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Siemens Mobility is continuing to expand the application of green steel in railway production, deepening its cooperation with Austria's voestalpine. The goal is to source 20% of its steel from CO2-reduced materials this year. This collaboration extends the "Green Steel for Bogies" pilot project launched by Siemens Mobility in 2022. Under a new agreement, starting from 2025, 20% of the steel used in Siemens' railway vehicle production will come from voestalpine's low-carbon product "Greentec Steel," with room for further increases in procurement volume in the future.
The pilot project is being implemented at the Global Bogie Competence Center in Graz, Austria, which has an annual production capacity of 3,000 bogies. The utilization rate of low-carbon materials at the center is gradually increasing. Currently, the railway industry—especially infrastructure managers—is fully committed to promoting operational greening, covering links such as railway component production. This cooperation is a positive response to this industry trend.
Greentec Steel, produced at voestalpine's Linz plant, adopts a CO2-optimized production process, achieving a reduction in emissions of up to 70% compared to traditional steel. To date, Siemens has applied this low-carbon steel to multiple core components of railway vehicles, including bogies, locomotives, and passenger cars, and plans to further increase its usage ratio in future projects. In mid-September, voestalpine issued a greenhouse gas emission declaration certificate for the low-carbon steel to Siemens, ensuring full life-cycle traceability of the materials and demonstrating Siemens' firm commitment to supply chain sustainability and transparency.
As a core initiative of Siemens Mobility's sustainability strategy, increasing the use of green steel is key to achieving its long-term climate goals: reducing CO2 equivalent emissions from its own operations by 90% by 2030 and achieving net-zero greenhouse gas emissions across the entire value chain by 2050.
