The ITER vacuum vessel is an innovating nuclear pressure vessel, weighting as much as the EIFFEL Tower, with sizes and tight tolerances never matched before. It is built from a specially developed stainless steel, making use of state of the art joining and NDT technologies. It is designed and built according to RCC-MR code, ESPN (French Nuclear Pressure Components) standard and French safety rules.
The AMW grouping, formed by Ansaldo Nucleare, as leader, Mangiarotti and Walter Tosto, was awarded (2010) the contract for the supply of five sectors of ITER Vacuum Vessel, the single biggest contract of Europe's in-kind contribution to ITER. The AMW grouping is a quite innovative form of cooperation, with a single strong management team which coordinates all the joint activities of the three partners, with the aim to allow for maximum synergies (and then optimal risk management) among the two manufacturing companies inside the grouping, which retain individual responsibility for the in-house manufacturing works. In the frame of the grouping , Ansaldo Nuclear is in charge of project management, engineering coordination, control and quality of process and products, material procurement management, manufacturing supervision, dimensional control implementation and NDE qualification.