Patents by Inventor Harsad Kumar Dharamshi Hansraj Bhadeshia

Harsad Kumar Dharamshi Hansraj Bhadeshia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High strength bainitic steel for OCTG applications
    Patent number: 8328960
    Abstract: A high strength bainitic steel and a process for producing seamless pipes for OCTG applications are described. In particular, the advantages ensuing to the steel of the invention are the improvement in strength-toughness over tempered martensitic steels, and a simplified thermal treatment. Quenching is not necessary and by avoiding the quenching treatment the microstructure results far more homogeneous, which allows thick walled tubes to be produced. For the same steel composition, in comparison to conventional tempered martensitic structures, a better combination of strength and toughness can be achieved, in particular by tempering as rolled carbide-free bainitic structures.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: December 11, 2012
    Assignee: Tenaris Connections Limited
    Inventors: Gonzalo Roberto Gomez, Teresa Estela Pérez, Harsad Kumar Dharamshi Hansraj Bhadeshia
  • HIGH STRENGTH BAINITIC STEEL FOR OCTG APPLICATIONS
    Publication number: 20100294401
    Abstract: A high strength bainitic steel and a process for producing seamless pipes for OCTG applications are described. In particular, the advantages ensuing to the steel of the invention are the improvement in strength-toughness over tempered martensitic steels, and a simplified thermal treatment. Quenching is not necessary and by avoiding the quenching treatment the microstructure results far more homogeneous, which allows thick walled tubes to be produced. For the same steel composition, in comparison to conventional tempered martensitic structures, a better combination of strength and toughness can be achieved, in particular by tempering as rolled carbide-free bainitic structures.
    Type: Application
    Filed: November 19, 2007
    Publication date: November 25, 2010
    Applicant: Tenaris Connections Limited
    Inventors: Gonzalo Roberto Gomez, Teresa Estela Pérez, Harsad Kumar Dharamshi Hansraj Bhadeshia