ASTM-B724 › Historical Revision Information
Standard Test Method for Indentation Hardness of Aluminum Alloys by Means of a Newage, Portable, Non-Caliper-Type Instrument (Withdrawn 2013)
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Scope
1.1 This test method covers indentation hardness testing of aluminum alloys using a Newage, portable, non-caliper-type, hardness instrument which provides readout values numerically equivalent to Rockwell B-scale as determined by Test Methods E 18.
Note 1This is a comparative Rockwell B test and does not provide an actual Rockwell B test value. HRBN, the values obtained from the Newage instrument, are numerically equivalent to Rockwell B values, but do not represent an actual Rockwell B test in accordance with Test Methods E 18.
1.2 This test method measures indentation hardness of heat-treatable aluminum alloys having a hardness from 30 to 100 HRBN, a thickness greater than 1.50 mm (0.060 in.), and pieces too large to be tested by a caliper type instrument.
Note 2This test method covers two instruments (one analog and one digital) which operate differently. Refer to the manufacturer's instruction for proper operation.
1.3 The flat surface size of the area being tested must be compatible with the instrument support area and the material must not deflect during the test.
1.4 The values stated in SI units are the standard. The values given in parentheses are for information only.
Keywords
newage portable instrument; ICS Number Code 77.120.10 (Aluminium and aluminium alloys)
To find similar documents by ASTM Volume:
02.02 (Aluminum and Magnesium Alloys)
To find similar documents by classification:
77.120.10 (Aluminium and aluminium alloys)
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Document Number
ASTM-B724
Revision Level
WITHDRAWN
Status
Cancelled
Modification Type
Revision
Publication Date
Oct. 15, 2013
Document Type
Test Method
Committee Number
B07.05