Goods wagons of welded construction
Goods wagons of welded construction () were developed and built by the Deutsche Reichsbahn in Germany from 1933 to about 1945. With the introduction of welding technology in 1933 almost all wagon components were joined by welding and no longer by rivetting. This enabled goods wagons to be designed, for example, for higher speeds or for higher payloads through the use of different types of steel and other engineering changes, but their further development was so heavily influenced by the exigencies of the Second World War that, as early as 1939, the Deutsche Reichsbahn had to temper the design of goods wagons to the new economic circumstances. Because there were overlaps in the change from the Austauschbauart - goods wagons made with interchangeable components - to the new welded classes, the period of the changeover cannot be exactly defined. Several standard goods wagons and their classes are covered in other articles. Goods wagons built during the Second World War that were purely intended for military transport use, are covered under the article on Kriegsbauart - wartime classes. As early as 1921 the development of goods wagons in the German states began to distinguish between those without special features, that represented