ASTM E140-07 PDF

ASTM E – Free download as PDF File .pdf), Text File .txt) or read online permitted without license from IHS Not for Resale, 05/24/ MDT. This standard is issued under the fixed designation E; the number 1 These conversion tables are under the jurisdiction of ASTM. Buy ASTM E HARDNESS CONVERSION TABLES FOR METALS RELATIONSHIP AMONG BRINELL HARDNESS, VICKERS.

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Originally approved in NOTE 2—The use of hardness scales for hardness values shown in parentheses is not recommended since they are beyond the ranges recommended for accuracy.

These hardness conversion relationships are intended to apply particularly to the following: Therefore, the user is cautioned to consider these differences and to keep in mind the approximate nature of these conversions when applying them to the results of tests using tungsten carbide balls.

Since all converted hardness values must be considered approximate, however, all converted Rockwell e140-0 numbers shall be rounded to the nearest whole number in accordance with Practice E This standard has been approved for use by agencies of the Department of Defense.

A number in parentheses indicates the year of last reapproval. Your comments are invited either for revision of this standard or for additional standards and should be addressed to Satm International Headquarters.

NOTE 2—Hardness conversion values for other metals based on comparative test on similar materials having similar mechanical properties will be added awtm this standard as the need arises. Even in the case of a table established for a single material, such as the table for cartridge brass, some error is involved depending on composition and methods of processing. Appendix X3 contains equations converting determined hardness scale numbers e140-007 Vickers hardness numbers for nickel and high-nickel alloys.

Hardness Converter ASTM E140-07 ISO 18265:2003 | Trelleborg

Current edition approved April 1, Each type of hardness test is subject to certain errors, but if precautions are carefully observed, the reliability of hardness readings made on instruments of the indentation type will be found comparable. C The Brinell hardness numbers in parentheses are outside the range recommended for Brinell hardness testing in 8. Such values are shown for comparative purposes only, where comparisons may be desired and the recommended machine and scale are not available.

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These hardness conversion relationships are intended to apply particularly to the following: Since all converted hardness values must be considered approximate, however, all converted hardness numbers shall be rounded in accordance with Practice E Appendix X7 contains equations converting determined hardness scale numbers to Vickers hardness numbers for copper, numbers to inclusive. It is recommended that hardness conversions be applied primarily to values such as specication limits, which are established by agreement or mandate, and that the conversion of test data be avoided whenever possible.

This standard has been approved for use by agencies of the Department of Defense. Last previous edition approved in as E — 02e1. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

ASTM E140-07

B Appendix X7 contains asfm converting determined hardness scale numbers to Vickers hardness numbers for copper, numbers to inclusive. This is because conversions can be affected by several factors, including the material alloy, grain structure, heat treatment, etc.

Differences in sensitivity within the range of a given hardness scale for example, Rockwell B may be greater than between two different scales or types of instruments. Due to inherent inaccuracies in the conversion process, the converted number should be rounded to the nearest whole number in accordance with Practice E While annealed metals are being progressively cold worked, the indentation contours pass through a “at” stage in which the lip of the indentation is neither round nor sharply ridged.

Current edition approved Jan. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

These hardness conversion relationships are intended to apply particularly to the following: It is necessary to base hardness conversions on comparative tests of similar materials that also have very similar mechanical properties.

Types,L, L,and Appendix X6 contains equations converting determined hardness numbers to Rockwell C and Rockwell B hardness numbers for austenitic stainless steel sheet. The equations given in Annex A1- Annex A9 were developed from the data in Tables 1 to 9, respectively. An annealed metal of high capacity for strain hardening will harden much more in the test than will a cold-worked metal.

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Signicance and Use 6.

Calaméo – ASTM E

F Scale, kgf in. For example, currently both the Rockwell and Brinell hardness standards Test MethodE10 and E18, respectively allow or require the use of tungsten carbide ball indenters; however, all of the ball scale Rockwell hardness tests HRB, HR30T, etc. Ball HR W Appendix X5 contains an equation converting determined Brinell e10-07 numbers to Rockwell B hardness numbers for austenitic steel plate in the annealed condition.

Indentation hardness is not a single fundamental property but a combination of properties, and the contribution of each to the hardness number varies with the type of e14-07.

Your comments will receive careful consideration at a meeting ast the responsible technical committee, which you may attend. Each type of hardness test is subject to certain errors, but if precautions are carefully observed, the reliability of hardness readings made on instruments of the indentation type will be found comparable. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Appendix X2 contains equations converting determined hardness numbers to Rockwell B hardness numbers for non-austenitic steels. The conversion values, whether from the tables or calculated from the equations, aastm only approximate and may be inaccurate e14-07 specific application.

Active view current version of standard Translated Standard: Apparatus and Reference Standards 4. Test coupon thicknesses ranged from approximately 0.

D Ten-millimetre tungsten carbide ball. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Such values are shown for comparative purposes only, where comparisons may be desired and the recommended machine and scale are not available. For example, an annealed iron and a cold-rolled aluminum alloy may have hardnesses of 71 and 72 HR 15T, adtm.

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