1J22 Permalloy Plate is an iron cobalt soft magnetic alloy containing 50% cobalt, 1.4% ~ 1.8% vanadium and iron. This alloy has the highest magnetic saturation strength (2.4T), extremely high Curie temperature (Tc=980 ℃) and the maximum saturation magnetostriction 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 |
1J22 Permalloy Plate Picture:
Soft magnetic alloy is suitable for transmitting tube, oscillating tube, pilot tube, transistor, sealed plug, relay shell and other electric vacuum devices. It has a certain linear expansion coefficient in the temperature range of 20 ℃ - 450 ℃, and can match with hard glass to seal firmly.