Board Thread:General Discussion/@comment-70.50.115.121-20130731034811/@comment-84.100.190.194-20131223150401

The weapon main page (http://elderscrolls.wikia.com/wiki/Weapons_%28Skyrim%29) mentions "daedric" as the required smithing perk.

... So the Wiki page is probably wrong, giving what you're encountering. Maybe not updated after a patch changed the required perk ?