Accession Number : AD0264222

Title :   CORRELATION OF TENSILE PROPERTIES OF STEEL CASTINGS AND MATERIAL IMPERFECTIONS AS DETERMINED BY RADIOGRAPHY.

Descriptive Note : Summary rept. for Jun 59-Jul 60 on the Chemistry and Physics of Materials,

Corporate Author : GENERAL DYNAMICS/CONVAIR SAN DIEGO CALIF

Personal Author(s) : Mattek ,L. J. ; Woodward,R. D.

Report Date : FEB 1961

Pagination or Media Count : 325

Abstract : The relationships between tensile properties of 410 stainless-steel castings and imperfections, as determined by radiography, were investigated. The purpose was to establish confidence in a system of evaluating castings by radiographic inspection. Tensile properties investigated were: tensile yield, tensile ultimate, elongation and modulus of elasticity; imperfections were: gas holes, inclusions and porosity; thicknesses were: 0.1, 0.2, 0.3, and 0.6 in. Test specimens were heat treated to a 180,000 to 200,000 psi. Statistical analysis of test results is presented. Relationships between tensile properties and size or intensity of imperfections are represented in tables and graphs. (Author)

Descriptors :   *CASTINGS, *NONDESTRUCTIVE TESTING, *STAINLESS STEEL, AIRCRAFT, DEFORMATION, ELASTIC PROPERTIES, GASES, MECHANICAL PROPERTIES, MILITARY REQUIREMENTS, POROSITY, RADIOGRAPHY, SLAGS, SPECIFICATIONS, STATISTICAL ANALYSIS, STRUCTURES, TENSILE PROPERTIES

Distribution Statement : APPROVED FOR PUBLIC RELEASE