ASTM E92 PDF

ASTM E92 PDF

This standard is issued under the fixed designation E92; the number immediately 1 These test methods are under the jurisdiction of ASTM Committee E28 on. Astm e92 Vickers Hardness of Matallic Materials – Free download as PDF File . pdf), Text File .txt) or read online for free. ASTM E – Vickers Hardness of Metallic Materials(1) – Download as PDF File .pdf), Text File .txt) or read online.

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However, because of the historical precedent and continued common usage, force values in gf and kgf units are provided for information and much of the discussion in this standard as well as the method of reporting the test results refers to these units.

This standard is issued under the fixed designation E92; the number immediately following the designation indicates the year of original. This standard is not included in any packages. For isotropic materials, the two diagonals of a Vickers indentation are equal in length. 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.

Last previous edition approved in as E92— Subscription pricing is determined by: Other materials may require special considerations, for example see C and C for ceramic testing.

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. You may delete a document from your Alert Profile at any time.

Standards Subsctiption may be the perfect solution. The significant differences between the two tests are the geometries of the respective indenters, the method of calculation of the hardness numbers, and that Vickers hardness may be used at higher force levels than Knoop hardness.

While Committee E28 is primarily concerned with metallic materials, the test procedures described are applicable to other materials. This standard has been approved for use by agencies of the U.

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NOTE 1—The Vickers and Knoop hardness numbers were originally defined in terms of the test force in kilogram-force kgf and the surface area or projected area in millimetres squared mm 2. Current edition approved April 1, 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. Recommendations for microindentation testing can be found in Test Method E This standard is also available to be included in Standards Subscriptions.

This standard provides the requirements for Vickers and Knoop hardness machines and the procedures for performing Vickers and Knoop hardness tests. Today, the hardness numbers are internationally defined in terms of SI units, that is, the test force in Newtons N.

ASTM E92 – 17

Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. When Newton units of force are used, the force must be divided by the conversion factor 9.

Vickers and Knoop Hardness Standardizing Machines. Microindentation hardness tests also allow specific phases or constituents and regions or gradients too small for macroindentation hardness testing to be evaluated. The significant differences between the two tests are the geometries of the respective indenters, the method of f92 of the hardness numbers, and that Vickers hardness may be used at higher force levels than Knoop hardness.

Anumber in parentheses indicates the year of last reapproval. When Newton units of force are used, the force must be e992 by the conversion factor 9.

ASTM E92 – 17 Standard Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials

As satm voice of the U. Hence, the Knoop hardness test is very useful for evaluating hardness gradients since Knoop indentations can be made closer together than Vickers indentations by orienting the Knoop indentations with the short diagonals in the direction of the hardness gradient.

Proceed to Checkout Continue Shopping. Anumber in parentheses indicates the year of last reapproval. Historical Version astk – view previous versions of standard. Hardness, adtm empirical in nature, can be correlated to tensile strength for many metals, and is an indicator of wear resistance and ductility. We have no amendments or corrections for this standard.

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Other d92 may require special considerations, for example see C and C for ceramic testing. However, because of the historical precedent and continued common usage, force values in gf and kgf units are provided for information and much of the discussion in this standard as well as the method of reporting the test results refers to these units.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM E92 – 17 – Standard Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials

However, in practice, the most commonly used force units are kilogram-force kgf and gram-force gf. If the document is revised or amended, you will awtm notified by email. However, in practice, the most commonly used force units are kilogram-force kgf and gram-force gf. This standard provides the requirements for Vickers and Knoop hardness machines and the procedures for performing Vickers and Knoop hardness tests.

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NOTE 2—While Committee E28 is primarily concerned with metallic materials, the test procedures described are applicable to other materials. However, because of the historical precedent and continued common usage, force values in gf and kgf units are provided for information and much of the discussion in this standard as e9 as the method of reporting the test results refers to these units.

Your Alert Profile lists the documents that will be monitored. Please first verify your email before subscribing to alerts. Last previous edition approved in as E92—82 which was withdrawn July and reinstated in February Standardization of Vickers and Knoop Indenters.