Cobalt nicyuma kibengerana nicyuma cyijimye, ugereranije birakomeye kandi byoroshye, ferromagnetic, kandi bisa nicyuma na nikel mubikomeye, imbaraga zingana, imiterere yubukanishi, imiterere ya termodinamike, nimyitwarire ya electrochemic.Magnetism irazimira iyo ishyushye kuri 1150 ℃.Ifu nziza ya cobalt ifu yakozwe na hydrogène yo kugabanya irashobora guhita yaka muri oxyde ya cobalt mu kirere.Oxidation ibaho ku bushyuhe bwinshi.Iyo ubushyuhe, cobalt ikora cyane hamwe na ogisijeni, sulfure, chlorine, bromine, nibindi, kugirango ibe ifatanye.Cobalt irashobora gushonga muri acide ya dilute kandi igahumeka muguhumeka aside nitricike ikora firime ya oxyde.Cobalt ihindurwa buhoro na aside hydrofluoric, ammonia na hydroxide ya sodium.Cobalt ni ibikoresho by'ibanze byifashishwa mu gukora ibinyobwa bidashobora kwihanganira ubushyuhe, ibinyomoro bikomeye, imiti irwanya ruswa, amavuta ya magneti hamwe n'umunyu wa cobalt.Cobalt nicyuma cyitwa amphoteric.

Imiterere ya chimique na chimique ya cobalt igena ko ari ibikoresho byingenzi byibanze kugirango habeho amavuta arwanya ubushyuhe, karbide ya sima, imiti irwanya ruswa, amavuta ya magneti hamwe nu munyu wa cobalt.Cobalt ishingiye ku mavuta cyangwa cobalt irimo ibyuma bivangwa na cobalt bikoreshwa nk'ibyuma, ibyuma bisunika, imiyoboro, moteri y'indege, moteri ya roketi, ibikoresho bya misile hamwe n'ibikoresho bitandukanye birwanya ubushyuhe bwinshi mu bikoresho bya shimi n'ibikoresho by'ibyuma bikomeye mu nganda za ingufu za kirimbuzi.Cobalt nkumuhuza muri powder metallurgie irashobora kwemeza ko karbide ya sima ifite ubukana runaka.Imashini ya magnetique ni ibikoresho byingirakamaro mu nganda zigezweho za elegitoroniki n’amashanyarazi, zikoreshwa mu gukora ibice bitandukanye bigize ibikoresho bya acoustic, optique, amashanyarazi na magneti.Cobalt nayo ni ikintu cyingenzi kigizwe na magnetiki ihoraho.Mu nganda zikora imiti, cobalt ikoreshwa hiyongereyeho superalloys hamwe na anti-ruswa, ariko no mubirahuri byamabara, pigment, enamel na catalizator, desiccant nibindi.Byongeye kandi, gukoresha cobalt bifite umuvuduko mwinshi witerambere murwego rwa bateri.

Cobalt yicyuma ikoreshwa cyane mugukora amavuta.Cobalt base alloy ni ijambo rusange kuri rimwe cyangwa byinshi bivanze bikozwe muri cobalt na chromium, tungsten, fer na nikel.Igikoresho cyuma kirimo urugero runaka rwa cobalt kirashobora kunoza cyane imyambarire no kugabanya ibyuma.Carbide ya Starlite irimo cobalt irenga 50% ntizatakaza ubukana bwayo bwa mbere niyo yashyutswe kugeza kuri 1000 ° C, none iyi karbide yabaye ibikoresho byingenzi bikoreshwa hagati yibikoresho byo gutema birimo zahabu na aluminium.Muri ibi bikoresho, cobalt ikomatanya izindi ngano za karbide zicyuma mubigize amavuta, kugirango ibivange bigire ubukana bwinshi kandi bigabanye kumva ingaruka.Iyi mavuta yahujwe kandi irasudwa hejuru yibice, bishobora kongera ubuzima bwibice inshuro 3 kugeza kuri 7.Amavuta akoreshwa cyane mu buhanga bwo mu kirere ni amavuta ashingiye kuri nikel, kandi amavuta ya cobalt nayo ashobora gukoreshwa, ariko "imbaraga zimbaraga" zivanze zombi ziratandukanye.Imbaraga za nikel zishingiye kuri nikel zirimo titanium na aluminiyumu ni nyinshi kubera ko hashyizweho agent ikomera icyiciro kigizwe na NiAl (Ti), iyo ubushyuhe bwo gukora buri hejuru, ibice bikomeretsa ibice byimurirwa mubisubizo bikomeye, hanyuma umusemburo uhita utakaza imbaraga.Ubushyuhe bwo kurwanya ibinyomoro bishingiye kuri cobalt biterwa no gukora karbide zidakira, ntibyoroshye guhinduka ibisubizo bikomeye, kandi ibikorwa byo gukwirakwiza ni bito.Iyo ubushyuhe buri hejuru ya 1038 ° C, ibyiza bya cobalt bishingiye ku mavuta byerekanwe neza.Kuri moteri ikora cyane, moteri yubushyuhe bwo hejuru, cobalt ishingiye kuri alloys nibyiza.