Manoir Industries offers solutions in a wide range of steels; proprietary alloys, such as the Manaurites®; and complex and standardised alloys to meet all types of requirement. This metallurgical expertise is adapted to the needs of cast parts. The teams of engineers continuously work to optimise the production of all these alloys, and reach ever higher levels of performance and quality.

Our expertise

To meet the extreme demands encountered in some applications – particularly for the petrochemicals, direct reduction of iron (DRI) and steel industries – Manoir Industries is continuously developing new proprietary grades based on Ni, Cr and Fe.

These so-called refractory steels are designed to achieve the best performance and durability for use in extreme temperatures of between 800°C and 1200°C, and in corrosive environments. Over the last 50 years of research and development in this field, no less than 20 varieties of Manaurites® have been produced. The latest one is Manaurite® XAl4, which is a refractory steel grade containing 4% aluminium for very high temperature steam-cracking applications, and which is optimized for unprecedented performance in terms of carburizing and coking resistance.


main-heat resistant alloys for hydrocarbon processing


Manoir Industries manufactures most of the existing alloys referenced in the various European standards (American Iron and Steel Institute [AISI] and American Society for Testing and Materials [ASTM]), including carbon steels, low alloys, martensitic stainless steels, austenitic, duplex, ferritic, refractory and nickel-based alloys.

If you have identified the standard alloy you need, we will know how to deal with it. If the specification for your request is only functional, we will be able to assist you with selecting a suitable alloy.

The extensive metallurgical expertise of Manoir Industries enables us to offer a large range of complex high-grade alloys such as duplex, super duplex or super alloys on a nickel base.

These alloys require a difficult implementation, but often make it possible to achieve optimum performance. They open fields in the production of parts that are resistant to corrosion in a very aggressive environment, at a high temperature and under severe mechanical stress.

It is possible to manufacture products from powders with little machining because of few cases of over-thickness in developing high-tech parts with a low material commitment (buy-to-fly).

This technology also offers new possibilities in terms of internal shapes, geometries and metallurgies (steel grades, multi-materials, etc.) that cannot be obtained by current processes.

Along with savings in metal and energy, it allows very integrated processes. The powder is obtained from liquid steel. A flow of liquid metal at over 1,000°C is struck by a neutral gas jet sprayed as metal droplets that are cooled down in their fall within the atomization tower. The powder is then post-treated according to the required applications and markets.

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