Soft Magnetic Alloys
Fe50Ni50 Soft Magnetic Alloy
High-saturation, soft magnetic alloy with superior corrosion resistance for demanding magnetic and marine applications.
The High-Flux Standard for Magnetic Precision
This specialized soft magnetic alloy combines high saturation induction with exceptional permeability to ensure maximum efficiency in electromagnetic systems.
Ingot Manufacturing Process
Fe50Ni50 ingots are manufactured in-house via the Vacuum Induction Melting (VIM) process using virgin raw materials and trace element controls.
RFQ from Customer
We start with customer-specific batch inputs and target compositions, adjusting for custom geometry and magnetic behavior.
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. Trace alloying elements like Si and Mn are charged under full vacuum without breaking the melt integrity, ensuring homogeneous mixing.
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 Range)
Technical Specifications
| Element | Range (wt%) |
|---|---|
| Nickel | 49.00 – 50.50 |
| Carbon | 0.00 – 0.030 |
| Silicon | 0.15 – 0.30 |
| Manganese | 0.30 – 0.60 |
| Phosphorous | 0.00 – 0.020 |
| Sulphur | 0.00 – 0.020 |
| Iron | Balance |
| Oxygen | 0.00 – 0.010 |
| Nitrogen | 0.00 – 0.010 |
Properties
Fe50Ni50 delivers a saturation magnetization of 1.6T, superior to most silicon-iron alloys, with exceptional incremental permeability across a wide range of polarizing fields.
| Mechanical Properties* | As Cast | After Heat Treatment |
|---|---|---|
| Vickers Hardness | 203 HV | - |
| UTS (MPa) | 780 MPa | - |
| Yield Strength | - | - |
| Young’s Modulus | - | - |
| Elongation | - | - |
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 | Ingot as per customer spec | Si | +/- 0.5 % for Higher level % (Above 2 digit) and +/- 0.3 % for lower level % (Single digit) | Oxygen < 25ppm Hydrogen < 3ppm Nitrogen < 50ppm All other impurities < 50 ppm |
High-Saturation Alloy for High-Performance Magnetics
Fe50Ni50 is a specialized nickel-iron soft magnetic alloy that combines high magnetic flux density with exceptional permeability and corrosion resistance.
Benefits
With over six decades of expertise, PML delivers high-performance component technologies and precision solutions trusted across critical industries.
1
Flexible batch sizes
2
Consistent, reproducible high quality
3
Minimal gas impurity levels
4
Evaporation of volatile non-ferrous impurities (Sn, Zn, Pb, Sb)
5
Reduced non-metallic inclusions
6
Ready-to-use ingots for powder metallurgy (MIM), strip production, rolling, forging, etc.
Applications
Fe50Ni50 Soft Magnetic Alloy is engineered for both magnetic performance and environmental resilience, ideal for:
1
Transformer cores
2
Relays and magnetic chokes
3
Small motors
4
Marine components and offshore structures
5
Electromagnetic shielding in sensitive electronics
6
Aerospace and automotive engine parts
7
Alloying agent for corrosion-resistant steels
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
Fe50Ni50 is ideal for electromagnetic applications requiring high saturation, such as transformer cores, relays, motors, and EMI shielding.
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