a chastio.
ZhenAn ferromanganîs:
| Mn | C | Os | P | S | 10-50mm 10-100mm 50-100mm |
|
| Manganîs Ferro Carbon Isel | 80 | 0.4 | 2.0 | 0.15/0.3 | 0.02 | |
| 80 | 0.7 | 2.0 | 0.2/0.3 | 0.02 | ||
| Manganîs Ferro Carbon Canolig | 78 | 1.5/2.0 | 2.0 | 0.2/0.35 | 0.03 | |
| 75 | 2.0 | 2.0 | 0.2/0.35 | 0.03 | ||
| Manganîs Ferro Carbon Uchel | 75 | 7.0 | 2.0 | 0.2/0.3 | 0.03 | |
| 65 | 7.0 | 2.0 | 0.2/0.3 | 0.03 |
