ASTM A997 - 08(2012)

    Standard Practice for Investment Castings, Surface Acceptance Standards, Visual Examination

    Active Standard ASTM A997 | Developed by Subcommittee: A01.18

    Book of Standards Volume: 01.02


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    Abstract

    This practice covers the acceptance criteria for surface inspection of investment castings through visual examination. The material shall conform to Levels II, III, and IV acceptance criteria for features of surface pits, positive metal, parting line and ejector pin marks, gate height, and surface roughness. The material shall be free of any linear discontinuity.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This practice covers the acceptance criteria for surface inspection of investment castings by visual examination.

    1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    ICS Code

    ICS Number Code 77.040.20 (Non-destructive testing of metals)

    UNSPSC Code

    UNSPSC Code 31101903(Steel investment casting)


    DOI: 10.1520/A0997-08R12

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