The Alvensleben was a single ship class designed after Seydlitz. It featured a superior firepower with its 15"-guns.
Tech. data: length 193m, displacement 25.000 tons empty, 28500 tons max., prop 80000 hp, vmax 28,2 knots.
Arms: 3x2x38cm, 14x15cm, 12x8,8cm in casemats, 4x8,8cm aa 5x50cm torpedotube
Due to several technical problems the germans were glad the ship was stricken with the Washington treaty.