ArcelorMittal has been granted a patent for a tempered and coated steel sheet with specific elemental compositions and microstructural characteristics. The steel features a combination of residual austenite, ferrite, tempered bainite, and tempered martensite, ensuring a total elongation above 17%. Methods for manufacturing and application are also included. GlobalData’s report on ArcelorMittal gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on ArcelorMittal, Photovoltaic roof tiles was a key innovation area identified from patents. ArcelorMittal's grant share as of July 2024 was 61%. Grant share is based on the ratio of number of grants to total number of patents.
The granted patent US12065724B2 describes a tempered and coated steel sheet characterized by a specific composition and microstructure, which enhances its mechanical properties. The steel sheet comprises carbon (0.17% to 0.25%), manganese (1.8% to 2.3%), silicon (0.5% to 2.0%), aluminum (0.03% to 1.2%), and minimal amounts of sulfur and phosphorus. The microstructure includes 3% to 20% residual austenite, at least 15% ferrite, 40% to 85% tempered bainite, and a minimum of 5% tempered martensite. Notably, the total elongation of the steel sheet exceeds 17%, and it exhibits an ultimate tensile strength above 900 MPa, with some claims specifying values between 1000 MPa and 1100 MPa.
Further claims detail variations in the composition and microstructure, such as specific ranges for silicon and aluminum content, and the proportions of tempered martensite and residual austenite. The patent also outlines the potential inclusion of additional elements like chromium, molybdenum, niobium, and titanium. The steel sheet is intended for use in structural or safety parts of vehicles, emphasizing its suitability for applications requiring high strength and ductility. The claims collectively highlight the innovative aspects of the steel sheet's formulation and its potential applications in the automotive industry, focusing on enhancing performance and safety features.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
