Alloy steel waa bir ka kooban walxo ay ka mid yihiin chromium, cobalt, iyo nikkel. Biraha daawaha waxaa ka mid ah bir kala duwan oo kala duwan, oo leh halabuur ka sarreeya xadka Si, Va, Cr, Ni, Mo, Mn, B, iyo C ee loo qoondeeyay birta kaarboon Marka la barbar dhigo birta kaarboon, birta daawaha waxay si degdeg ah uga falcelisaa farsamada
Sii akhri