Steel as a resource

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Clean steel

Steel can be produced cleanly and recycled again and again without loss. This means it complies with the principle of sustainability like hardly any other material. Steel power is a driving engine for the German economy. Around 60 percent of production value in the manufacturing sector is steel-intensive.


Material properties

Steel is 100% recyclable and can be melted down an infinite number of times.


Holistic approach and sustainability

The more frequently steel is recycled, the smaller its environmental footprint. 

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CO2 Footprint

Recycling, CO2 and Europe.

Steel production
Two ways

In steelmaking, two different routes are classified into routes. In the blast furnace route, liquid pig iron is produced from ore in the sinter plant and then in the blast furnace. It is then converted into steel. In the classic converter steel mill, about 23% scrap and 77% pig iron are processed, depending on the composition of the pig iron. The scrap serves as cooling. Depending on the requirements for the steel, up to 100% scrap is melted in the electric arc furnace in the electric steel route. Stainless steel in particular is produced in this way.

The "green route" with decarbonized steel is new.

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Way 1 - Blast Furnace

Around 70% of crude steel is still produced using coke. However, this form of extraction is increasingly viewed critically.


Way 2 - Arc furnace

The electric steel route describes production in the electric arc furnace. This route is often seen as a bridging technology for green steel.

New - Green steel

Fossil-free green steel is decarbonized steel. CO2 is either completely avoided or captured and converted or stored.

Green steel

Availability of clean steel at best conditions

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stahlo new green stell

Classification label by Stahlo

The energy mix used to produce steel and the conversion process can be tracked and classified. Learn more about steel classification.