Soft Magnetic Alloy | Magnetic Permeability Materials

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Soft magnetic materials are alloys with high magnetic permeability, low coercivity, and minimal energy loss during magnetization and demagnetization cycles. These properties make them ideal for applications involving alternating or fluctuating magnetic fields, such as transformers, motors, and inductors.

Available grades: 1J06, 1J12, 1J17, 1J18, 1J22, 1J30, 1J36, 1J38, 1J46, 1J50, 1J51, 1J54, 1J76, 1J77, 1J79, 1J80, 1J85, 1J87

Easily magnetized and demagnetized
Requires minimal energy to reverse magnetization
Minimal energy loss due to hysteresis and eddy currents
High saturation magnetic flux density, ensuring effective magnetic performance

Power generation & distribution: Transformer cores, stators, and rotors in generators
Consumer electronics: Magnetic shielding, inductors, and small transformers
Automotive: Electric vehicle motors, sensors, and inductive charging systems
Medical: MRI systems and other medical imaging devices
Aerospace: High-performance motors and actuators

Material	Nickel-Iron Alloy	Cobalt-Iron Alloy
Saturate Induction (Bs)	0.8-1.6 T	2.0-2.3 T
Initial Magnetic Permeability (μi)	10,000-100,000	1,000-5,000
Coercivity (Hc)	≤2 A/m	≤15 A/m
Hysteresis Loss (W/kg)	Very low	Medium

Hardness
Nickel-Iron Alloy	150-200 HV
Density
Nickel-Iron Alloy	8.1g/cm³
Cobalt-Iron Alloy	8.3g/cm³

Alloy Grades	Carbon (C)	Sulfur (S)	Phosphorus (P)	Manganese (Mn)	Silicon (Si)	Nickel (Ni)	Chromium (Cr)	Cobalt (Co)	Molybdenum (Mo)	Copper (Cu)	Aluminum (Al)	Niobium (Nb)	Iron (Fe)	Other Elements
	Not greater than
1J06	0.04	0.015	0.015	≤0.10	≤0.15	-	-	-	-	-	5.5-6.5	-	Rest	-
1J12	0.03	0.015	0.015	≤0.10	≤0.15	-	-	-	-	-	11.6-12.4		Rest	-
1J17	0.03	0.02	0.02	≤0.60	≤0.20	-	15.5-16.5	-	-	-	-	-	Rest	-
1J18	0.03	0.02	0.02	0.3-0.7	≤0.15	0.5-0.7	17-18.5	-	-	-	-	-	Rest	Ti.0.3-0.7
1J22	0.04	0.02	0.02	≤0.3	≤0.3	≤0.5	-	49-51	-	≤0.2	-	-	Rest	V.0.8-1.8
1J30	0.04	0.02	0.02	≤0.40	≤0.30	29.5-30.5	-	-	-	-	-	-	Rest	-
1J36	0.03	0.02	0.02	≤0.60	≤0.20	35.0-37.0	-	-	-	-	-	-	Rest	-
1J38	0.03	0.05	0.02	0.3-0.6	0.15-0.3	37.5-38.5	12.5-13.5	-	-	-	-	-	Rest	-
1J46	0.03	0.02	0.02	0.6-1.1	0.15-0.3	45.0-46.5	-	-	-	≤0.2	-	-	Rest	-
1J50	0.03	0.02	0.02	0.3-0.6	0.15-0.3	49-50.5	-	-	-	≤0.2	-	-	Rest	-
1J51	0.03	0.02	0.02	03-0.6	0.15-0.3	49-50.5	-	-	-	≤0.2	-	-	Rest	-
1J54	0.03	0.02	0.02	0.3-0.6	1.1-1.4	49.5-51	3.8-42	-	-	≤0.2	-	-	Rest	-
1J76	0.03	0.02	0.02	0.3-0.6	0.15-0.3	75.0-76.5	1.8-22	-	-	4.8-5.2	-	-	Rest	-
1J77	0.03	0.02	0.02	0.3-0.6	0.15-0.3	75.5-78	-	-	3.9-4.5	4.8-6.0	-	-	Rest	-
1J79	0.03	0.02	0.02	0.6-1.10	0.3-0.5	78.5-80.0	-	-	3.8-4.1	≤0.2	-	-	Rest	-
1J80	0.03	0.02	0.02	0.6-1.10	1.1-1.5	79.0-81.5	2.6-3.0	-	-	≤0.2	-	-	Rest	-
1J85	0.03	0.02	0.02	0.3-0.60	0.15-0.3	79.0-81.0	-	-	4.8-5.2	≤0.2	-	-	Rest	-
1J87	0.03	0.02	0.02	03-0.6	≤0.3	78.5-80.5	-	-	1.6-22	-	-	6.5-7.5	Rest	-

Electrical Resistivity
Nickel-Iron Alloy	50-60×10⁻⁶ Ω·cm