Ferrovanadium 40txhais tau hais tias cov ntsiab lus vanadium nyob nruab nrab ntawm 38% thiab 45%.
Ferrovanadium feem ntau yog siv los ua hlau alloy, xws li elastic steel, bearing steel, thiab cam khwb cia hlau. Nws yog dav siv. Cov ntsiab lus vanadium ntawm hlau yog ntau tshaj 30%. FeV yog dav siv nyob rau hauv kev lag luam steel vim hais tias cov vanadium tivthaiv nyob rau hauv ferrovanadium Alloy tuaj yeem tsim cov carbides ruaj khov nrog cov pa roj carbon hauv cov hlau, uas tuaj yeem kho cov qauv thiab cov nplej ntawm cov hlau thiab nce qhov kub ntawm cov nplej coarsened.
Ferrovanadium 40 hmoov:

| FeV muaj pes tsawg leeg (%) | |||||
| Qib | V | Al | P | Si | C |
| FeV40-A | 38-45 | 1.5 | 0.09 | 2.00 | 0.60 |
| FeV40-B | 38-45 | 2.0 | 0.15 | 3.00 | 0.80 |


