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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Originally approved in 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.

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

Last previous edition approved in as E92—82 which was withdrawn July and reinstated in February It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the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

While Committee E28 is primarily concerned with metallic materials, the test procedures described are applicable to other materials. Other materials may require special considerations, for example see C and C for ceramic testing. This standard is issued under the fixed designation E92; the number immediately following the designation indicates the year of original. 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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Need more than one copy? 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. Originally approved in 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 not included in any packages.

Already Subscribed to this document. Standardization of Vickers and Knoop Indenters. 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 E《金属材料维氏及努氏硬度标准试验方法》美国标准 (英文版)

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. This standard provides the requirements for Vickers and Knoop hardness machines and the procedures for performing Vickers and Knoop hardness tests. 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.

As the voice of the U. 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 divided by the conversion factor 9. 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.

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ASTM E92 – 17

This standard is also available to be included in Standards Subscriptions. You may delete a document from your Alert Profile at any time. However, because of the historical precedent and continued common usage, force values in gf and kgf units are provided asfm information and much of the discussion in this standard as well as the method of reporting the test results refers to these units.

Subscription pricing atm determined by: Historical Version s – view previous versions of standard. 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. Please first verify your email before subscribing to alerts.

Vickers and Knoop Hardness Standardizing Machines. NOTE 2—While Committee E28 is primarily concerned with metallic materials, the test procedures described are applicable to other materials.

Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. 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.

This standard has been approved for use by agencies of the E29.

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

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Last previous edition approved in as E92— 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.

Today, the hardness numbers are internationally defined in terms of SI units, that is, the test force in Newtons N. Your Alert Profile lists the documents that will be monitored.

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.

Proceed to Checkout Continue Shopping. Recommendations for microindentation testing can be found in Test Method E Anumber in parentheses indicates the year of last reapproval. This standard has been approved for use by agencies of the U.