Accession Number : AD0680233

Title :   A STUDY OF THE WELD HEAT-AFFECTED ZONES IN MODIFIED 4330 AND 5 PER CENT CHROMIUM STEELS.

Descriptive Note : Technical rept.,

Corporate Author : WATERVLIET ARSENAL N Y

Personal Author(s) : Wu,Keh-Chang

Report Date : DEC 1961

Pagination or Media Count : 33

Abstract : The weldability of modified 4330 steel and centrifugally cast 5 per cent chromium steel were investigated by using the Rensselaer Polytechnic Institute hot ductility test. The microstructure in the heat-affected zone at various locations was reproduced in Charpy impact test specimens which were tested at various temperatures from -60 to +212F. It was found that under the same welding conditions employed in the welding of the M68 105mm gun bore evacuator, the weldability and low temperature impact strength were better in the modified 4330 steel than in the centrifugally cast 5 per cent chromium steel. (Author)

Descriptors :   (*STEEL, WELDABILITY), (*WELDS, THERMAL PROPERTIES), DUCTILITY, ARC WELDING, MICROSTRUCTURE, THERMAL STRESSES, TENSILE PROPERTIES, IMPACT TESTS

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE