Talk:Armor/@comment-49.48.241.177-20160217173819/@comment-665695-20160221214326

We've known since long before Specters ever existed that Warframes were Alloy Armor and not Ferrite Armor... in PvE. We've also known that they're Ferrite in PvP, but PvP has been so irrelevant for most of the game's lifespan that no one ever cared enough to put that information into this page. You're justified in having your viewpoints, as we should have written that into the article.

Though, in what mission did you test this self-damage? If it was in a PvE mission, you might have just discovered that any damage inflicted to a player by a player treats the armor as Ferrite regardless of the mission type.