AL-6XN alloy has exceptional resistance to chloride corrosion, pitting, crevice corrosion, and stress corrosion cracking. It has excellent corrosion resistance to various acids, alkalis, and salt solutions.

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AL-6XN alloy is identified by the Unified Numbering System (UNS) designation of N08367. It is an austenitic stainless steel alloy with high nickel (24%), chromium (22%), molybdenum (6%), and nitrogen (0.18%) content and is commonly known as super austenitic stainless steel (alloys such as 254 SMO and 904L also fall under the super austenitic designation). AL-6XN alloy has a face-centered cubic crystal structure similar to other austenitic stainless steels such as 304L and 316L. The alloy is non-magnetic, and its magnetic permeability remains low even after severe cold forming.