Ausenitic formation na alloy f9 weld wuyan wuyewa yana ba da fitilun ƙa'idodi, har ma a Cryogenic. Waɗannan ƙarfi ne masu ƙarfi, masu ƙarfi, sassauƙa, sassauƙa, kiyayewa, daidaito mai kyau, kyakkyawan tsari, finafinan abu mai kyau, finafind ɗin gama gari.