An evaluation of the iron flow in Austria was executed at the RIC ESEE at the Montanuniversitaet Leoben within the context of the European network EIT RawMaterials. The main idea was to develop a system that visualizes the mass flow of iron and steel of Austria. To build up the system, it was essential to provide all necessary information regarding the production, consumption and inventory as well as information about the trading (including import and export) of semi-finished products, goods and scrap. The boundary conditions for the system were the national economics of Austria in the year 2010. The mass flow software STAN2 was used for visualization of the system. A main objective of the project was the calculation and visualization of the required iron scrap for the steel production in Austria. The influencing factors on the iron balance were identified and the question of the steady state of scrap return was answered.