Patents Assigned to Amsted Maxion Fundição e Equipamentos Ferroviários S.A.
  • Steel alloy for railway components, and process of manufacturing a steel alloy for railway components
    Patent number: 10415108
    Abstract: The present invention relates to the steel alloy for railway components and the process of manufacturing it, said alloy comprising, in weight percentage, from 0.21 to 0.27 carbon, from 0.80 to 1.20 manganese, from 0.35 to 0.60 silicon, up to 0.02 phosphorus, up to 0.02 sulfur, from 0.55 to 0.65 chromium, from 0.45 to 0.55 molybdenum, from 1.75 to 2.05 nickel and from 0.005 to 0.030 titanium, conferring, with its composition, desirable mechanical properties, hardenability and corrosion resistance for application on railway components.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: September 17, 2019
    Assignee: Amsted Maxion Fundição e Equipamentos Ferroviários S.A.
    Inventor: Carlos Marcelo Belchior
  • Process of manufacturing a steel alloy for railway components
    Patent number: 10400296
    Abstract: A process of manufacturing a steel alloy for railway components is provided. The process involves providing an alloy comprising, in weight percentage, from 0.21 to 0.27 carbon, from 0.80 to 1.20 manganese, from 0.35 to 0.60 silicon, up to 0.02 phosphorus, up to 0.02 sulfur, from 0.55 to 0.65 chromium, from 0.45 to 0.55 molybdenum, from 1.75 to 2.05 nickel, and from 0.005 to 0.030 titanium; casting the alloy; normalizing the alloy; heat treating the alloy; and tempering the alloy, wherein the tempering occurs at 400-700° C. for 1-5 hours.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: September 3, 2019
    Assignee: Amsted Maxion Fundicao e Equipamentos Ferroviarios S.A.
    Inventor: Carlos Marcelo Belchior