FeSi
FeSi (Iron Silicon) alloy powder is commonly & economically produced by atomization method. Owing to its high saturation flux density, low iron loss, good soft magnetic properties, relatively low cost, high production efficiency it is widely used in the field of magnetic materials, especially in powder metallurgy soft magnetic composite materials (SMCs). Its core advantage lies in the ability to flexibly balance magnetic properties and losses by adjusting silicon content and powder particle size, making it suitable for various application scenarios ranging from traditional power equipment to 3C chargers, new energy vehicles, charging piles, photovoltaic energy storage systems, and more.
Key word:
Category:
Molding Choke Powders
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Core Characteristics
- Stable composition, low oxygen content:
- High sphericity, good flowability
- Stable chemical properties:
- Superior soft magnetic properties:
Applications
Soft Magnetic Cores, Molding Chokes
Components
- PFC inductors, PVinverters
- UPS power supplies; New energy vehicle motors,
- Charging pile inductors,High-frequency motors, sensors
- EMI shielding materials.
Chemical Composition (wt%)
|
Element |
Si |
Others |
Fe |
|||
|
O |
C |
P |
S |
|||
|
Content (wt%) |
3 – 6.5 |
≤0.05 |
≤0.03 |
≤0.02 |
≤0.01 |
Bal |
Gas FeSiTypical Properties
|
Properties |
App. Density (g/cm3) |
Tap Density (g/cm3) |
Flowability (s/50g) |
Laser Particle Size (µm) |
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|
D10 |
D50 |
D90 |
||||
|
Scope |
4.2 – 4.5 |
4.7 – 5.0 |
≤25 |
3 - 6 |
8 – 13 |
20 - 28 |
|
Test Standard |
ISO3923-1:2019 |
ISO3953:2011 |
ISO4990:2018 |
ISO13320:2022 |
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