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ASTM B647-84(2006)

Historical Reaffirmation

Standard Test Method for Indentation Hardness of Aluminum Alloys by Means of a Webster Hardness Gage

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1.1 This test method covers the determination of indentation hardness of aluminum alloys with a Webster hardness gage, Model B.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

Note 1

Two other models, A and B-75, are in use, but are not covered in this test method. Model A does not provide numerical values of hardness and Model B-75 covers only a part of the range of interest for aluminum alloys.

This standard does not purport to address all of the safety concerns, if any, associated with its use. 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 Webster hardness gage is portable and therefore useful for in situ determination of the hardness of fabricated parts and individual test specimens for production control purposes. It is not as sensitive as Rockwell or Brinell hardness machines; see 10.2.

This test method should be used only as cited in applicable material specifications.


FIG. 1 Webster Hardness Gage, Model B

SDO ASTM: ASTM International
Document Number B647
Publication Date Sept. 1, 2006
Language en - English
Page Count 3
Revision Level 84(2006)
Supercedes
Committee B07.05
Publish Date Document Id Type View
April 1, 2023 B0647-23 Revision
Dec. 1, 2010 B0647-10 Revision
May 1, 2016 B0647-10R16 Reaffirmation
Sept. 1, 2006 B0647-84R06 Reaffirmation
Jan. 1, 2000 B0647-84R00 Reaffirmation