SIWATT steel grades offer excellent magnetising ability, high magnetic permeability, and low energy losses. They are essential for the economical production, conversion and use of electricity.
SIWATT electrical steel is used in electric motors and generators. This high-performance steel is crucial not only for conventional applications in electrical appliances but also for the expanding field of hybrid and electric vehicles, driving the future of sustainable transportation. It also offers a solution for power generators at construction sites.
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Specially developed and optimized for e-mobility. These non-oriented electrical steels with thicknesses under 0.35 mm are specialized for high-performance applications that demand low core losses and high efficiency, especially at higher frequencies. With our new investments, we are proving that producing the most advanced and highest quality electrical steel is also possible through circular economy using the electric arc furnace.
Fully-processed non-oriented electrical steel is optimized for its magnetic properties and does not require further processing by the end user. All properties are fully developed and controlled. The steel can be delivered uncoated or coated with insulation varnish and is ready to be stamped and stacked.
Industries in detail
Green² steel
SIWATT electrical steel is also available as part of our sustainable line green²
Recycled content
Green² steel is made from recycled steel scrap, without the use of iron ore.
100 % renewable electricity
Green² steel is made with 100 % renewable electricity.
Single site production
Green² steel is produced entirely in one location avoiding unnecessary emissions from transporting semi-finished products.
Standards, certificates & approvals
SIJ Acroni has obtained the IATF 16949:2016 quality management system certification for the production of cold-rolled strips – a key material in electric motor manufacturing for the automotive sector. This achievement reflects our commitment to the highest quality standards and strengthens our position as a trusted partner for the world’s most demanding electric motor manufacturers.
References

Case studies

Case Study: Development of XM-19 stainless steel for a tokamak fusion reactor
13.02.2026.jpg&w=828&q=90)
Case study: SIJ Acroni’s contribution to SOFC interconnectors
15.01.2026.jpg&w=828&q=90)
Case study: SIJ Acroni’s contribution to nuclear waste storage solutions
20.03.2025
Case study: Circular partnership with Hidria
17.02.2025
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