Nucor gets grant for ultra-high strength weathering steel pile for steel foundations

According to GlobalData’s company profile on Nucor, Structure Building Framework was a key innovation area identified from patents. Nucor‘s grant share as of January 2024 was 55%. Grant share is based on the ratio of number of grants to total number of patents.

Ultra-high strength weathering steel pile for steel foundations

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

A recently granted patent (Publication Number: US11846004B2) discloses a cold-formed ultra-high strength weathering steel pile made from a continuously cast hot rolled steel strip. The pile includes a cold-formed web and a pair of cold-formed opposing flanges with discontinuities, an as-cast thickness of 2.5 mm or less, and a composition comprising specific percentages of carbon, chromium, manganese, silicon, copper, niobium, molybdenum, and nickel. The pile has a microstructure of at least 75% martensite, a corrosion index of 6.0 or greater, a yield strength between 700 and 1600 MPa, a tensile strength between 1000 and 2100 MPa, and an elongation between 1% and 10%.

Furthermore, the patent also covers a solar arrangement that includes the cold-formed ultra-high strength weathering steel pile driven into the ground to support one or more solar cells above the ground surface. The pile’s unique composition and structure allow for enhanced strength and corrosion resistance, making it suitable for various applications, including solar installations. The patent emphasizes the specific characteristics of the steel pile, such as the presence of martensite, corrosion index, and mechanical properties, highlighting its innovative design and potential for use in demanding environments.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

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.