Manufacturing Methods, and Physical Properties of Directionally Solidified 48 in. x 60 in. x 4 in. and 5 in. Thick Cast Steel Plates.

Abstract

The work covers the details of production methods used in producing eight cast steel plates 48 in. x 60 in. x 5 in. and 6 in. thick. Steel for this work is a Cr - Mo composition of .28% C; 2.50% Cr; .5% Mo. Casting technique for the rapid unidirectionally solidified section employed a 48 in. x 60 in. x 7 in. thickness cast iron chill in the drag with a 48 in. x 60 in. x 3 in. thickness exothermic core on the cope surface. The plates were water quenched and tempered to a hardness level of 320 - 370 BHN. Foundry procedure, heat treatment, and production processing are reported in detail. Physical test values of tensile and impact properties and the radiographic inspection results are reported. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1970
Accession Number
AD0716368

Entities

People

  • John R. Patton

Tags

DTIC Thesaurus Topics

  • Engineering
  • Hardness
  • Heat Treatment
  • Inspection
  • Manufacturing
  • Physical Properties
  • Production
  • Production Engineering
  • Production Management Methods
  • Thickness

Fields of Study

  • Materials science

Readers

  • Metallurgy