It took me a while to find any semblance of reasonable information on this subject. I collect citadel blades and for some odd reason within the last year or so they have begun labeling their blades DNH7 instead of 1070/1075. It probably has to do with their main area of marketing being Europe. Basically DNH7 is AISI 1075 it is just the European system of measurement. Attached is a link to the equivalency chart.......its mostly in french but it still makes sense. http://www.eurotechni.fr.fm/
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