Abstract
Steel as one of the most traditional materials is the target of NIMS (National Institute for Materials Science, Japan) project. The usage of steel is various and abundant. Even a small amount of a decrease in environmental load related to steel service makes a significant progress in the global. Doubled strength and doubled service life are aimed at in the ULTRA STEEL project at NIMS. Materials design and methodology for these goals need new concepts in steel research and already five-year-attempts have been done with prominent results.
