Cov neeg siv khoom tseem ceeb ntawm ferromolybdenum yog kev lag luam hlau thiab hlau, vim Mo yog qhov tseem ceeb tshaj plaws alloying ntsiab nyob rau hauv ntau cov hlau, cam khwb cia hlau thiab alloys. Kev faib tawm ntawm molybdenum siv rau kev tsim cov khoom muaj feem xyuam yog raws li hauv qab no:
Ferromolybdenum yog siv los hloov cov ntshiab molybdenum nyob rau hauv lub alloying ntawm hlau, cam khwb cia hlau thiab alloys. Yog li, hauv cov hlau, cov ntsiab lus molybdenum nyob ntawm 0 1-0.3% (alloy steel) mus rau 3-10 % (cov cuab yeej steel). Molybdenum txhim kho hardenability thiab hardenability ntawm hlau, ua rau nws toughness, tshem tawm tempering brittleness ntawm chromium-nickel steel, pab txuag cov khoom steel ntawm qhov kub thiab txias. Ntxiv ntawm molybdenum rau cam khwb cia hlau nce nws lub zog thiab tsis kam hnav.
Molybdenum tau pom tias yuav txhim kho cov khoom zoo ntawm cov khoom siv, nrog rau kev txhim kho corrosion, tiv taus kub thiab hnav tsis kam.