Alloy irinjẹ iru irin alloyed pẹlu ọpọlọpọ awọn eroja bii molybdenum, manganese, nickel, chromium, vanadium, silicon, ati boron.Awọn eroja alloying wọnyi ni a ṣafikun lati mu agbara pọ si, líle, ati yiya resistance.Alloy, irin ti wa ni commonly lo fun CNC ẹrọawọn ẹya nitori agbara ati lile rẹ.Awọn ẹya ẹrọ aṣoju ti a ṣe lati irin alloy pẹluawọn ọpa, awọn ọpa,skru, boluti,falifu, bearings, bushings, flanges, sprockets, atifasteners.”