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Hunan Gaopin Advanced Materials Technology Co., Ltd.

Advanced Metal Powders

Featuring high sphericity, low oxygen content, and uniform composition, achieve core applications in multiple high-end industrial fields.

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Metal Powders

Soft Magnetic Powders

Gas atomized soft magnetic alloy powders feature high purity, fine spherical particle size and uniform composition, making it particularly suitable for high-end industrial application field like magnetic powder cores that have stringent requirements on powder insulation, they are widely used in PFC choke coils, reactors, APF inductors, and other components.

Typical Properties

Uniform chemical composition
Low oxygen content
Good temperature stability
High tap density with low forming pressure
High permeability, low loss, high efficiency,and excellent magnetic performance
Customizable on request

Principal Powder Grades

Alloy Powder	Chemical Composition (wt%)									Perm. (μ)
Alloy Powder	Si	Al	Cr	Ni	C	O	P	S	Fe	Perm. (μ)
FeSi	3-6.5	-	-	-	≤0.03	≤0.05	≤0.02	≤0.01	Bal	30-60
FeSiAl	8.5-9.9	5.0-6.0	-	-	≤0.03	≤0.05	≤0.02	≤0.01	Bal	30-60
Flat-FeSiAl*	9.4-10.0	5.5-6.1	-	-	≤0.03	≤0.05	≤0.02	≤0.01	Bal	-
FeSiCr	4.5-6.5	-	4.5-5.5	-	≤0.03	≤0.05	≤0.02	≤0.01	Bal	35-60
FeNi	-	-	-	47-52	≤0.03	≤0.05	≤0.02	≤0.01	Bal	35-65
Alloy Powder	Chemical Composition (wt%)									Perm. (μe)
Alloy Powder	Si	Mo	Cr	Ni	C	O	P	S	Fe	Perm. (μe)
FeNiMo	-	1.8 – 4.0	-	79 -81	≤0.05	≤0.05	≤0.01	≤0.015	Bal	40-65
Frequently used specifications of particle sizes: D50: 14µm / 20µm / 22µm / 25µm / 30 µm

*Note:

Flat-FeSiAl series,or flaky FeSiAl, are flat soft magnetic alloy powders, also named as soft magnetic alloy electromagnetic (EM) wave absorbing powders.

Permeability (μe) was tested using a toroidal core with dimensions of OD14*ID8*H4mm.