A REVIEW OF THE INFLUENCE OF COMPOSITION AND DEOXIDATION ON THE PROPERTIES OF SHIP PLATE STEELS

The purpose of the project was to study the influence of chemical composition and deoxidation on the transition temperature and tensile properties of 200-pound laboratory melts of semikilled ship steel rolled into 3/4-inch plates. Two base compositions were investigated--one, a 0.25% C and 0.45% Mn type, similar to ABS Class A; and the other, a 0.21%C and 0.75% Mn type, similar to ABS Class B. The principal deoxidizing elements studied were silicon and aluminum. Some of the experimental heats were made with deoxidizers added in amounts above 0.10% Si or 0.010% Al. Such heats would be classified as killed rather than semikilled. Some of these conformed to the base compositions of ABS Class C steel, which is a 0.15 to 0.30% Si type made to fine-grained practice (usually containing about 0.03% acid soluble aluminum). As the project approached completion, it was apparent that certain relationships had become reasonably well established. This, coupled with the interest expressed by the Ship Structure Committee in exploring the possibility of using steels of lower carbon content and hence lower tensile strength to obtain lower transition temperature, prompted the Committee on Ship Steel to request the Project SR-110 Advisory Committee to review the results of the investigation and prepare this interpretive report.

  • Corporate Authors:

    Battelle Memorial Institute

    505 King Avenue
    Columbus, OH  United States  43201

    Ship Structure Committee

    National Academy of Science, 2101 Constitution Avenue, NW
    Washington, DC  United States  20418
  • Publication Date: 1953-11-16

Media Info

  • Features: References;
  • Pagination: 35 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00331016
  • Record Type: Publication
  • Source Agency: Ship Structure Committee
  • Report/Paper Numbers: SSC- 73
  • Contract Numbers: NObs-50148
  • Files: TRIS
  • Created Date: May 21 1981 12:00AM