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Simulation software dedicated to heat treatment processes

SIMHEAT® is the effective solution to simulate heat treatment processes of metallic alloy (including carbon steel and aluminium) and obtain true insights of workpiece distortion, residual stress and microstructural evolution.

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Case hardening




Annealing / Tempering


Controlled cooling






Artificial ageing

Perfectly dedicated to induction heat treating

Induction heat treatment simulation provides comprehensive information about temperature gradient from surface to core and also the location of areas where phase transformations occur. 

SIMHEAT® can monitor the impact of current frequency, coil geometry and even concentrators’ location within the heat affected zone. Material modelling considers electrical and magnetic properties that are temperature-dependent.

SIMHEAT® is perfectly dedicated to induction hardening with :

  • A multi-physics approach to capture ‘mechanical-electromagnetic-metallurgical’ phenomena

  • Monitor inductors & concentrators in motion to image rotating parts and induction equipment (e.g. case hardening of a crankshaft)

  • Up-to-date modelling of the generators that adjusts current intensity and frequency to maintain prescribed nominal power values

  • Prediction of heat affected zone and metallurgical transformations to identify austenized areas prior to quenching

  • Local mesh adaptation based on the temperature penetration depth

SIMHEAT_vilebrequin1Simulation of induction heat treatment of a crankshaft: temperature evolution

SIMHEAT_vilebrequin2Local phase transformation with appearance of austenite

A series of innovative functionalities

SIMHEAT_case_hardening_gear_teeth_hardnessSIMHEAT® has a lot of interesting features:

  • Full compatibility with JMatPro® database

  • Generation of Kirkaldy-based TTT diagram for low-alloy steel grades

  • Import tailored CCT diagram in text format

  • Carburizing: offset of transformation kinetics as a function of carbon rate

  • Age hardening based on Shercliff-Ashby models for heat-treatable aluminium alloys

  • Distortion models applicable to any kind of metal including aeronautic alloys

  • Material sensor tracking to plot characteristics over processing

  • Models for oxide scale thickness growth and spalling due to deformation
  • Exhaustive results: temperature, phase transformation, HV or HRC hardness, distortion, residual stress, yield stress, carbon and nitrogen concentration, etc.

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A fully integrated solution in the Transvalor suite


SIMHEAT® can be used as a standalone solution or in combination with Transvalor software. The perfect interoperability guarantees seamless results transfer from one solution to another.

It can be used with:

  • THERCAST®: for the simulation of foundry processes, continuous casting and ingot casting.

  • COLDFORM®: for the simulation of cold forming processes.

  • TRANSWELD®: for the simulation of welding processes and assembly.

  • DIGIMU®: for the simulation of microstructural evolution.

All the capabilities and functionalities of SIMHEAT® are also integrated in our FORGE® software, dedicated to the simulation of hot, semi-hot and cold forming processes.



And many more


SIMHEAT® for the automotive

Simulation is commonly used in the automotive industry to act on the final characteristics of parts (weight, ductility, hardness and resistance).


SIMHEAT® for aeronautics

To improve the performance and resistance of aeronautical parts, simulation makes it possible to predict metallurgical transformations of metals.


SIMHEAT® for the medical sector

Heat treatment processes can be simulated to optimize mechanical properties and ensure the safety of surgical implants during their application.

Case study NTN-SNR Roulements


Validate the induction hardening process for the manufacturing of steel bearing rings.


By considering the characteristics of the current generator, the software provides a major asset to precisely describe the entire process, from the induction heating up to the final quenching stage.


« The solution is predictive because the parameters of the generator are used as they are as input data in the simulation for predicting the metallurgical properties of the part. »

Victor   LEJAY, Process Development Engineer, NTN-SNR Roulements, France
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Competitive advantages

Clear and objective reasons to distinguish ourselves.


Predictive solution

Simulate all your thermal cycles thanks to models for heating, quenching, annealing / tempering, carburizing, nitriding, and controlled cooling. SIMHEAT® predicts phase changes, hardness, residual stresses and distortions in your parts.


TTT & CCT diagram generator

TTC and CCT diagrams are generated for low alloy steel grades based on their chemical composition and initial grain size.


Heat Transfer Coefficients identification

Thanks to inverse engineering the SIMHEAT® automatic optimization module, identify the precise values ​​of your process parameters.

Would you like a demonstration of SIMHEAT® software?