MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202617075735 A) filed by Arcelormittal on June 18, 2026, for A Super Plastic High Manganese Low Density Annealed Cold Rolled Steel Sheet And A Method Of Production Thereof.
Inventors include Garat, Xavier; and Lorenzini, Pascal.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: A super plastic high manganese low density annealed cold rolled steel comprising of 0.12% = carbon = 0.5%, 12% = manganese = 20%, 5% = aluminum = 9%, 0% = silicon = 2%, 0% = phosphorus = 0.1%, 0% = sulfur = 0.03%, 0% = nitrogen = 0.1%, 0 = niobium = 0.03%, 0 = titanium = 0.2%, 0% = molybdenum = 0.5%, 0% = chromium = 0.6%, 0% = copper = 2.0%, 0% = nickel = 3.0%, 0% = calcium = 0.005%, 0% = boron = 0.01%, 0% = Magnesium = 0.005%, 0% = Zirconium = 0.005%, 0% = Cerium = 0.1%, and the balance including iron and unavoidable impurities, the steel sheet having a microstructure comprising, in area fraction, 45% to 90% ferrite and 10% to 55% of austenite having an average grain size from 0.5 to 10 microns with an aspect ratio of the residual austenite grains from 1 to 4.5.
Disclaimer: Curated by HT Syndication.
