Classes of steels for tubular products

US9834832B2 · kind B2 · utility

Assignee

• The NanoSteel Company, Inc. · US

Inventors

• Daniel James Branagan · Iona, US
• Sheng Cheng · Idaho Falls, US
• Longzhou Ma · Las Vegas, US
• Jason K. Walleser · Idaho Falls, US
• Grant G. Justice · Idaho Falls, US
• Andrew T. Ball · Idaho Falls, US
• Kurtis CLARK · Idaho Falls, US
• Scott Larish · Idaho Falls, US
• Alissa Peterson · Providence, US
• Patrick E. Mack · Milford, US
• Brian D. Merkle · Idaho Falls, US
• Brian D. Meacham · Idaho Falls, US
• Alla V. Sergueeva · Idaho Falls, US

Key dates

• Filing date: Jan 9, 2014
• Grant date: Dec 5, 2017
• Expiry date: Mar 13, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C21D2211/004
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present disclosure is directed and formulations and methods to provide alloys having relative high strength and ductility. The alloys may be provided in seamless tubular form and characterized by their particular alloy chemistries and identifiable crystalline grain size morphology. The alloys are such that they include boride pinning phases. In what is termed a Class 1 Steel the alloys indicate tensile strengths of 700 MPa to 1400 MPa and elongations of 10-70%. Class 2 Steel indicates tensile strengths of 800 MPa to 1800 MPa and elongations of 5-65%. Class 3 Steel indicates tensile strengths of 1000 MPa to 2000 MPa and elongations of 0.5-15%.