Production according to Standards

               

1J22  is an iron-cobalt-vanadium soft magnetic alloy with high saturation magnetic induction. Among the existing soft magnetic materials, this alloy has the highest saturation magnetic induction (2.4T), high DC permeability, and a high Curie point (980℃). ), the saturation magnetostriction coefficient is the largest (60～100×10-6), at the same time it has a lower DC coercivity and a lower AC iron loss. Due to the high saturation magnetic induction, the volume of the motor can be significantly reduced when the motor of the same power is made, and when it is used as an electromagnet, it can produce a large attracting force under the same cross-sectional area. Due to the high Curie point, it can continue to work in a higher temperature environment where general soft magnetic alloys cannot work normally, and can maintain relatively good magnetic properties. It is worth noting that the alloy has a low resistivity (0.27μΩ·m) and is not suitable for use at high frequencies, and because of its high cobalt content (50%), it is expensive, easy to oxidize, and has poor plasticity.

1J22 application range

Due to its large magnetostrictive coefficient, 1J22 is extremely suitable for magnetostrictive transducers, with high output energy and high working efficiency. It is suitable for light and small aviation and aerospace electrical components, such as microelectronic rotors, Electromagnet pole heads, relays, transducers, etc. Therefore, this material is widely used in the aerospace field as an armature punch of aerospace synchronization and torque motors.
Similar grades: AFK502 (France), 49КФ (Russia), Permendur (UK), Supermendur (US), HiperCo50 (US)

1J22 process performance

1.1 J22 alloy can be processed into thin ribbons and filaments after rapid quenching at about 880°C. The ribbons and filaments can be punched, wound or processed into various shapes of components.

2.1J22 alloy hot rolled (forged) material, cold drawn wire material and strip material can be cut and ground. When the alloy is processed into components and subjected to the final heat treatment of slow cooling, the plasticity is very poor, and it can only be slightly ground.
 

Density (g/cm3)	Resistivity  (ΜΩ•m)	Curie point  (℃)	remanence  (T)	Yield Strength (MPa)	Tensile strength  (Mpa)	Elongation (%)	Elastic Modulus Ksi	Magnetostriction coefficient
8.2	0.4	980	1.45	1280	1340	1	3x103	60x10-6

Product form	Magnetic induction intensity at different magnetic field strength (A/m)/T						Coercivity Hc/(A/m)
	B400	B800	B1600	B2400	B4000	B8000
	≥						≤
Cold rolled strip	1.6	1.8	2	2.1	2.15	2.2	128
Wire, forged (rolled) material	...	...	...	2.05	2.15	2.2	144

Temperature		Coefficient of expansion
68°F	20°C	-6/°F	10-6/℃
392	200	5.28	9.5
752	400	5.61	10.1
1112	600	5.83	10.5
1472	800	6.28	11.3

Form	Specification/mm	Delivery status
Bar	8.0-30.0	Hot rolled
	30.0-180.0	Hot forging
Plate	3.5-30.0	Hot rolled
	30.0-40.0	Hot forging
Strip	0.05-1.0	Cold rolled