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Soft Magnetic Alloys

FeNI Soft Magnetic Alloy

Rely on FeNI Soft Magnetic Alloy for exceptional heat and corrosion resistance across demanding environments.

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High permeability and low energy loss for efficient electromagnetic applications.

Fe-Ni Soft Magnetic Alloy is designed for efficient magnetic performance, offering high permeability, low coercivity, and low core losses. It is widely used in electrical and electronic applications such as transformers, inductors, relays, and magnetic shielding, where stable and reliable magnetic properties are essential.

Ingot Manufacturing Process

Melting of virgin elements to make ingots of Stellite 6 Alloy by Vacuum Induction melting (VIM)

RFQ from Customer

Alloy chemistry and ingot specifications are finalized as per application requirements.

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. With online temperature, Spectro, and oxygen data, we meticulously control melting and refining to achieve the specified ingot composition.

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.

Properties

Exceptional heat tolerance, stress durability, and chemical degradation resistance

Performs under pressure—resistant to saline, heat, and mechanical stress in critical environments.

Alloy

Mechanical properties*

PML alloy: as cast*

PML FeNi Alloys

 

 

 

 

*Typical

Vickers Hardness (HV)

150 - 220HV

 

Tensile Strength Ultimate (UTS)

400 - 600MPa

 

Tensile Strength Yield (YS)

-

 

Young’s Modulus (E)

-

 

Elongation of Break

-

 

Reduction of Area

-

Process Capability

Precision melting, alloy control, and vacuum casting for consistent, high-performance results.

Custom ingot shapes and batch sizes tailored to exact customer specifications.

 

Input Batch size

Output

Alloying 

Elements

Chemistry tolerance

Impurities Max

30 kgs to 600 kgs

Ingot of 

required 

shape as per 

customers requirement

Si,Mn

+/- 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

Image Text Section

Ensuring material integrity with 100% PMI testing via our precise XRF analyser.

Chemical analysis performed using Ametek Spectromaxx.

Technical Specifications

Powering Your Success with Precise, Reliable Specs

Engineered to meet demanding specs with consistent quality and adaptable performance.

Elements

Range (Min -Max%)

 

 

 

FeNi42

FeNi50

FeNi80

Nickel

41.50- 42.50

49.00-49.50.50

79.00-81.50

Carbon

0.00 - 0.05

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

Trust, Reliability & Quality

With over six decades of expertise, PML delivers high-performance component technologies and precision solutions trusted across critical industries.

ISO 45001

ISO 45001

Occupational Health and Safety (OH&S) management systems

ISO 14001

ISO 14001

Environmental Management Systems (EMS)

ISO 9001

ISO 9001

Quality Management Systems (QMS)

IATF 16949

IATF 16949

International Standard for Automotive Management Systems

AS 9100

AS 9100

Aerospace Quality Management System (QMS)

Frequently Asked Questions

A super alloy is a high-performance material known for its exceptional mechanical strength, resistance to high temperatures, corrosion, and oxidation. These alloys are predominantly used in extreme environments such as aerospace, automotive, power generation, and chemical processing industries.

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Pioneering cutting-edge technology to develop reliable, high-performance magnetic components and engineering solutions.