Abstract
In order to do the sustainable supply of materials considered environmental problems in Earth, the necessary information in materials design and selection is discussed and the Materials-Risk-Index is proposed. The index consists of three kinds of risk index of the sustainable supply, environmental variation and toxicity of materials. In this report, the conceptual design of the database to store the information about three risk indexes was considered. If the database and mechanical properties databases described by XML were cooperated, it was introduced that the sustainability of supply and a guide of new material design in heat resistance alloys.