دوام استاندارد بالا 904l
904L, and this material is normally welded using a filler metal of the same composition as the base metal and can even be welded without filler metal. The welding consumables for 904L are 20 25 CuL covered electrode and 20 25 CuL wire. Machining The cold work hardening rate of Alloy 904L makes it less machinable than 410 and 304 stainless steels.