MUMBAI, India, Sept. 26 -- Intellectual Property India has published a patent application (202431022235 A) filed by Tata Steel Limited, Jamshedpur, Jharkhand, on March 22, 2024, for 'a low alloy corrosion resistant non-stainless ultra-high-strength steel and a method of manufacturing thereof.'
Inventor(s) include Nemai Chandra Gorain; Sourabh Chatterjee; Arun Kumar Singh; and Amar Nath Bhagat.
The application for the patent was published on Sept. 26, under issue no. 39/2025.
According to the abstract released by the Intellectual Property India: "The present disclosure discloses a low alloy corrosion resistant non-stainless ultra-high-strength steel, comprising an alloying composition in weight % (wt.%) of: Carbon (C) in range of 0.25% - 0.35%, Manganese (Mn) in range of 1.8% - 2.2%, Sulphur (S) in range of 0.001-0.01%, Silicon (Si) in range of 0.2%-1%, Phosphorus (P) in range of 0.01%-0.02%,Aluminium (Al) in range of 0.05-0.85%, Boron (B) in range of 0.0002%-0.001%, Chromium (Cr) in range of 0.2%-0.9%, Zirconium (Zr) up to 0.03%, Copper (Cu) in range of 0.1-0.6%, Molybdenum (Mo) in range of 0.1%-0.4%, Vanadium (V) in range of 0.001%-0.07%, Niobium (Nb) in range of 0.001%-0.07%, Nickel (Ni) in range of 0.001%-0.5%, Titanium (Ti) in range of 0.001% - 0.07%, Nitrogen (N) in range of 10-120 ppm, and balance being iron and incidental impurities. The low alloy corrosion resistant non-stainless ultra-high-strength steel comprises a fine-grained martensitic micro-structure."
Disclaimer: Curated by HT Syndication.
