Sered ngati machubu a fumace, machubu osinthira kutentha ndi mapaipi mumafuta amafuta ndi zoyenga.
Amagwiritsidwa ntchito popanga mapaipi amadzi oziziritsidwa ndi madzi, mapaipi amadzi otentha, mapaipi a nthunzi otentha kwambiri, mapaipi otenthetsera kwambiri opangira ma boiler a locomotive, mapaipi akulu ndi ang'onoang'ono a utsi ndi mapaipi a njerwa, ndi zina zambiri.
Chitsulo cha Carbon Ctructure chapamwamba kwambiri; Structural Alloy Steel; Chitsulo Chosagwira Kutentha Kwambiri