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Under the names bluemint® pure and bluemint® recycled, two new climate-friendly products were added to our portfolio in the fall of 2021. The special thing about them is that the material properties do not differ from existing steel grades – except in their reduced specific CO2 emissions. The certified steels are produced at the Duisburg site.
This is the first transformation success within the framework of our climate strategy and reflects the high standard of sustainable and customer-oriented steel production. In the coming years, we will invest intensively in innovations and technologies that will bring our customers closer to the common goal of climate neutrality and a green steel product.
thyssenkrupp Steel Europe AG
47166 Duisburg, Germany
Two products, many advantages – bluemint® pure and bluemint® recycled. In a short film we explain what lies behind our green steel products with reduced CO2 intensity while maintaining the same quality.
The concept of low-carbon steels is of high interest to many processing and end-use industries. bluemint® pure is particularly attractive for customers who are aiming for CO2 savings in a global context. bluemint® recycled is aimed in particular at our customers for whom a high recycling content is important.
bluemint® pure and bluemint® recycled stand for the variety of our portfolio of grades. This means that you can rely on the continued availability of the familiar materials. In terms of material and processing properties, our two bluemint® Steel products fall by no means short of our existing grades. On the contrary: The high premium quality is complemented by a significant CO2 reduction.
This is substantiated by our certificates: bluemint® pure is certified by the DNV and bluemint® recycled by TÜV SÜD.
Zentis is the first jam manufacturer to use reduced-CO2 rasselstein® tin plate made of bluemint® Steel from closure specialist Pano Verschluss. With immediate effect, the renowned food manufacturer is using the climate-friendly material for the twist-off closures of its high-quality "NaturRein" fruit spreads. The "NaturRein" concept is the first assortment from Zentis certified to be climate-neutral, and is based entirely on the idea of sustainability – both in the product itself and in the packaging.
"When it comes to climate protection, one factor is particularly important: smart collaboration on all levels," says Oliver Böcker, overall brand manager at Zentis. "We have strong and expert partners at our side with the companies Pano and thyssenkrupp Rasselstein. The cooperation is an essential step in terms of climate protection – and entirely in line with our ambitious sustainability strategy."
"Using rasselstein® tin plate made from bluemint® Steel can save up to 69 percent CO2," says Dr. Peter Biele, CEO of thyssenkrupp Rasselstein. "The real CO2 savings can help customers and their clients in turn to achieve their Scope 3 target. And all this without carbon offsetting, but only through alternative input materials in the steelmaking process. This primarily decreases the use of coal for the reduction process in the blast furnace."
"There has been a great and positive response from the market to this sustainability initiative from Zentis," says a delighted Thomas Stock, Managing Director of the twist-off cap manufacturer Pano Verschluss. "Produced from bluemint® tin plate, the PVC-free Blueseal® cap is a wonderful match for the Zentis product!"
As one of the pioneers in the industry, Accuride is exploring the opportunities of green steel: At the IAA Transportation exhibition, the manufacturer presented a truck wheel with input stock made entirely from reduced-CO2 bluemint® Steel from thyssenkrupp Steel. "By using bluemint® Steel, we can save around two-thirds of the greenhouse gas emissions in wheel production compared with conventional steel – and even up to 90 percent compared with aluminum wheels," explains Dr. Andreas Strecker, President Accuride Wheels Europe & Asia.
Accuride achieves an additional sustainability benefit through the material concept developed together with development partner thyssenkrupp Steel: A steel with a higher strength is used, which features a smaller plate thickness with the same performance. This weight reduction effect enables a weight saving compared with a conventional wheel steel, resulting in lower fuel consumption in the utilization phase.
The result: Over the full life cycle, which averages around 1.2 million kilometers, CO2 emissions can be reduced by over ten percent compared with a conventional wheel. "This means that a bluemint® wheel weighing 32 kilograms is better than significantly lighter forged aluminum wheels of the same size," reports Andreas Strecker. For trucks or commercial vehicles with lower mileages, such as refuse collection vehicles or concrete mixers, the advantage of bluemint® Steel is even greater, he says. Andreas Strecker: "This is a significant step toward greater sustainability in the commercial vehicle industry."
thyssenkrupp Rasselstein, together with the Swiss companies Hoffmann Neopac and Ricola, launched the world's first food can made from CO2-reduced bluemint® Steel in the spring.
