 "U-432" was fitted with five torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one SK C/35 naval gun, 220 rounds, and a C/30 anti-aircraft gun.The boat had a complement of between forty-four and sixty.The submarine was laid down on 14 January 1940 at Schichau-Werke in Danzig (now Gdansk) as yard number 1473, launched on 3 February 1941 and commissioned on 26 April 1941 under the command of "Kapitänleutnant" Heinz-Otto Schultze.