Waya wa Pt-iridium ndi platinum-based binary alloy yokhala ndi selenium. Ndi yankho lolimba lokhazikika pa kutentha kwambiri. Ikazizira pang'onopang'ono kufika pa 975 ~ 700 ºC, kuwonongeka kwa gawo lolimba kumachitika, koma njira yolinganiza gawo imapita pang'onopang'ono kwambiri. Imatha kusintha kwambiri kukana dzimbiri kwa platinum chifukwa cha kusasinthasintha kwake mosavuta komanso kukhuthala. Pali Ptlr10, Ptlr20, Ptlr25, Ptlr30 ndi ma alloy ena, okhala ndi kuuma kwakukulu komanso malo osungunuka kwambiri, kukana dzimbiri kwambiri komanso kukana kocheperako, kuchuluka kwa dzimbiri kwa mankhwala ndi 58% ya platinum yoyera, ndipo kuchepa kwa kulemera kwa oxidation ndi 2.8mg/g. Ndi chinthu chamagetsi chodziwika bwino chokhudzana ndi magetsi. Chimagwiritsidwa ntchito polumikizirana kwambiri ndi injini za aero, kulumikizana kwamagetsi kwa ma relay okhala ndi mphamvu yayikulu komanso ma Wei motors; ma potentiometers ndi maburashi a conductive ring a sensors olondola monga ndege, ma missile ndi ma gyroscopes

Amagwiritsidwa ntchito kwambiri m'mafakitale a mankhwala, ulusi, ndi ma spark plugs