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Thermi-Lyon

THERMI-LYON is the world's first contract heat treatment facility. More than 60 years after its creation, this site has become the group's technological showcase.

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THERMI-LYON, a true technological showcase

Historically the group's first site, THERMI-LYON was created in 1960 to meet the needs of the Rhône-Alpine mechanical engineering industry.

Its high level of investment in human resources and technology has enabled it to extend its reach nationwide and internationally.

THERMI-LYON has played a major role in the development and industrialization of new heat treatment processes, and has won several MIDEST and A3TS innovation awards.

New processes have been deployed to improve the wear and galling resistance of stainless steels without compromising corrosion resistance: THERMI-SP® and THERMI-SNT®.

This powerful multi-treatment unit meets a wide range of customer requirements.

All equipment is linked by a supervision network, enabling continuous data acquisition and remote interrogation.

Address: 13 avenue du château de Gerland 69007 Lyon

1960

Creation date

1993

Date of first certification

Vacuum deposition specialist

THERMI-LYON has invested heavily in the development and mastery of DLC coating using PACVD technology.

An adapted environment (clean room) has made it possible to create a dedicated workshop for coating tribological layers.

Recently, THERMI-LYON developed a new range of DLC deposits based on PVD technology. This new development makes it possible to produce dehydrogenated carbon-based coatings for specific applications, depending on the working environment.

Since its creation, THERMI-LYON has adapted to different contexts and set up an organization to meet the requirements of the automotive, aerospace and medical markets, as well as the special machinery sector.

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vacuum cleanroom

Discover our solutions

Heat treatment
Heat treatment
parts partially coated with platin vacuum coating
Vacuum deposition
Vacuum deposition
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Site contacts

Delphine BEUCHER
Site Manager
04 78 61 66 22
Jean-Christophe GUERIN
Commercial
04 78 61 66 22
vacuum furnace at the thermi-lyon plant

    our thermi-lyon certifications

    ISO 13485
    ISO 13485 certification logo

    ISO 13485 establishes the criteria for the quality management system of an organization providing medical devices and related services in compliance with customer requirements and applicable regulations.

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    ISO EN 9100

    EN 9100 certification guarantees the quality management system requirements of the ISO 9001 series, and specifies additional definitions and notes for the aerospace and defense industry.

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    NADCAP Heat Treating
    logo nadcap heat treating

    NADCAP is an accreditation program for aerospace and defense subcontractors, designed to ensure the quality and reliability of products and services. This accreditation focuses on the special processes employed in the manufacture, testing and maintenance of components and systems used in these industries. Within the THERMILYON Group, NADCAP applies only to the special heat treatment process.

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    ISO 9001

    The ISO 9001 standard, widely recognized throughout the world, helps organizations improve their performance by meeting quality management system requirements and demonstrating a commitment to customer satisfaction.

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    Our latest news

    Discover the latest news on heat treatment and vacuum deposition.

    press-hardened part
    Focus on press hardening and its advantages
    Press-hardening serves a very specific purpose: to prevent part deformation during the rapid cooling phase induced by quenching. This method improves the performance of steels by giving them a martensitic structure, without the need for reworking. Designed for large production runs of parts with complex geometries, [...]
    January 30, 2025
    Focus on press hardening and its advantages
    martensitic-hardened metal parts
    Focus on martensitic hardening and its advantages
    The aim of martensitic hardening is to bring out a specific constituent in steels, called martensite, to make them harder and more resistant to wear and mechanical stress. It is one of the oldest known heat treatments of metals, and is still used today, thanks to its effectiveness and the [...].
    January 30, 2025
    Focus on martensitic hardening and its advantages
    heat-treated stainless steel tanks
    Thermochemical treatments for austenitic stainless steels
    Stainless steels are metals renowned for their anti-corrosion properties. Since its creation, THERMI-LYON has been offering its customers a range of thermochemical treatment solutions for austenitic stainless steels on a subcontracting basis. Over 60 years' experience in the treatment of stainless steels [...]
    December 19, 2024
    Thermochemical treatments for austenitic stainless steels
    Steel bars of various sizes, illustrating annealing and tempering processes
    Annealing and tempering: what are the differences and what are the different types of annealing?
    Annealing and tempering are among the heat treatment techniques applied mainly to steels (copper alloys, aluminum and titanium too). Both methods involve heating parts to precise temperatures, which vary according to the process, but do not serve the same purpose. There are two main types of annealing [...].
    December 10, 2024
    Annealing and tempering: what are the differences and what are the different types of annealing?
    stepped quenching diagram
    A closer look at step quenching and its advantages
    Staged quenching is based on cooling in stages. It includes a traditional initial heating phase, to reach a given temperature, but requires controlled cooling to be divided into several stages. This process offers a number of advantages, including a reduced risk of breakage or deformation, compared to quenching with [...].
    November 18, 2024
    A closer look at step quenching and its advantages
    Bonded varnish Complementary treatment to heat treatment
    Why choose glide varnish as a complementary treatment?
    Bonded coatings are an excellent way of improving the coefficient of friction of metal parts. Applied, possibly following a heat treatment operation, it ensures that the parts slide better together and reduces the risk of seizing. This technology is used particularly in the construction and screw industries, but also in the [...]
    November 18, 2024
    Why choose glide varnish as a complementary treatment?

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