What smithing perk corrosponds with Blades Armor so that I can double my effective smithing skill and make it legendary in quality? I assumed it would be Steel but that appears to not be the case.

Maybe Advanced Armors?

I upgrade my blade katana with a steel ignot, would assume the armor would be the same. Go to a workbench and see what you need to upgrade it.

I think he wants to know which perk he needs to be able to bumb that bad boy all the way to "Legendary". I'm thinking advanced armors perk too.