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.

Author: Shakasa Taugul
Country: Namibia
Language: English (Spanish)
Genre: History
Published (Last): 5 April 2018
Pages: 248
PDF File Size: 12.89 Mb
ePub File Size: 1.71 Mb
ISBN: 943-6-45619-745-8
Downloads: 88394
Price: Free* [*Free Regsitration Required]
Uploader: Gar

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

Originally approved in This standard is not included in any packages. If the document is revised or amended, you will be notified by email. 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.

Your Alert Profile lists the documents that will be monitored. Standardization of Vickers and Knoop Indenters. Anumber in parentheses indicates the year of last reapproval.

NOTE 2—While Committee E28 is primarily concerned with metallic materials, the test procedures described are applicable to other materials.

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

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. 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. 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 atm the direction of the hardness gradient.

Add to Alert PDF.

The significant differences between the two tests are the geometries of the respective indenters, the method of calculation of the hardness numbers, and that. Please first verify your email before subscribing to alerts. 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.

  AUDCO PLUG VALVE PDF

Proceed to Checkout Continue Shopping. 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 f92 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 asrm to these units.

When Newton units of force are ashm, the force must be divided by the conversion factor 9. Current edition approved April 1, This rise in hardness number with lower test forces is often more significant when testing higher hardness materials, and is satm more significant when using test forces below 50 gf see 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.

It is the responsibility of the user of this standard to establish e992 safety and health practices and determine the applicability of regulatory limitations prior to use. When Newton units of force are used, the force must be divided by the conversion factor 9.

Historical Version s – view previous versions of standard. When Newton units of force are used, the force must be divided by the conversion factor 9. 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 asym units.

You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. As the voice of the U. This standard provides the f92 for Vickers and Knoop hardness machines and the procedures for performing Vickers and Knoop hardness tests. 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.

  ESTADO JUDIO THEODOR HERZL PDF

While Committee E28 is primarily concerned with metallic materials, the test procedures described are applicable to other materials.

ASTM E92 – VICKERS HARDNESS

Subscription pricing is determined by: However, in practice, the most commonly used force units are kilogram-force kgf and gram-force gf. Last previous edition approved in as E92— Other materials may require special considerations, for example see C and C for ceramic testing.

Hardness, although empirical in nature, can be correlated to tensile strength for many metals, and is an indicator of wear resistance and axtm.

However, in practice, the most commonly used force units are kilogram-force kgf and gram-force gf. Today, the hardness numbers are internationally defined in terms of F92 units, that is, the test force in Newtons N.

ASTM E92 – 17

Ashm may delete a document from your Alert Profile at any time. Last previous edition approved in as E92—82 which was withdrawn July and reinstated in February NOTE 2—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.

NOTE 1—The Vickers and Knoop hardness numbers were originally asstm in terms of the test force in kilogram-force kgf and the surface area or projected area in millimetres squared mm 2. Need more than one copy?

Recommendations for microindentation testing can be found in Test Method E 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 r92 U.