Ityhubhu ye-alloy luhlobo lwetyhubhu yentsimbi engenamthungo, eyahlulwe yaba yityhubhu engenamthungo yesakhiwo kunye netyhubhu ye-alloy enoxinzelelo oluphezulu. Yahluke kakhulu kwimigangatho yemveliso kunye noshishino lweetyhubhu ze-alloy, iityhubhu ze-alloy ezifakwe i-anneal kunye ne-tempered alloy zitshintsha iipropati zoomatshini. Zihlangabezana neemeko zokucubungula ezifunekayo. Ukusebenza kwayo kuphezulu kunombhobho wentsimbi oqhelekileyo ongenamthungo, ukwakheka kweekhemikhali kuqulethe i-Cr engaphezulu, ngoko ke inokumelana nobushushu obuphezulu, ukumelana nobushushu obuphantsi kunye nokumelana nokugqwala. Iityhubhu ze-carbon eziqhelekileyo ezingenamthungo azina-alloy okanye inani elincinci le-alloy. Ityhubhu ye-alloy isetyenziswa kakhulu kwi-petroleum, kwi-aerospace, kwiikhemikhali, kumbane, kwibhoyila, emkhosini nakwamanye amashishini, kuba iipropati zoomatshini zetyhubhu ye-alloy ziyaguquguquka, kulula ukuzilungisa.

Umbhobho wentsimbi ye-alloy usetyenziswa kakhulu kwisikhululo samandla, kwisikhululo samandla senyukliya, kwibhoyila yoxinzelelo oluphezulu, kwi-superheater yobushushu obuphezulu, kwi-reheater nakwezinye iipayipi kunye nezixhobo zoxinzelelo oluphezulu nobushushu obuphezulu. Yenziwe ngentsimbi yekhabhoni ekumgangatho ophezulu, intsimbi yesakhiwo se-alloy kunye nentsimbi engatyiwayo engatshiyo ngokuqengqeleka okushushu (ukukhupha, ukwandisa) okanye ukuqengqeleka okubandayo (umzobo).