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.

Author: Tozragore Dosida
Country: Venezuela
Language: English (Spanish)
Genre: Music
Published (Last): 10 February 2015
Pages: 440
PDF File Size: 6.97 Mb
ePub File Size: 20.33 Mb
ISBN: 298-2-87834-583-4
Downloads: 65958
Price: Free* [*Free Regsitration Required]
Uploader: Faezil

Last previous edition approved in asmt E92— Link to Active This link will always route to the current Active version of the standard. 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 ductility.

Please first verify your email before subscribing to alerts. For isotropic materials, the two diagonals of a Vickers indentation are equal in length. Historical Version sstm – view previous versions of standard. This standard has been approved for use by agencies of the U. Current edition approved Feb.

Microindentation hardness tests also allow specific phases or constituents and regions or gradients too small for macroindentation hardness testing to atsm evaluated. This standard provides the requirements for Vickers and Knoop hardness machines and the procedures for performing Vickers and Knoop hardness tests.

Your Alert Profile lists the documents astk will be monitored. 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. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. However, in practice, the most commonly used force units are kilogram-force kgf and gram-force gf.

  FABULAS PANICAS PDF

This standard provides the requirements for Vickers and Knoop hardness machines and the procedures for performing Vickers and Knoop e9 tests.

As the voice of the U. Originally approved in This standard is also available to be included in Standards Subscriptions.

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 zstm 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.

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 ashm of regulatory limitations prior to use. 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.

However, in practice, the most commonly used force units are kilogram-force kgf and gram-force gf. This standard is not included in any packages. However, because of the historical precedent and continued common usage, force values in gf and kgf units are provided for atm 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. 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 satm respective indenters, the method of calculation of the hardness numbers, and that.

Originally approved in Current edition approved April 1, 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 aatm well as the method of reporting the test results refers to these units.

When Ast units of force are used, the force must be divided by the conversion factor 9. Vickers and Knoop Hardness Standardizing Machines.

  GURPS WAR AGAINST CHTORR PDF

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)

This standard has been approved for use by agencies of the U. 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. Today, the hardness numbers are internationally defined in terms of SI units, that astn, the test force in Newtons N. 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 in the direction of the hardness gradient.

Standardization of Vickers and Knoop Indenters. NOTE 2—While Committee E28 is primarily asmt with metallic materials, the test procedures described are applicable to other materials.

ASTM E92 – 17

It is the responsibility of the user of this standard to establish ast, safety and health practices and determine the applicability of regulatory limitations prior to use. Today, the hardness numbers are internationally defined in terms of SI units, that is, the test force in Newtons N. Standards Subsctiption may be the perfect solution.

This standard is issued under the fixed designation E92; the number immediately following the designation indicates the year of original. Last previous asgm approved in as E92—82 which was withdrawn July and reinstated in February 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.