MUMBAI, India, Oct. 11 -- Intellectual Property India has published a patent application (202517092565 A) filed by Nippon Steel Corporation, Tokyo, on Sept. 26, for 'hot-dip galvanized steel material.'
Inventor(s) include Furukawa Shinya; Tokuda Kohei; and Goto Yasuto.
The application for the patent was published on Oct. 10, under issue no. 41/2025.
According to the abstract released by the Intellectual Property India: "In this hot-dip galvanized steel material, a plating layer has a chemical composition containing more than 10.0% but less than 45.0% Al, 4.0-15.0% Mg, 0.01-2.0% Si, and 0.03-1.50% Sr, with the remainder being Zn and impurities. The plating layer contains a Zn-Sr-based compound and a Zn-Sr-Si-based compound. In an element distribution profile when GDS analysis is performed from the surface of the plating layer toward a steel material, an expression (1) is satisfied where t is the thickness of the plating layer, Sr(surf) is the average value of qualitative analysis values of Sr from the surface of the plating layer to 0.05t, Sr(centre) is a qualitative analysis value in the range from 0.05t to 0.66t, and Sr(deep) is a qualitative analysis value in the range from 0.66t to t. (1): Sr(surf) Sr(deep) Sr(centre)."
The patent application was internationally filed on Mar. 14, 2024, under International application No.PCT/JP2024/010028.
Disclaimer: Curated by HT Syndication.
