Iirhasi ezingenamphetho, ezinjenge-Internel 600, 601, 625, 686, ii-bickel-chromium-molybdenum ye-Alterbdem yamandla aphezulu kunye nokunganyangeki kobushushu obuphakathi. Ngenxa yokuzinza kwayo okuphakathi kwe-thermal ephezulu, i-ignel inokusetyenziswa kubushushu osebenza kwi-Crymogenic ukuya kuma-2200¡n (982¡cãc). Phantse kungabikho msulelo kwiigesi ezingenamsebenzi kwiindawo ezinobulali, amanzi olwandle, ityuwa engathathi hlangothi, kunye neendaba zeAlkaline. Kuba umxholo ophezulu wegesi ye-intellel usenza ukuba bakwazi ukumelana neemeko ezahlukeneyo zoncedo. Kwiimeko ezinzima kakhulu zoncedo, indibaniselwano ye-Nickel kunye neChromium ibonelela ngokuchaseneyo neekhemikhali ezixineneyo, ngelixa i-Nickel kunye neziqulatho zeMolybdenim zibonelela ngokuchasene nendawo enganyangekiyo.