近年来，对于不锈钢不仅仅在耐热性上的要求越来越高，随着电子机器和超导技术的发展，作为常温或超低温用无磁材料、转矩传感器用轴件材料，线性马达车辆用构件，在核磁共振（ＮＭＲ）装置磁场中以及在有效地利用磁致伸缩的装置中作为结构材料的需求也在日益增长，在许多应用? In recent years, not only for stainless steel on the heat resistance of the higher and higher, with the development of electronic machinery and superconducting technology, as room temperature or cryogenic non-magnetic materials, torque sensor shaft material, linear motor vehicles There is also a growing demand for structural materials as components, magnetic fields in nuclear magnetic resonance (NMR) devices, and in devices that make effective use of magnetostriction, in many applications.