Soft Magnetic Alloys
Ni80Fe20 Soft Magnetic Alloy
High-permeability soft magnetic alloy with excellent EMI shielding and corrosion resistance for advanced electronic and power applications.
Superior Magnetic Shielding and Interference Protection
By combining 80% nickel with specialized iron purity, this alloy provides an exceptional barrier against stray magnetic fields in high-precision medical and aerospace electronics.
Ingot Manufacturing Process
Ni80Fe20 ingots are produced using Vacuum Induction Melting (VIM) to ensure precise composition, purity, and superior soft magnetic performance.
RFQ from Customer
Ni80Fe20 ingots are produced using Vacuum Induction Melting (VIM) to ensure precise composition, purity, and superior soft magnetic performance.
Alloy Design/Planning
As per customer requirements, 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.
Testing & Packaging
Each ingot undergoes full PMI verification and chemical analysis prior to dispatch for applications like MIM powders, hot/cold rolled strips, or forged components.
Testing & Packaging
Each ingot undergoes rigorous inspection, precision processing, and custom packaging according to the requirements.
Technical Specifications
Chemical Composition (Typical Ranges by Variant)
| Element | FeNi42 (%) | FeNi50 (%) | FeNi80 (%) |
|---|---|---|---|
| Nickel | 41.50–42.50 | 49.00–49.50 | 79.00–81.50 |
| Carbon | 0.00–0.050 | 0.00–0.030 | 0.00–0.030 |
| Silicon | 0.00–0.30 | 0.15–0.30 | 1.10–1.50 |
| Manganese | 0.00–0.80 | 0.30–0.60 | 0.60–1.10 |
| Chromium | 0.00–0.25 | - | 2.60–3.00 |
| Phosphorous | 0.00–0.020 | 0.00–0.020 | 0.00–0.020 |
| Sulphur | 0.00–0.020 | 0.00–0.020 | 0.00–0.020 |
| Iron | Balance | Balance | Balance |
| Oxygen | 0.00–0.010 | 0.00–0.010 | 0.00–0.010 |
| Nitrogen | 0.00–0.010 | 0.00–0.010 | 0.00–0.010 |
Properties
| Property | PML Ni80Fe20 (as cast)* |
|---|---|
| Vickers Hardness | 150–220 HV |
| Ultimate Tensile Strength (UTS) | 400–600 MPa |
| Yield Strength | - |
| Young’s Modulus | - |
| Elongation at Break | - |
*Typical values
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 | Cr, Si, Mn | ±0.5% (High %) ±0.3% (Low %) | Oxygen < 25ppm Hydrogen < 3ppm Nitrogen < 50ppm All other impurities < 50 ppm |
The Ultimate Magnetic Shielding Alloy
Ni80Fe20 is a soft magnetic alloy composed of ~80% Nickel and ~20% Iron, with trace additions of Chromium and Silicon for enhanced performance.
Applications
With over six decades of expertise, PML delivers high-performance component technologies and precision solutions trusted across critical industries.
1
Magnetic core materials (transformers, inductors)
2
Electromagnetic interference (EMI) shielding
3
Sensitive electronics (defense, aerospace, telecom)
4
Magnetic sensors and recording heads
5
Microwave & RF components
6
Automotive & aerospace motors and generators
7
Precision instruments & power control systems
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
It is used in transformer cores, inductors, EMI shielding, magnetic recording heads, and defense-grade electronic components.
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