Accession Number:

AD0404495

Title:

TENSILE AND IMPACT PROPERTIES OF SOME MARAGING STEEL COMPOSITIONS

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

Report Date:

1963-04-23

Pagination or Media Count:

11.0

Abstract:

Laboratory vacuum induction heats of 18-Ni mar aging steels were cast into 25-pound ingots and forged into flat bar stock. Transverse tensile and Charpy V specimens were obtained from the forged material. One composition contained 8.4 Co, 3.2 Mo, and 0.2 Ti five others contained 7 or 9 Co and 3.2, 3.8, or 5 Mo, but no titanium. Specimens were aged at various tempera tures up to 1000 F, and Charpy V and tensile properties were determined at room temperature. Charpy V tests were also conducted at 30 and -20 F. The titanium- containing composition con sistently developed considerably better combina tions of Charpy V toughness and yield strength than did the others.

Subject Categories:

  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE