With more than 60 years of experience developing thermochemical treatments, HEF is now the world leader in the field of liquid ionic nitriding. These technologies are continuously improved to meet the technical, economic, and environmental requirements of industrial sectors such as mobility, construction, defense, and decarbonized energy. Thanks to our international network, HEF makes its technologies—and their remarkable capabilities—available worldwide.
HEF NA’s nitrocarburizing treatments are patented and marketed under the names ARCORTM, SURSULFTM, TENIFERTM, TUFFTRIDETM, MELONITETM, NUTRIDETM, and QPQTM—all grouped together under the name CLINTM.
These treatments are supplied by HEF through its international TECHNIQUES SURFACESTM network or integrated at the customer’s site, depending on the project. Moreover, CLINTM processes emit no volatile organic compounds (VOCs) or nitrogen oxides (NOx), use no PFAs, and are REACH-compliant.
CLIN™ technologies are proven alternatives to many surface treatments.
HEF NA positions its CLIN™ technologies as the ideal environmental friendly alternative to processes such as hard-chrome plating, electroless nickel, or gas nitriding.
These various advantages enable us to address different markets:
Liquid nitriding processes can be used to treat all types of ferrous materials, from cast irons to high-alloy steels. CLIN™ technologies comprise a series of steps, with liquid nitriding serving as the main component. This combination imparts multiple characteristics, making processes such as ARCORTM complete and versatile treatments.
CLIN™ treatments provide major improvements in:
Various CLIN™ product ranges have been developed to address the tribological challenges faced by manufacturers. The parameters of CLIN™ processes can be adjusted to attain the desired performance. Depending on the nitrocarburizing treatment range and the steel composition, the resulting properties obtained can reach:
With a vertically integrated approach, and to ensure the quality of our nitriding treatments, HEF NA has acquired expertise in the following areas:
By building on its vertically integrated strategy, HEF continues to innovate, particularly through the development and patenting of our ECO-CLIN™ recycling process. This integration model enables HEF to adapt to different business models and customer needs, ranging from service provision within its Techniques Surfaces entities to full technology transfer, including equipment and consumables.
Commercial Name | Thickness | Maximum Use Temp | |
|---|---|---|---|
Liquid Nitriding | <30 microns | 500°C (932°F) | More |
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