The ship's armored belt consisted of Krupp cemented steel that was thick in the central citadel that protected the propulsion machinery spaces and the ammunition magazines, and was reduced to forward and aft. In the central portion of the ship, horizontal protection consisted of a deck, which was reduced to on the bow and stern. The main battery turrets had of armor plate on the sides and on the roofs, while the casemate guns had of armor protection. The sides of the forward conning tower were also 30 cm thick.
