Why Fe91.6Co8.4 Alloy Powder Is a Core Material for Magnetic Precision Applications

Published by HUAXIAO TECH manufacturer

Fe91.6Co8.4 alloy powder is a high-saturation soft magnetic material known for its excellent permeability, high Curie temperature, and outstanding frequency response. It is widely used in aerospace, high-frequency transformers, magnetic sensors, and precision inductors.

Outstanding Magnetic Performance

The high iron content (91.6%) combined with 8.4% cobalt creates an alloy with:

• High magnetic saturation flux density (Bs), ideal for strong magnetic fields

• Low coercivity, minimizing hysteresis loss

• Superior permeability, ensuring rapid magnetic response

These properties make Fe91.6Co8.4 especially suitable for compact, high-performance electromagnetic components.

High Thermal Stability and Curie Temperature

This alloy maintains stable magnetic behavior under thermal and electrical loads:

• Curie temperature above 950°C

• Stable performance in high-temperature environments

• Low core loss at high frequencies

It ensures consistent operation in demanding applications such as radar, aviation electronics, and high-speed power converters.

Compatibility with Advanced Manufacturing Processes

Fe91.6Co8.4 alloy powder is engineered for advanced powder metallurgy and additive manufacturing (AM):

• Spherical shape with narrow particle size distribution

• Excellent flowability for laser powder bed fusion (LPBF)

• High green density for metal injection molding (MIM)

Application Scenarios

• Aerospace-grade magnetic cores

• Pulse transformers and high-frequency inductors

• Precision sensors in medical and defense electronics

• Components in magnetic levitation and actuators

Benefits Summary

• High magnetic saturation and low loss

• Excellent temperature stability

• Optimized for 3D printing and MIM processes

• Stable microstructure for long-term reliability

Frequently Asked Questions (FAQ)

Q1: Is Fe91.6Co8.4 suitable for AM or only PM?
A1: It is compatible with both additive manufacturing and conventional powder metallurgy, depending on the particle size selected.

Q2: What is the typical particle size range?
A2: 15–53 μm for LPBF, and 5–25 μm for MIM applications.

Q3: Is the powder passivated for storage?
A3: Yes, HUAXIAO TECH supplies passivated powder to prevent oxidation and ensure storage stability.

Conclusion

Fe91.6Co8.4 alloy powder provides a unique combination of soft magnetic properties, thermal stability, and manufacturing compatibility. It is an ideal material for advanced magnetic components that demand high precision and durability.

For technical support or to request a sample, contact HUAXIAO TECH — your trusted manufacturer of high-performance alloy powders.