Patents Assigned to Al Tech Specialty Steel Corporation
  • Corrosion resistant wrought stainless steel alloys having intermediate strength and good machinability
    Patent number: 4798634
    Abstract: A stainless steel having well balanced physical properties, including good corrosion resistance, intermediate strength and good machinability and further being readily process and prepared at low cost. To achieve these properties the microstructure is primarily martensite and ferrite with a limited amount of austenite. Elemental compositional ranges are controlled along with the microstructure resulting in defining the approximate compositional/microstructural boundaries in terms of a region in a Schaeffler type Diagram.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: January 17, 1989
    Assignee: Al Tech Specialty Steel Corporation
    Inventors: Harry E. McCune, III, Charles A. Divine, Jr.