1J22 has high saturation magnetic induction intensity; It is suitable for the manufacture of aircraft and instrument components requiring small volume and light weight. Among the existing soft magnetic materials, the alloy has the highest saturation magnetic induction intensity (2.4T), the Curie point is also very high (980℃), and the saturation magnetostriction coefficient is the largest (60 ~ 100×10-6). Due to the high saturation magnetic induction intensity, when making a motor with the same power, the volume can be greatly reduced, and when making an electromagnet, a large suction force can be generated under the same cross-sectional area. Due to the high Curie point, the alloy can work at higher temperatures where other soft magnetic materials have been completely demagnetized, and maintain good magnetic stability.