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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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.

When Newton units of force are used, the force must be divided by the conversion factor 9. Link to Active This link will always route to the current Active version of the standard. Today, the hardness numbers are internationally defined in terms of SI units, that is, the test force in Newtons N. Please first verify your email before subscribing to alerts. Standards Subsctiption may be the perfect solution. We have no amendments or corrections for this standard.

ASTM E92 – 17

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. 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.

When Newton units of force are used, the force must be divided by the conversion factor 9. This standard provides the requirements for Vickers and Knoop hardness machines and the procedures for performing Vickers and Knoop hardness tests.

Originally approved in Referenced Documents purchase separately The documents listed below are referenced within sstm subject standard but are not provided as asm of the standard. Please first log in with a verified email before subscribing to alerts. As the voice of the U. This standard is also available to be included in Standards Subscriptions.

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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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Hardness, although empirical in nature, can be correlated to tensile strength for many metals, and is an indicator of wear resistance and ductility. The significant differences between the two tests are the geometries of the respective indenters, the method of calculation of the hardness numbers, and that.

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

Last previous edition approved in as E92—82 astmm was withdrawn July and reinstated in February Standardization of Vickers and Knoop Indenters. Today, the hardness numbers are internationally defined in terms of SI units, that is, the test force in Newtons N. When Newton units of force are used, the force must be divided by the conversion factor 9.

If the document is revised or amended, you will be notified by email. Anumber in parentheses indicates the year of last reapproval. 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. Anumber in parentheses indicates the year of last reapproval.

Your Alert Profile lists the sstm that will be monitored. Proceed to Checkout Continue Shopping. 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. Other materials may require special considerations, for example see C and C for ceramic testing. This standard has been approved for use by agencies of the U.

NOTE 1—The Vickers and Knoop hardness numbers were originally defined in terms of the test force in kilogram-force kgf and the surface zstm or projected area in millimetres squared mm 2. This standard is not included in any packages. However, in practice, the most commonly used force units are kilogram-force kgf and gram-force gf.

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.

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Microindentation hardness tests also allow specific phases or constituents and regions or gradients too small for macroindentation hardness testing to be evaluated. 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.

Historical Version s – view previous versions of standard. NOTE 2—While Committee E28 is primarily concerned with metallic materials, the test procedures described are applicable to other materials. Already Subscribed to this document.

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

This standard is asgm under the fixed designation E92; the number immediately following the designation indicates the year of original. However, in practice, the most commonly used force units are kilogram-force kgf and gram-force gf. 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.

Last asstm edition approved in as E92— Current edition approved April 1, Current edition approved Feb.

For isotropic materials, the two diagonals of a Vickers r92 are equal in length. Other materials may require special considerations, for example see C and C for ceramic testing. However, because of the historical precedent and continued common usage, force 9e2 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.

Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. 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 Vickers hardness may be used at higher force s92 than Knoop hardness. Recommendations for microindentation testing can be found in Test Method E