• Data and AI


  • Industry

Case study

Outokumpu streamlined their process to cast perfect steel

Outokumpu, a world leader in stainless steel, has the most integrated stainless steel mill in the world in Finland. The same production site includes a melt shop, a hot rolling mill, a cold rolling mill and even a ferrochrome smelter as the source of one of the essential raw materials of steel, chromium.

The company competes with their ability to create the most streamlined process to cast steel. We took them one step further.

closeup of steel rods


Outokumpu had a modern manufacturing execution system at its disposal, but developing production needs required even better timing in the steel casting process. They wanted the smelting operators to see any slack in the process instantly. That way the system would not be in charge of the process but the person making the decisions.


We created a scheduling system for steel casting called ValuA with a predictive model of the different smelting phases. The system was designed to serve line control operators by creating a one-glance view of the complicated steel production line process. The system was implemented in phases, first just for the systems specialists, then for the people doing the production work. People were quick to understand the new way of viewing the multistep steel casting process.


The system allowed users to see a real-time view of the overall smelting and hot rolling process 24/7, the present situation, historical progress and a prediction of how the next phase of the process will go. It was easier to pinpoint maintenance needs and errors. Optimizing the casting process boosted production, decreased lead times and extra buffer phases weren’t needed anymore. All in all, planning ahead was simpler and the company was made more resilient, like their product.


tonnes per year


shorter process




More steel per year…

… with the same manufacturing capacity. 129 cars worth of steel was added to annual production. The only change was the upgraded system.

A faster process

The smelting process was shortened by 7.3%, a huge efficiency increase in steel smelting. These 7.3% meant reducing every smelting process by 38 minutes.

A visualized process

Outokumpu now has a 24/7 real-time overall view of the smelting and hot rolling processes.

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