Permendur 49

Cobalt Iron Magnetic Alloy / 1J22 is also known as Supermendur,, Permendur, Permendur 2V,50K(Russia),Vacoflux 50, Permendur 49,Chinese 1J22,etc. Usage: Have a high saturation magnetic induction;this products are applicable to manufacturing aircraft and instrumentation components which have the small sizes and light weight. Among Soft magnetic materials in the current saturation of the alloy ,this alloy has the maximum magnetic induction (2.4T), Curie point is also high (980 ) and the largest saturation magnetostriction coefficient (60 100 × 10-6). Due to the high saturation magnetic induction, it can greatly reduce the volume when you produce the same electric powers electromotor;when it is used as electro-magnet it will produce large force at the same section. Due to the high Curie point, the alloy can be worked in high temperature and maintain good magnetic stability which can make other soft magnetic materials have Demagnetization Usage field: 1.Components of aviation and spaceflight 2.Tiny rotors of electromotor,pole of electro-magnet,relays ,exchanging energy machines and so on. 3.Diaphragms of phones and earphone (1)Grade and Chemical CompositionGradeChemical Composition(%)C≤Mn≤si≤P≤S≤Cu≤Ni≤C0VFe1J220.040.300.300.0200.0200.200.5049.0-51.00.80-1.80 (2)Physical PropertyGradeResistivity/(μΩ·m)Density/(g/cm3)Curie point/°CMagnetostriction Cofficient/(×10-6)Tensile Strength/MPaUnannealedAnnealed1J220.408.20980601001325490(3) Magnetic PropertyGradeTypeMinimum MagneticFlux Densityfor Different Magnetic Field Strengths (T)Coercive forceHc/(A/m)≤B400B500B160082400B4000B50001J22Cold rolled Strips1.61.82.02.102.152.2128Wires,Forgings,Billets,Bars2.052.152.0144 (4) Coefficient of Thermal Expansion TemperatureCoefficient68°F to20°C to10(-6)/°F10(-6)/°C392 752 1112 1472200 400 600 8005.28 5.61 5.83 6.289.5 10.1 10.5 11.3Note: The data in the table are for reference only.