Iron Silicon (Ferrosilicon) Alloy Powder (Fe/Si)

Iron Silicon Alloy Powder Price & List

Spec.	Si Content	Shape	Available
FeSi3.5-ES001	3-4%	Spherical	D50 1.0-2.0 um
FeSi4.5-ES001	4-5%	Spherical	D50 1.0-2.0 um
FeSi6.5-ES001	6-7%	Spherical	D50 1.0-2.0 um
FeSi3.5-ES010	3-4%	Spherical	D50 10-15 um
FeSi4.5-ES010	4-5%	Spherical	D50 10-15 um
FeSi5.5-ES010	5-6%	Spherical	D50 10-15 um
FeSi6.5-ES010	6-7%	Spherical	D50 10-15 um
FeSi3.5-FS025	3-4%	Spherical	D50 20-30 um
FeSi4.5-FS025	4-5%	Spherical	D50 20-30 um
FeSi5.5-FS025	5-6%	Spherical	D50 20-30 um
FeSi6.5-FS025	6-7%	Spherical	D50 20-30 um
FeSi3.5-MS120	3-4%	Spherical	-120 mesh
FeSi4.5-MS120	4-5%	Spherical	-120 mesh
FeSi5.5-MS120	5-6%	Spherical	-120 mesh
FeSi6.5-MS120	6-7%	Spherical	-120 mesh
FeSi-DS015045	3-7%	Spherical	15- 45 um
FeSi-DS015053	3-7%	Spherical	15 - 53 um
FeSi-DS045105	3-7%	Spherical	45 - 105 um
FeSi-DS045150	3-7%	Spherical	45 - 150 um
Customizable	Customizable	Spherical	Sieve as required

Note: We provide customized service. If you don't find the powder you want, please send us an email directly. We can customize it according to your requirements.

Iron Silicon Alloy Powder

Iron silicon alloy soft magnetic powder is one of the most widely used soft magnetic powder. Ferrosilicon soft magnetic powder has high resistivity and low eddy current loss. It is commonly used in motor, transformer, relay, transformer, switch and other products of iron core. 

Iron Silicon Alloy Powder Application

The iron silicon alloy powder we produced has good sphericity, uniform particle size distribution, good dispersion. The specific applications are as follows:
1. Iron core of motor, transformer, relay, mutual inductor, switch and other products;
2. Integrated inductor;
3. Magnetic powder clutch and brake.

Ultrafine Iron Silicon Alloy Powder

Ultrafine iron silicon alloy powder refers to a type of ultrafine powder with an average particle size below 10 um. Compared to coarse and fine powders, ultrafine ferrosilicon powder has better performance.

Spec.	Si Content	Shape	Available
FeSi3.5-ES001	3-4%	Spherical	D50 1.0-2.0 um
FeSi4.5-ES001	4-5%	Spherical	D50 1.0-2.0 um
FeSi6.5-ES001	6-7%	Spherical	D50 1.0-2.0 um
Customizable	Customizable	Spherical	Sieve as required

Iron Silicon Alloy Powder for Magnetic Core and Inductance

Due to its high sphericity and low impurity content, aerosolized soft magnetic alloy powder is more suitable for high-end magnetic powder cores and other occasions with high requirements for powder coating. It is widely used in PFC choke coils, reactors, APF inductors, and other devices.

Spec.	Si Content	Shape	Available
FeSi3.5-ES010	3-4%	Spherical	D50 10-15 um
FeSi4.5-ES010	4-5%	Spherical	D50 10-15 um
FeSi5.5-ES010	5-6%	Spherical	D50 10-15 um
FeSi6.5-ES010	6-7%	Spherical	D50 10-15 um
FeSi3.5-FS025	3-4%	Spherical	D50 20-30 um
FeSi4.5-FS025	4-5%	Spherical	D50 20-30 um
FeSi5.5-FS025	5-6%	Spherical	D50 20-30 um
FeSi6.5-FS025	6-7%	Spherical	D50 20-30 um
FeSi3.5-MS120	3-4%	Spherical	-120 mesh
FeSi4.5-MS120	4-5%	Spherical	-120 mesh
FeSi5.5-MS120	5-6%	Spherical	-120 mesh
FeSi6.5-MS120	6-7%	Spherical	-120 mesh
Customizable	Customizable	Spherical	Sieve as required

Spherical Iron Silicon Alloy Powder for 3D Printing / AM

Spec.	Si Content	Shape	Available
FeSi-DS015053	3-7%	Spherical	15 - 53 um
FeSi-DS045105	3-7%	Spherical	45 - 105 um
FeSi-DS045150	3-7%	Spherical	45 - 150 um
Customizable	Customizable	Spherical	Sieve as required

We can not only provide iron silicon alloy soft magnetic powder, but also provide integrated iron silicon insulation coating powder. If customers have specific requirements for Si content, we can also customize special ferrosilicon powder according to customers' needs.

Iron Silicon Alloy Powder Data Sheet

Spec	Production Process	O Content	Apparent Density	Mesh	Particle Size
FeSi-MI120	Water Atomization	<1500 ppm	> 3.6 g/cm3	-120	D50 30-55 um
FeSi-MS120	Gas Atomization	<300 ppm	> 4.4 g/cm3	-120	D50 40-65 um

Iron Silicon Alloy Powder Data for Magnetic Powder Core

Loss (mW/cm3)	DC Bias CHAR	Curie TEMP	SMI (Bs)	Permeability	TEMP CHAR (-55-125℃)	Frequency CHAR
800	65%	700℃	1.6T	26-90 μ	8%	6.5 MHz
Note:  1. Test Conditions: ① 50 kHz, 100 mt, ② 100 OE, 60 u, ③ ↓ 90% U;  2. CHAR: Characteristics, TEMP: Temperature, SMI: Saturation Magnetic Induction

Iron Silicon Alloy Powder Data for Magnetic Powder Core

Loss (mW/cm3)	DC Bias CHAR	Curie TEMP	SMI (Bs)	Permeability	TEMP CHAR (-55-125℃)	Frequency CHAR
600	75%	700℃	1.6T	26-90 μ	8%	6.5 MHz
Note:  1. Test Conditions: ① 50 kHz, 100 mt, ② 100 OE, 60 u, ③ ↓ 90% U;  2. CHAR: Characteristics, TEMP: Temperature, SMI: Saturation Magnetic Induction

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