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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Subscription pricing is determined by: Recommendations for microindentation testing can be found in Test Method E This standard is issued under the fixed designation E92; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

Anumber in parentheses indicates the year of last reapproval. Add to Alert PDF.

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. Other materials may require special considerations, for example see C and C for ceramic testing. For isotropic materials, the two diagonals of a Vickers indentation are equal in length. Vickers and Knoop Hardness Standardizing Machines. This rise in hardness number with lower test forces is often more significant when testing higher hardness materials, and is increasingly more significant when using test forces below 50 gf see Test Method E This standard provides the requirements for Vickers and Knoop hardness machines and the procedures for performing Vickers and Knoop hardness tests.

Originally approved in The significant differences between the two tests are the geometries of the respective indenters, the method of calculation of the hardness numbers, and that.

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. This standard has been approved for use by agencies of the U.

ASTM E92 – 17

It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability aetm regulatory limitations prior asttm use. This standard provides the requirements xstm Vickers and Knoop hardness machines and the procedures for performing Vickers and Knoop hardness tests. This standard has been approved for use by agencies of the U.

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. 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.

Hardness, although empirical in nature, can be correlated to tensile strength for many metals, and is an indicator of wear resistance and ductility. However, in practice, the most commonly used force units are kilogram-force kgf and gram-force gf. When Newton units of force are used, the force must be satm by the conversion factor 9.

You may delete a document from your Alert Profile at any time. NOTE 2—While Committee E28 is primarily concerned with metallic materials, the test procedures described are applicable to other materials. We asfm no amendments or corrections for this standard.

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. 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.

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.

ASTM E92 – 82() Standard Test Method for Vickers Hardness of Metallic Materials

Last previous edition approved in as E92— Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as asfm of the standard.

Already Subscribed to this document. 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. However, in practice, the most commonly used force units are kilogram-force kgf and gram-force gf.

However, in e29, the most commonly used force units are kilogram-force kgf and gram-force gf.

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.