Soft Magnetic Alloys
FeCo Alloy
High-saturation magnetic alloy for precision applications in motors, sensors, actuators, and aerospace components.
The Pinnacle of Magnetic Saturation
Our high-performance Iron-Cobalt alloys deliver the highest magnetic flux density available, enabling extreme power density and weight reduction.
Ingot Manufacturing Process
FeCo alloy ingots are produced using high-purity raw materials in Vacuum Induction Melting (VIM) furnaces to ensure precise composition and consistent magnetic performance.
RFQ from Customer
Production plans are tailored to meet the customer’s application and specification needs, including custom ingot geometries.
Alloy Design/Planning
As per customer requirement mould design carried out and planned for charge preparation, charge sequences in VIM furnace. Careful selection of raw materials are the prime factor to achieve specified chemistry of an alloy.
Alloy Melting by VIM
Virgin elements are charged into the VIM furnace either in air or under vacuum, with precise adjustments made for trace element additions during melting.
Process & Quality Control
The melt is poured under vacuum into precision-engineered molds using an automatic tilting mechanism for defect-free solidification.
Primary Finishing
Post-casting processes include surface treatment, cropping, and preparation of ingots for downstream processing.
Testing & Packaging
Every batch is tested for chemical composition by Spark- OES / wet analysis / Gas analysis, and physical compliance as per customer specification before secure packaging.
Chemical Composition (Typical Ranges)
Technical Specifications
| Element | Composition Range (wt%) |
|---|---|
| Carbon | 0.00 – 0.01 |
| Manganese | 0.00 – 0.05 |
| Niobium | 0.00 – 0.01 |
| Vanadium | 1.90 – 2.00 |
| Cobalt | 48.50 – 50.00 |
| Iron | Balance |
Properties
Custom ingot shapes and batch sizes tailored to exact customer specifications.
| Property | PML FeCo Alloy (as cast)* | After Heat Treatment* |
|---|---|---|
| Brinell Hardness (HB) | ≥190 | 170–230 |
| Ultimate Tensile Strength (UTS) | 345–480 MPa | 550–750 MPa |
| Yield Strength (YS) | 210–345 MPa | - |
| Young’s Modulus (E) | 40% | - |
| Elongation at Break | - | - |
*Typical values; dependent on processing conditions
Process Capability
Ensuring material integrity with 100% PMI testing via our precise XRF analyser.
| Input Batch Size | Output Form | Alloying Elements | Chemistry Tolerance | Impurity Levels |
|---|---|---|---|---|
| 30 kg to 600 kg | Custom ingot shape | Co, V | ±0.5% (High %) ±0.3% (Low %) | Oxygen < 25ppm Hydrogen < 3ppm Nitrogen < 50ppm All other impurities < 50 ppm |
Peak Magnetic Saturation Alloy
FeCo is a soft magnetic alloy primarily composed of cobalt and iron. It exhibits: Exceptional saturation magnetization, High permeability at elevated temperatures, Excellent magnetic flux conduction, thermal stability and corrosion resistance.
Applications
FeCo alloys are used in high-performance electromagnetic and structural components, especially where high magnetic saturation is needed:
1
Magnetic recording materials (hard drives, data storage)
2
Motors and actuators (aerospace, automotive)
3
Sensors and transducers (industrial and defense)
4
Magnetic shielding (EMI-sensitive equipment)
5
Military & space-grade magnetic assemblies
6
Electric propulsion systems
7
High-performance transformers and magnetic cores
Trust Reliability & Quality
With over six decades of expertise, PML delivers high-performance component technologies and precision solutions trusted across critical industries.
ISO 45001
Occupational Health and Safety (OH&S) management systems
ISO 14001
Environmental Management Systems (EMS)
ISO 9001
Quality Management Systems (QMS)
IATF 16949
International Standard for Automotive Management Systems
AS 9100
Aerospace Quality Management System (QMS)
Frequently Asked Questions
Hiperco 50A is a proprietary version of a FeCo alloy with vanadium added for improved magnetic and mechanical properties. Our FeCo-V alloy is equivalent in performance and composition.
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