What is the material of CO2-reduced stainless steel?

CO2 reduced stainless steel is a type of stainless steel material that helps reduce carbon dioxide emissions. Its raw materials and manufacturing processes have been optimized to reduce environmental pollution and energy consumption. The specific material composition may vary; it is necessary to refer to the specific manufacturer and product specifications to confirm this. .

It turns out to be material with a so-called eco-label

Yes, “CO2 reduced” means a reduction in carbon dioxide emissions, and it is a sign of an eco-friendly material. Energy utilization and emission control have been optimized during the manufacturing process to reduce the environmental impact. Some manufacturers incorporate this environmental concept into the naming and promotion of their materials, thereby giving them a so-called eco-friendly label. It should be noted, however, that it is necessary to ensure that such “CO2 reduced” materials meet international or local environmental standards and certifications, in order to avoid being misled by false advertising. .

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ArcelorMittal has introduced a concept for a steel standard with low carbon emissions, aimed at encouraging the decarbonization of steel production worldwide and supporting the creation of a market demand for solid steel products that have low carbon emission levels and are ultimately close to zero. The company stated that establishing a clear definition for low-carbon steel products is an important part of both demand-driven and supply-driven mechanisms, and it is essential to support the steel industry’s transition to net zero by 2050. A clear definition will also help in formulating targeted policies to support the scaling up and commercialization of these near-zero technologies. This concept has three core principles: 1. It must include a dual scoring system, comprising the LCA value of the finished product as well as a decarbonization rating system that classifies low-carbon and near-zero carbon emissions per ton of hot-rolled steel, thereby rewarding manufacturers for adopting a decarbonization approach from the very beginning. 2. Its design must encourage the decarbonization of all steel production methods through technological transformation, rather than simply increasing scrap rates by using existing technologies. This can be achieved by using a floating ratio based on the percentage of waste used in production; this system is also at the core of the Responsible Steel and International Energy Agency (IEA) low-carbon steel models. 3. It must include a clearly defined boundary from which the carbon emissions of the decarbonization rating system are calculated. This concept is intended to complement methods for rewarding virtual low-carbon steel, at least until large quantities of such steel are available. As our industry transitions toward net zero, establishing classification standards for steel with low carbon emissions is crucial for our journey toward decarbonization. We spent a lot of time thinking about how to do this in a fair manner, in order to motivate all steel manufacturers to reduce their emissions and ultimately achieve net-zero emissions. At the heart of our concept is a system that ensures all steel manufacturers, whether primary or secondary, are motivated to further reduce their emissions, and that progress toward near-zero emissions is recognized and rewarded. We know that many organizations have given a lot of thought to this issue. We are in close discussions with several of these organizations, and we welcome the opportunity to share our steelmaking expertise with them when they put forward their suggestions. Given that this is such an important topic for the industry, we have decided to directly publish the key principles that we believe should form the core of any system, in order to formally classify low-carbon and near-zero-carbon steels. We believe these principles will help inspire the industry, and they will also prove to be valuable in providing transparency and clarity to steel consumers, guiding their purchasing decisions, and helping to develop a green steel market.

Dual scoring system. Any standard must include a dual score, comprising the LCA value of the finished product, so that customers can clearly see the implied carbon emissions associated with the steel they purchase ； The decarbonization rating system is similar to the labeling system already used by the EU in white goods, and it is used to measure the level of progress toward decarbonization achieved by steel producers. Sliding scale based on the percentage of waste input. Any standard must motivate all steel producers to move toward net zero, regardless of the technologies they begin to adopt. The carbon emissions per ton of steel are largely influenced by the metal inputs used in steelmaking; compared to primary steelmaking (based on iron ore), secondary steelmaking (based on scrap steel) has a much lower carbon footprint. Although scrap steel plays an important role in the decarbonization of the global steel industry, it is a limited resource that has already been fully utilized; until 2050, primary steel will still be needed to meet steel demand. Therefore, ArcelorMittal firmly shares the view of Responsible Steel and the IEA that steel standards for low carbon emissions should include a floating percentage that takes into account the metal inputs used in steelmaking (primary/iron ore and secondary/scrap steel), and that this should be achieved through the adoption of low-carbon emission technologies, rather than simply by increasing the use of scrap.

In the concept of low-carbon steel standards developed by ArcelorMittal, a dual-scoring system is one of the core principles. This scoring system includes the LCA value of the finished product and a decarbonization rating system. The LCA value of the finished product helps customers understand the implied carbon emissions associated with the steel they purchase. The decarbonization rating system is similar to the labeling system already in use in Europe for white goods, and it is used to measure the level of progress toward decarbonization achieved by steel producers. In addition, the standard includes a floating ratio based on the percentage of waste input; that is, the carbon emissions of steel are determined by taking into account the metal inputs used in steelmaking (primary/iron ore and secondary/scrap steel), thereby encouraging the use of low-carbon emission technologies. This helps drive all steel manufacturers toward net zero. At the same time, this standard recognizes that scrap steel is an important resource that plays a significant role in the global decarbonization of steel production. However, scrap steel is a limited resource; to meet long-term steel demand, primary steel still needs to be used in the production process. Therefore, ArcelorMittal firmly shares the view of other responsible steel companies and the International Energy Agency that this standard needs to incorporate appropriate floating ratios to take into account the metal inputs in the steelmaking process. .

It is crucial to use consistent boundaries in order to enable comparable comparisons of decarbonization rating systems among steel producers, and these boundaries should represent the core emissions from steel production. Therefore, in its initial phase, the ArcelorMittal concept proposed a core steel system boundary based on the Net Zero Steel Pathway project, which calculated all Scope 1 and Scope 2 emissions from ironmaking, as well as selected Scope 3 emissions, ranging from ironmaking and steelmaking to casting and rolling. As measurement methods and key upstream emission data become available, this boundary will be expanded in the second phase to include upstream emissions. The diagram below illustrates the concept of how the decarbonization rating system works: News translation: Detailed explanation of ArcelorMittal’s global low-carbon steel standards, 202206232291. The position of steel producers on the chart is determined by the implied carbon emissions per ton of hot-rolled steel (y-axis) and the amount of metal inputs used (x-axis). The producer’s position above or below the threshold line indicates whether it will produce low-carbon steel. In addition, steel producers with levels equal to or below the threshold will be divided into six categories — A+ to E — as they progress through these categories during the decarbonization process. Therefore, policymakers and customers can use this system to encourage producers to further decarbonize in order to achieve higher ratings (A and A+ are the highest; they are the only ratings that producers can claim indicate steel with near-zero emissions (A) or net-zero emissions (A+)).