Correlation Of Tensile Properties Of Steel Castings And Material Imperfections As Determined By Radiography

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Report Number: WADD TR 60-450
Author(s): Mattek, L. J., Woodward, R. D.
Corporate Author(s): General Dynamics/Convair
Laboratory: Materials Central
Date of Publication: 1961-02
Pages: 323
Contract: AF 33(616)-6622
DoD Project: 7360
DoD Task: 73606
Identifier: AD0264222

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". 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.

Provenance: Lockheed Martin Missiles & Fire Control

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