MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202617075185 A) filed by Arcelormittal on June 17, 2026, for A Non-Heat Treated Cold Rolled Super Plastic High Manganese Low Density 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 non-heat treated cold rolled super plastic high manganese low density steel sheet 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 25 microns with an aspect ratio of the residual austenite grains from 1 to 4.5.
Disclaimer: Curated by HT Syndication.
