Steel Plate Armor

Steel Plate Armor is a heavy armor set that is available in The Elder Scrolls V: Skyrim. It is available for crafting under the steel category at a forge after obtaining the Advanced Armors perk, but can appear as leveled quest awards and loot near level 20. It provides more protection than dwarven armor, but slightly less than orcish.

Although this is a heavy armor you need the advanced armors perk on the left hand side of the smithing tree in order to craft it (It is unclear why this is so since the left hand side is dedicated to light armor).

Originally this armor was to be called Nord Plate Armor, as seen in the book of concept art which came with the collectors version of the game.