Accession Number : AD0423808

Title :   WELDING CHARACTERISTICS OF FOUR PROMISING 130 TO 150 KSI YIELD-STRENGTH SUBMARINE-HULL STEELS -- II.

Descriptive Note : Progress rept.,

Corporate Author : UNITED STATES STEEL CORP PITTSBURGH PA

Personal Author(s) : Rathbone,A. M.

Report Date : 25 SEP 1963

Pagination or Media Count : 1

Abstract : As part of the preliminary selection of compositions for an HY-130/150 steel, the properties of production heats of 3 3/4Ni-Cr-Mo-V, 5 1/4Ni-CrMo-V, and 7 1/2Ni-Cr-Mo steels were compared with those of HY-80 steel when all steels were heattreated to yield strengths in the range 130 to 150 ksi. The assessment included a determination of the crack susceptibility, toughness, and transformation characteristics of the heat-affected zones of the four steels. The latter two determinations indicated that minimum embrittlement and adequate hardenability of the heat-affected zones were obtained in the Ni-Cr-Mo steels when the nickel content was about 5 percent. The present study reports the crack susceptibility of the four steels when they were fabricated into cruciform test specimens by the manual shielded metal-arc (covered-electrode) process (with E11018 electrodes) and by the inert-gas-shielded metal-arc (MIG) process (with experimental HY-130/150 filler wires). (Author)

Descriptors :   *STEEL, *SUBMARINE HULLS, WELDING, METAL PLATES, METAL PLATES, MECHANICAL PROPERTIES, HEAT TREATMENT, FRACTURE(MECHANICS), TOUGHNESS, TRANSFORMATIONS, WELDS, BRITTLENESS, HARDENING, WELDING RODS, STRESSES, HYDROGEN EMBRITTLEMENT, CHROMIUM, MOLYBDENUM, VANADIUM, CHEMICAL ANALYSIS, NICKEL ALLOYS, CHROMIUM ALLOYS, MOLYBDENUM ALLOYS, VANADIUM ALLOYS, EXPERIMENTAL DATA.

Distribution Statement : APPROVED FOR PUBLIC RELEASE