1J79 soft magnetic alloy

1J79 alloy is a high initial magnetic permeability alloy, second only to silicon steel sheet and electrical pure iron in terms of usage. Compared with other soft magnetic alloys, these alloys have high permeability and low coercivity at low magnetic fields, and some alloys have special applications with rectangular hysteresis lines, or very low residual magnetic induction and constant permeability.

The 1J79 alloy has good rust resistance and processing properties, and can be used to make components of extremely fine shape and size. Since the resistivity of this type of alloy is higher than that of pure iron and silicon steel sheet and is easily processed into thin strips, thin strips of a few microns or less are suitable for high frequencies of a few megahertz or less. The 1J79 alloy has the following properties. High saturation magnetic induction soft magnetic 1J79 iron-nickel alloy is a nickel alloy containing 79-80% has high initial permeability and maximum permeability and low coercivity, 1J79 saturation magnetic induction strength greater than 0.75T, initial permeability greater than 25mH/m, maximum permeability greater than 125mH/m, coercivity less than 2.4A/m Metallographic structure of 1J79: 1J79 alloy is austenitic organization 1J79 application areas of application. Used for making pulse transformers, high sensitivity relays, magnetic amplifiers, magnetic regulators, current transformers, iron cores for programmable telephones, electronic meter stepper motors, high precision meters, current resistors, magnetic shields, etc.