1J22 Co50V2 Bar is a soft magnetic Fe-Co alloy containing 50% Co, 1.4% ~ 1.8% vanadium and Fe. The alloy has the highest magnetic saturation strength (2.4T), extremely high Curie temperature (Tc=980℃) and the largest saturation magnetostrictive coefficient (60×10-6).
| Element | Min | Max |
| Carbon | -- | 0.01 |
| Manganese | -- | 0.05 |
| Silicon | -- | 0.05 |
| Cobalt | -- | 48.75 |
| Vanadium | -- | 1.90 |
| Iron | Bal | |
| Grade | U.K. | Germany | U.S.A. | Russia | Standard |
| 1J22 | Permendur | Vacoflux 50 | Supermendur HiperCo50 | 50КФ | GB/T15002-1994 |


Hiperco 50A alloy is a soft magnetic alloy primarily used as a core material in a core material in electrical equipment where high permeability values are required at very high flux densities. The magnetic characteristics of this alloy allow for weight reduction, a reduction in the number of copper turns and insulation of the final product compared to other magnetic alloys with lower permeability over the same field range.