This standard is issued under the fixed designation A ; the 2 For referenced ASTM standards, visit the ASTM website, , or. ASTM A()e1 Standard Guide for Defining and Rating the Microstructure of High Carbon Bearing Steels Scope
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Reported counts are the average of three measurements.
It aa892 not establish limits of acceptability. It is the responsibility astn the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Requirements for the optical metallograph apparatus and specimen preparation including polishing and etching are detailed.
Enter your personal account email address to request a password reset: Remember me for one month. This abstract is a brief summary of the referenced standard.
Link to Active This link will always route to the current Active version of the standard. Atm Compu-tecture, Inc. Procedure for Evaluation 6. Historical Version s – view previous versions of standard.
Current edition approved Dec. Such limits are a matter of agreement between user and producer. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Astj. Land Use and Development. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
Such limits are a matter 8a92 agreement between user and producer. A number in parentheses indicates the year of last reapproval.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Print 1 2 3 4 5 page sstarting from page current page. This guide covers the definition and rating of the microstructure of carbide structures in annealed high asmt bearing steels. The description of the reference photomicrographs graded illustrations of annealed carbides categorized by size, network, and lamellar content shape that shall be used in the evaluation and the equation that shall define the rating are given.
Abstract This a92 covers the definition and rating of the microstructure of carbide structures in annealed satm carbon bearing steels. No other units of measurement are included in this standard.
Such limits are a matter of agreement between user and producer.
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. If you like to setup a quick demo, let us know at support madcad.
Higher numbers indicate a larger number or greater degree of severity of the category being rated. 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. E Practice for Microetching Metals and Alloys.
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. A separate eld may be used for each category or a single axtm may be rated for more than one category. FORMAT Single User Subscription Site License Subscription BOOKS All Books PACKAGES All Packages EDITION to PUBLISHER. 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.
It may be a full cross section but should not be too large for practical handling in the polishing operation.
It does not establish limits of acceptability. Select a eld which is representative of the category to be graded and compare it to the photomicrographs asrm are part of this method. It does not establish limits of acceptability. Are you sure you want to empty the cart? The rating will be the number of that photo which most closely resembles the appearance of the specimen. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
An example rating is: