Expansion alloy 1J85, also known as super permalloy, is a high-nickel iron alloy with extremely high permeability and extremely low coercivity. This alloy exhibits excellent magnetic shielding characteristics in low frequency and static magnetic fields, and is widely used in magnetic sensors, relays, transformers and other electronic devices that require high sensitivity. Because of its excellent magnetic properties, 1J85 alloy is particularly suitable for use in equipment requi
expansion alloy 1J85
Domestic and foreign approximate grades
- United States:Permalloy 85
- Germany:Vacoperm 85
- Japan:PC Alloy
- Russia:79 НМ
- England:Mumetal 85
chemical composition
1 J85 alloy is as follows:
-Nickel (Ni): approximately 81%
-Iron (Fe): balance
-Other elements: a small amount of molybdenum (Mo) and manganese (Mn)
physical properties
-Density: 8.75 g/cm & sup3;
-Curie temperature: 430°C
-permeability: Under low field conditions, the initial permeability exceeds 100,000
mechanical properties
-Tensile strength: about 450 MPa
-Yield strength: about 280 MPa
-Ductility: Good, suitable for cold working and forming
-Hardness: HV 150 - 200
Application areas
-Magnetic shielding: Used in environments that require high-precision magnetic shielding, such as laboratory equipment and high-precision electronic instruments.
-Transformers and inductors: Suitable for manufacturing high-frequency low-loss transformers and inductor core materials.
-Magnetic Sensors and Relays: magnetic sensing and signal control components for high sensitivity.
-Aerospace and Defense: Used in equipment and components that require minimal magnetic field interference.
Supply Specifications
-Shape: bar, plate, strip, wire, etc.
-size: customized according to customer needs
