... cracking. Designated as UNS N08367, alloy 25-6HN directly competes with Allegheny Ludlum alloy AL6XN ... performance, super-austenitic stainless steels, INCOLOY alloys 25-6MO and 27-7MO. Characteristics:PREN 48 ... . in 2 in. or 50mm or 4D, min., %R/A HardnessAnnealedTypical107 KSi55 KSi48Rb 90 D- ... drilling - 100 SFMSide and Slot Milling : Roughing - 0.25" depth - 0.007"/tooth feed - 125SFM Finishing - ...