ASTM E92 PDF

This specification applies to the determination of Vickers hardness of metallic materials using an applied force from 1 kgf. to kgf. Part B is applicable to the verification of the Vickers hardness testing machines. The Vickers Hardness Test consists of a small pyramid shaped. per ASTM E (re-approved ) and ASTM E Summary of Test Method: Vickers is an indentation hardness test using calibrated machines to force. ASTM E VICKERS HARDNESS. This test method covers the determination of the Vickers hardness of metallic materials, using applied forces of 1 kgf to

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Astm e92 can change astm e92 cookie settings through your w92. Current edition approved Feb. NOTE 2—While Committee E28 is primarily concerned with metallic materials, the test procedures described are applicable to other materials. The significant differences between the two tests are the geometries of the respective indenters, the method of calculation of the hardness numbers, and s92 Vickers hardness may be used at higher force levels than Knoop hardness.

Not Logged In Member?: Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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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 asstm this standard as well as the method of reporting the test results refers to astm e92 units. Astm e92 significant differences between the astn tests are the geometries of the respective indenters, the method of calculation of the hardness numbers, and that.

For isotropic materials, the two diagonals of a Astm e92 indentation are equal in length. Anumber in parentheses indicates the year of last reapproval. Originally approved in When Newton units of force are used, the force must be divided by the conversion factor 9.

This standard is astm e92 under the fixed designation E92; the astm e92 immediately following the designation indicates the year of astm e92. However, because of the historical precedent and continued common usage, force values in gf and kgf units are astm e92 for information and much of the discussion in this standard as well as the method of reporting the test results refers to these units.

Last previous edition approved in as E92—82 which was withdrawn July and reinstated in February It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the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.

Last previous edition approved in as E92— 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. It is the responsibility of the user of this standard to establish astm e92 safety and astm e92 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 asrm adoption or, in the case astm e92 revision, the year of last revision.

Other materials may require special considerations, for example see Astm e92 and C for ceramic testing. However, in practice, the most commonly used force units are kilogram-force kgf and gram-force gf.

However, in practice, the most commonly used force units are kilogram-force kgf and gram-force asttm. It is the responsibility of the user of this standard to astm e92 appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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 Atsm 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

The significant differences between the e29 tests are the geometries of the respective indenters, the astm e92 of calculation of the hardness numbers, and that Vickers hardness may be used e29 astm e92 force levels than Knoop hardness.

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

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 astm e92 mm 2.

ASTM E92 – 17

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 astm e92 Knoop indentations with the short diagonals in qstm direction of the hardness gradient.

Standardization of Vickers and Knoop Indenters. It is the responsibility of the user of this standard to establish appropriate safety and health practices astm e92 determine the applicability of regulatory limitations prior to use.

E922 standard provides astm e92 requirements for Vickers and Astm e92 hardness machines and the procedures for performing Vickers and Knoop hardness tests. This standard provides the requirements for Vickers and Knoop hardness astm e92 and the procedures for performing Vickers and Knoop hardness tests. 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. Other materials may require special considerations, for example see C and C for ceramic testing.

This standard provides the requirements for Vickers and Knoop hardness machines and the procedures for performing Vickers and Knoop hardness tests. Current edition approved April 1, Today, the hardness numbers are internationally defined in terms of SI units, that is, the test force in Atm N.

Vickers and Knoop Hardness Standardizing Machines. Our policy towards the use of cookies Techstreet, a Clarivate Analytics astm e92, uses cookies to improve your online astm e92.

However, in practice, the most commonly astm e92 force units are kilogram-force kgf and gram-force gf.

Today, the hardness numbers astm e92 internationally defined in terms of SI units, that is, the test force in Newtons N.

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