Chemical composition
Ni57.5-59.5、Fe：balance、C：≤0.03、P≤0.015、S：≤0.015、Mn：0.60、Si：≤0.25.
Iron and nickel soft magnetic combination alloy
Grade：1J46,1J50,1J54,1J76,1J77,1J79,1J80,1J85,1J86,1J34,1J51,1J52,1J65,1J66, 1J67,1J83,1J403.
Standard:GBn198-88.
Used：Most small transformers, used for weak magnetic or medium magnetic field work, pulse transformers, relays, transformers, magnetic amplifier, electromagnetic clutches, choke cores and magnetic shielding.
2.magnetic temperature compensating alloy
Grade:1J30,1J31,1J32 ,1J33,1J38.
Standrd:GB/T15005-94.
Used:Magnetic split compensation elements in electromagnetic circuits and permanent magnet circuits.
3.anticorrosion soft alloy
Grade:1J36,1J116,1J117.
Standard:GB/T14986-94.
Used:Electromagnetic devices operating in oxidative media and hydrazine media.
4.High saturation magnetic induction strength soft magnetic alloy
Grade:1J22
Stanadrd:GB/T15002-94.
Used:Electromagnet base head, telephone headset vibrating film, torque motor rotor.
5.High hardness high resistance high magneto alloys.
Grade:1J87,1J88,1J89 ,1J90,1J91.
Standard:GB/T14987-94
Used：Used to make tape recorder and tape machine magnetic head chip and micro-special motor transformer, sensors, magnetic amplifier and other high-frequency inductance element iron core