Magnetic material containing Fe-B-Co-R wherein R constitutes R.sub.1 and R.sub.2, with R.sub.1 comprising at least one of the rare earth elements selected from the group consisting of Neodymium (Nd) and Praseodymium (Pr), with R.sub.2 comprising at least one of the rare earth elements selected from the group consisting of Dysprosium (Dy) and Terbium (Tb), and an admixture of M, which constitutes M.sub.1 and M.sub.2, M.sub.1 comprising at least one of the elements selected from the group consisting of Aluminum (Al), Niobium (Nb), and Chromium (Cr), and M.sub.2 comprising at least one of the elements selected from the group consisting of Titanium (Ti), Hafnium (Hf), Zirconium (Zr), Vanadium (V), and Tantalum (Ta), said magnetic material also containing Uranium (U) and having the following relative proportion of components, in atomic %:
- at least one of the rare earth elements selected from the group consisting of Neodymium and Praseodymium 12.0-17.0;
- at least one of the rare earth elements selected from the group consisting of Dysprosium and Terbium 0.1-5.0;
- at least one of the elements selected from the group consisting of Aluminum, Niobium, and Chromium 0.5-4.0;
- at least one of the elements selected from the group consisting of Titanium, Hafnium, Zirconium, Vanadium, and Tantalum 0.1-1.5;
- Cobalt 2.0-6.0
- Boron 6.5-8.5
- Uranium 0.05-1.5
- Iron remainder.