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Meet us at tradeshow: PackExpo 2026

Date: October 18-21, 2026 - Location: Chicago, Illinois USA

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Classic heat treatment for a variety of metals

Heat Treatment Taken Further with our solution

As done with the inventions for surface hardening of stainless steel and titanium, Expanite is capable and known for pushing the limits and finding solutions to many challenges within heat treatment.

Combining the classic heat treatment processes – typically performed in vacuum furnaces – with modern state-of-the-art equipment, in-depth understanding of materials, and a broad understanding of customer applications, Expanite can offer heat treatments  hardening a great variety of metals, including stainless steel, nickel-based alloys, and titanium.

The list of specialty heat treatment processes that Expanite can perform is principally never-ending; some of the major categories include case hardening, tempering, solution, and annealing treatments.


A Production Environment That Is Clean and in Compliance With All EU Regulations!

The benefits of using Expanite for the more classic heat treatments are many and stems from the company heritage where requirements for cleanliness, attention to detail, and customer interaction are far beyond that of classic carbon steel heat treatment in bulk.

Heat treatment and case hardening stainless steel
sustainable heat treatment and surface hardening

Expanite – Expanding the Possibilities in Heat Treatment

At Expanite, we view heat treatment not just as a process, but as a solution that can be tailored to meet the specific needs of every application.

Every heat treatment project at Expanite benefits from our integrated approach. Our team considers the material characteristics, the geometry of the parts, and the end-use requirements, ensuring that the chosen process is perfectly aligned with the intended application. 

Moreover, our modern facilities and ISO certified production processes allow us to maintain consistent quality across all treatments. By closely monitoring temperature, atmosphere, and timing, we ensure that every batch meets our strict standards and our customers’ expectations. This consistency is particularly valuable for industries where precision and durability are critical, such as medical devices, aerospace, and high-performance engineering components.

In essence, working with Expanite for heat treatment means gaining a partner that understands both the science and the practical demands of advanced manufacturing. Our solutions reduce risk, improve material performance, and ultimately help customers deliver superior products to their end users.

Whether it is classic heat treatment or advanced, tailored surface hardening, Expanite offers unmatched expertise, flexibility, and control.

Our heat treatment processes are supported by state-of-the-art monitoring and control systems, which allow us to track every step of the process in real time. This level of control ensures repeatable results, minimizes risk, and provides full traceability for quality assurance. For customers, this means peace of mind knowing that each component has been treated according to exact specifications.

Expanite’s approach to heat treatment is highly flexible. From small prototypes to large-scale production runs, we can adjust our processes to match your needs. Whether your project requires uniform hardness, selective hardening, or specialized tempering, our team can deliver tailored solutions. This flexibility ensures that Expanite is not just a service provider, but a partner in achieving your performance goals.

Our expertise is not limited to the technical process itself. At Expanite, we work closely with customers to understand their challenges and provide guidance on materials, treatments, and design considerations.

In essence, working with Expanite for heat treatment means reduced risk, improved material performance, and ultimately help customers deliver superior products to their end users.

Don´t Just Take Our Word for It!

Expanite has conducted several certified ASTM tests  documenting superior improvement in wear, galling and corrosion resistance using the Expanite heat treatment solutions. Click below for more:

Documented performance evidence

Test Results after Expanite treatment
TestAlloyExpanite ProcessResult

Martensitic

SuperExpanite

Results show a 47.5× reduction in wear rate with SuperExpanite-treated 1.4021 stainless steel.
Wear track depth was reduced by approximately 4× compared to standard vacuum hardening.

Martensitic

ExpaniteHigh-T

Galling was eliminated up to 69 MPa contact pressure with Expanite High-T.
Compared to conventional vacuum hardening, up to 150× higher pressure was required before galling occurred.

Martensitic

ExpaniteHigh-T

Results show over 300× lower wear rate with Expanite High-T compared to conventional vacuum hardening.
Wear track depth was reduced by approximately 320×, demonstrating significantly improved durability.

Austentic 316L

SuperExpanite

Results show that SuperExpanite virtually eliminated galling in AISI 316L, even at contact pressures up to 276 MPa.
Untreated 316L exhibited severe galling at pressures as low as 7–14 MPa.

Austenitic 316L

SuperExpanite

Results show up to 130× lower wear rate with SuperExpanite-treated AISI 316L.
Wear track depth was reduced by up to 100× compared to untreated material.

Martensitic

SuperExpanite

Results showed no galling on SuperExpanite-treated 1.4021 stainless steel up to 552 MPa contact pressure.
Compared to conventional hardening, an 800× higher contact pressure was insufficient to induce galling.

Austenitic

ExpanitePureLow-T

Results show no galling on ExpanitePureLow-T treated 316L up to 552 MPa contact pressure.
Galling threshold was increased by at least 400× compared to untreated 316L stainless steel.

Austenitic

ExpanitePureLow-T

Results show over 592× lower wear rate with ExpanitePureLow-T treated 316L stainless steel.
Wear depth was reduced by approximately 95× compared to untreated material.

Austenitic

SuperExpanite

Corrosion testing shows significantly improved pitting resistance with SuperExpanite-treated austenitic stainless steel.
Surface treatment increased pitting resistance potential and provided a more stable passive corrosion layer.

Surface Hardening Expert - contact Expanite

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