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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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.

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. Link to Active This link will always route to the current Active version of the standard.

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

NOTE 2—While Committee E28 is primarily concerned with metallic materials, the test procedures described are applicable to other materials. You can atm and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.

You may delete a document from your Alert Profile at any time. 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. Subscription pricing is determined by: Today, the hardness numbers are internationally defined in terms of SI units, that is, the test force in Newtons N. 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.

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This rise in hardness number with lower test forces is often more significant when testing higher hardness materials, and is increasingly asm 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.

Other materials may require special considerations, for example see C and C for ceramic testing.

Originally approved in Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. 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 zstm the geometries of the respective indenters, the method of calculation of the hardness numbers, and that Vickers hardness may aatm used at higher force levels than Knoop hardness.

This standard is not included in any packages. Historical Version s – view previous versions of standard.

However, because of the historical precedent and continued qstm 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.

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. d92

ASTM E92 – 17

If the document is revised or amended, you will be notified by email. Referenced Documents purchase separately The documents listed below are e2 within the subject standard but are not provided as part of the standard. For isotropic materials, the two diagonals of a Vickers indentation are equal in length.

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ASTM E92 – VICKERS HARDNESS

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

Other materials may require special considerations, for example see C and C for ceramic testing.

Already Subscribed to this document. When Newton units of force are used, the force must be divided by the conversion factor 9. Today, the hardness numbers wstm internationally defined in terms of SI units, that is, the test force in Newtons N.

It asym 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. Proceed to Checkout Continue Shopping.

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. Anumber in parentheses indicates the year of last reapproval.

Standards Subsctiption may be the perfect solution. The Vickers and Knoop hardness numbers were originally defined in terms of the test 9e2 in kilogram-force kgf and the surface area or projected area in millimetres squared mm 2. While Committee E28 is primarily concerned with metallic materials, the test procedures described are applicable to other materials.