Robert R Gaugh

US Patent:

RE287725, Apr 13, 1976

Filed:

Mar 8, 1974

Appl. No.:

5/449516

Inventors:

Elbert E. Denhard - Towson MD
D. Cameron Perry - Middletown OH
Robert R. Gaugh - Lutherville MD

Assignee:

Armco Steel Corporation - Middletown OH

International Classification:

C22C 3844
C22C 3846
C22C 3858

US Classification:

75128A

Abstract:

Chromium-nickel-manganese steel characterized by good welding properties, which steel in the as-welded condition enjoys a combination of strength, ductility and impact resistance, along with good resistance to intergranular corrosion and good resistance to general corrosive attack. The steel contains about 20% to 25% chromium, about 6% to 17% nickel, about 3. 5% to 7% manganese, about. 15% to. 50% nitrogen, with carbon not exceeding about. 08, and with at least one of the three ingredients molybdenum, columbium and vanadium. For a best combination of properties at least two of the three ingredients are employed.