AN INVESTIGATION OF THE INFLUENCE OF DEOXIDATION AND CHEMICAL COMPOSITION ON NOTCHED-BAR PROPERTIES OF SEMIKILLED SHIP STEEL

The data presented in this paper show that 200-pound semikilled laboratory heats can be made with ample reproducibility for use in studying the influence of chemical composition and deoxidation upon the transition-temperature characteristics of ABS Class A and Class B plate steels. The transition temperature of steels of the Class A and Class B types was found to be progressively raised, and to an appreciable extent, by increasing the carbon phosphorus, and vanadium contents within the limits studied in this investigation. Limited data indicated that increased sulphur did not raise the transition temperature but possibly lowered it. In the range in which sulphur occurs in commercial steels, it would not be expected to have a significant effect. In order to establish definitely the effect of silicon content, more data are needed. The transition temperature was definitly lowered by increasing the manganese content in the range covered in this investigation. The transition temperature was also lowered by decreasing the finishing temperature of the hot-rolled plate, the effect being quite pronounced. (Author)

  • Supplemental Notes:
    • Prepared in cooperation with NRC, Contract NObs-50148.
  • Corporate Authors:

    Lessells and Associates, Incorporated

    Boston, MA  United States 
  • Authors:
    • Banta, H M
    • Frazier, R H
    • Lorig, C H
  • Publication Date: 1952-6-27

Media Info

  • Pagination: 99 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00327684
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: SSC- 49 Final Rpt., PR-1
  • Contract Numbers: NOBS-50020, NOBS-53239
  • Files: TRIS
  • Created Date: Feb 18 1981 12:00AM