After bending, especially for heavy wall materials or special alloy steels, it may be necessary to restore the mechanical properties of the pipe using heat treatment. Such treatments include stress relieving, normalising, quenching & tempering and solution annealing heat treatment. In order to perform these types of heat treatment, ENGIE Fabricom has 3 furnaces which can be heated up to 1,200°C.
The furnaces are continuously monitored by thermo-couples situated in each zone, ensuring correct and balanced temperatures throughout the heat treatment cycle.
In order to meet the strict requirements with regard to material properties set by the Oil, Gas and Power industry, ENGIE Fabricom can offer various cooling types. Following heat treatment, bends can be immerged in water (quenching), cooled in still air or forced air, to obtain the right mechanical and corrosion characteristics.