Ferochromiumse yon alyaj fè ak chromium ak fè kòm eleman prensipal li yo. Li se youn nan ajan alyaj prensipal yo nan endistri asye a. Ferrochrome gen ant 50% ak 70% chromium.
ZhenAn ferrochrome:

| Klas | Konpozisyon chimik (%) | |||||
| Kr | C | sizo | P | S | ||
Mikwo kabòn |
FeCr-1 | 58-68 | 0.03-0.15 | 1.0-2.0 | 0.03-0.06 | 0.025-0.03 |
| FeCr-2 | 63-68 | 0.03-0.15 | 1.0-2.0 | 0.03-0.06 | 0.025-0.03 | |
Ba kabòn |
FeCr-3 | 58-68 | 0.25-0.5 | 1.5-3.0 | 0.03-0.06 | 0.025-0.03 |
| FeCr-4 | 63-68 | 0.25-0.5 | 1.5-3.0 | 0.03-0.06 | 0.025-0.03 | |
Mwayen kabòn |
FeCr-5 | 58-68 | 1.0-4.0 | 1.5-3.0 | 0.03-0.06 | 0.025-0.03 |
| FeCr-6 | 63-68 | 1.0-4.0 | 1.5-3.0 | 0.03-0.06 | 0.025-0.03 | |
Segondè kabòn |
FeCr-7 | 58-68 | 4.0-10.0 | 3.0-5.0 | 0.03-0.06 | 0.03-0.06 |
| FeCr-8 | 63-68 | 4.0-10.0 | 3.0-5.0 | 0.03-0.06 | 0.03-0.06 | |


