The United States Steel has patented a high-strength steel sheet product with controlled compositions and a two-step annealing process. The product exhibits favorable mechanical properties, making it suitable for industries like automobile manufacturing. GlobalData’s report on United States Steel gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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Data Insights United States Steel - Company Profile

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According to GlobalData’s company profile on United States Steel, Anti-corrosive metal tyre reinforcements was a key innovation area identified from patents. United States Steel's grant share as of May 2024 was 90%. Grant share is based on the ratio of number of grants to total number of patents.

High strength rolled steel sheet product with favorable properties

Source: United States Patent and Trademark Office (USPTO). Credit: United States Steel Corp

A recently granted patent (Publication Number: US11993823B2) discloses a high-strength rolled steel sheet product that has undergone a two-step annealing process. The product comprises specific weight percentages of carbon, manganese, silicon, and aluminum, with a balance of iron. It contains ferrite, equiaxed retained austenite grains with a specific aspect ratio, and minimal untempered martensite. The steel sheet product demonstrates a combination of ultimate tensile strength and total elongation greater than 25,000 MPa %, along with a hole expansion ratio of at least 30 percent.

Furthermore, the patent outlines additional features of the high-strength rolled steel sheet product, including specific weight percentage ranges for silicon, aluminum, titanium, and niobium. The product's composition, including the percentages of carbon, manganese, and various alloying elements, contributes to its mechanical properties. The steel sheet product also exhibits specific volume percentages of ferrite and retained austenite, with the latter having an average grain size below certain microns. Additionally, the product may include a zinc-based coating and is typically hot rolled to achieve the desired characteristics outlined in the patent.

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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.