In steel industry, the number of ageing assets is steadily rising, and these become more heavily and more frequently loaded to increase productivity. As such the risk of a component failure and a costly production stoppage is increased. Whilst it is crucial to frequently inspect the condition of the critical areas of the construction, critical locations are often not easily accessible for executing frequent inspections. Sensors can bring continuous updates of such “health” status in an efficient way. On ageing installations, the development of cracks is a prime source of concern and often these cracks need to be inspected on a regular basis. But the intensity of the loading activity can change and hence the frequency of the inspections, which is hard to plan, especially in difficult to reach areas. Therefore, the maintenance team benefits from digital assistance to cope with this difficult task. Being experts on steel and metal related applications including their failures, OCAS NV has therefore partnered up with VILLARI. Their crack sensors are efficient to install and allow a remote monitoring of the activity levels of the cracks through a graphical user interface. As such the asset owner can adapt the maintenance schedule and intervene at the right time to avoid a breakdown of the installation. OCAS NV supports its customers in the metal processing industry with industrial asset reliability services on the technical aspects of asset integrity such as failure analysis, material related QA/QC procedures, determination of critical sensor locations plus measurement follow-up, digital twin simulations and fitness-for-purpose calculations towards remaining lifetime of the critical asset.