Chubu cha alloy ndi mtundu wa chubu chachitsulo chosasunthika, chogawidwa m'machubu osasinthika omangidwa ndi chubu cha alloy cholimba kutentha kwambiri. Mosiyana kwambiri ndi miyezo yopangira ndi mafakitale a machubu a alloy, machubu a alloy opindidwa ndi otenthedwa amasintha mawonekedwe a makina. Kukwaniritsa zofunikira pakukonza. Kugwira ntchito kwake ndikokwera kuposa kwa chitoliro chachitsulo chosasunthika wamba, kapangidwe ka mankhwala kali ndi Cr yambiri, kotero imakhala ndi kukana kutentha kwambiri, kukana kutentha kochepa komanso kukana dzimbiri. Machubu wamba osasinthika a kaboni alibe alloy kapena alloy yaying'ono. Chubu cha alloy chimagwiritsidwa ntchito kwambiri mumafuta, ndege, mankhwala, mphamvu zamagetsi, boiler, asilikali ndi mafakitale ena, chifukwa mawonekedwe a makina a chubu cha alloy ndi osinthasintha, osavuta kusintha.

Chitoliro chachitsulo cha alloy chimagwiritsidwa ntchito makamaka mu malo opangira magetsi, malo opangira magetsi a nyukiliya, boiler yotenthetsera kwambiri, chotenthetsera kutentha kwambiri, chotenthetseranso ndi mapaipi ena ndi zida zina zotenthetsera kwambiri komanso zotenthetsera kwambiri. Chimapangidwa ndi chitsulo cha kaboni chapamwamba kwambiri, chitsulo chomangira cha alloy ndi chitsulo chosapanga dzimbiri chosagwira kutentha pogwiritsa ntchito chotenthetsera (extrusion, expansion) kapena chozizira (drawing).