Metal treatment – Stock – Ferrous
Patent
1987-08-10
1989-01-17
Yee, Deborah
Metal treatment
Stock
Ferrous
420 42, 420 56, C22C 3840
Patent
active
047986344
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.
REFERENCES:
patent: 2384565 (1945-09-01), Schaufus
Divine, Jr. Charles A.
McCune, III Harry E.
Al Tech Specialty Steel Corporation
Yee Deborah
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