Accession Number:
AD0604870
Title:
DEVELOPMENT OF AN HY-130/150 WELDMENT
Descriptive Note:
Quarterly progress rept. no. 4, 1 Apr-30 Jun 1964
Corporate Author:
UNITED STATES STEEL CORP MONROEVILLE PA
Personal Author(s):
Report Date:
1964-07-01
Pagination or Media Count:
44.0
Abstract:
Laboratory development studies on the base metal were completed, and the results indicate that the 5Ni-Cr-Mo-V steel appears to be the optimum composition for an HY-130150 steel. A second 80-ton electric-furnace heat, a 40-ton basic-oxygen-steelmaking OSM heat, and a 40-ton OSM vacuum-carbon- deoxidized heat of the 5Ni-Cr-Mo-V steel have been melted and are being evaluated. Ingots have also been cast from an OSM heat of the 5Ni-Cr-Mo-V steel for consumable-electrode remelting and for processing to a ring forging, and plans for producing castings and structural shapes have been formulated. The studies should indicate the suitability of the 5Ni-Cr-Mo-V steel for the various types of products required for submarine-hull construction, and should establish the composition ranges for the various 5Ni-Cr-Mo-V steel products. Laboratory base-metal weldability studies, which defined composition limits for the 5Ni-Cr- Mo-V steel, have been completed. As anticipated, the heataffectedzone crack susceptibility of the first production heat of the 5Ni-Cr-Mo-V was low, and its heat-affected-zone toughness was high. Covered-electrode and MIG weld metals of improved strength and toughness have been developed, and work to develop an all- position technique for depositing MIG filler metals is progressing on schedule.
Descriptors:
- *WELDMENTS
- *SUBMARINE HULLS
- CORROSION
- STRUCTURAL PROPERTIES
- LOADS(FORCES)
- TOUGHNESS
- ELECTRODES
- CASTING
- CHEMICAL ANALYSIS
- THERMAL JOINING
- VANADIUM ALLOYS
- MANGANESE ALLOYS
- CHROMIUM ALLOYS
- MATERIAL FORMING
- MOLYBDENUM ALLOYS
- WELDING
- NICKEL ALLOYS
- FATIGUE(MECHANICS)
- MELTING
- WELDS
- STEEL
- FRACTURE(MECHANICS)
- FORGING
Subject Categories:
- Couplers, Fasteners and Joints
- Submarine Engineering