Environmentally friendly materials are in high demand in the packaging industry. With its recyclable cans and tubes, the Swiss company Hoffmann Neopac is one of the industry's multiple award-winning pioneers. "Sustainability is at the heart of everything we do. We produce our cans in Switzerland with 100 percent renewable electricity, while working on our own decarbonization program," says Mark Aegler, CEO of Hoffmann Neopac.
The use of bluemint® Steel is part of this. In a joint project, thyssenkrupp Rasselstein is supplying the CO2-reduced packaging steel, while Hoffmann Neopac is producing and printing the cans using solar power.
Among the buyers is the Swiss herbal candy manufacturer Ricola. "It was important for us to make the packaging of our herbal candies more sustainable. That's why we are the first company in our market to use CO2-reduced food cans," says Dr. Martin Messerli, Chief Operating Officer of Ricola. The company has already been producing with electricity generated from hydroelectric power since 2016. From the Ricola Group's point of view, the next logical step was to optimize the supply chain and the packaging of the herbal candies. "By switching to a CO2-reduced can for our herbal candy specialties, Ricola is also responding to increased demand from consumers, who are paying more attention to the carbon footprint of their purchases," says Messerli.
The first customer to use bluemint® powercore® with a 50% lower CO2 intensity is SGB-SMIT from Regensburg. The transformer manufacturer uses the CO2-reduced steel in distribution transformers for new digital stations operated by the energy specialist E.ON. SGB-SMIT is thus supporting the development of a decentralized supply network in which the share of wind power, photovoltaic and biogas plants is steadily increasing. "For us, it represents a great added value that the top grades of thyssenkrupp Steel are now also CO2-reduced. This is an important step towards further decarbonization of the energy process chain," says Managing Director Holger Ketterer. In order to effectively reduce CO2, the medium-sized company has set itself two goals: to continuously reduce energy losses in the utilization phase of the transformers and to cut the carbon footprint of the transformers themselves.
Holger Ketterer: "With the first goal, the energy transition is dealing us a good hand. The more renewable energies are used, the lower the CO2 emissions from energy losses. That's why our focus is already clearly on the climate impact of the materials we use."
E.ON also sees great potential in the more climate-friendly version of its well-known and proven products. "We are committed to a sustainable energy world for tomorrow – so it makes a big difference in the overall assessment of a plant if a substation or green power station also has transformers with CO2-reduced electric steel," says Achim Hübner, International Category Lead for transformers at E.ON.
Transformers play a central role in the energy transition, as they ensure the conversion and transmission of green electricity. To ensure that this happens with as little loss as possible, high-tech steels are used in the transformers, or more precisely: highly efficient grain oriented electric steel of the powercore® brand from thyssenkrupp Steel.
In October 2021, CEO Franz Kaldewei personally ordered the first delivery of bluemint® Steel. Among other things, Kaldewei uses the material in the limited "Kaldewei nature protect" product series, which, in addition to attractive bathtubs, shower trays and washbasin bowls, also provides customers with a certificate showing the CO2 savings compared to standard products.
The manufacturer of bathroom articles made of recyclable enameled steel is doing everything in its power to safeguard future generations, and is placing even greater focus on sustainability. In summer 2021, Kaldewei became the first company in the sanitary industry to join the Science Based Target Initiative (SBTI), and has since been working to reduce its own carbon footprint in line with the Paris Climate Agreement.
Christian Graap, Technical Managing Director at Kaldewei, sees the greatest lever on the path to climate neutrality in the conversion of the primary material to green steel. "Steel is the optimum material for us because of its robustness, its good formability and, not least, its recyclability. However, its coal-based production is reflected in the CO2 balance of our own products. This changes with bluemint® Steel. Its use is an important step toward achieving our own climate goals."
The Managing Director of Kaldewei, Franz Kaldewei, adds: "bluemint® Steel gives us the certainty that we are already using the highest quality steel with a lower CO2 intensity for the production of our enameled steel bathroom products. This is an important step towards achieving our climate targets. With the new bluemint® Steel from thyssenkrupp Steel, we are overcoming a major hurdle on the way to Kaldewei's climate-neutral alignment.
HERE, to help you further.
Dr. Carmen Ostwald
Head of Business Development bluemint® Steel
Telephone: +49 (0)203 52-24458Send email
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thyssenkrupp Steel Europe AG
Head of Public & Media Relations
Telephone: +49 (0)203 52-25159
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