AS 1817.1-2003

Specifies the method for the Vickers hardness test for three ranges of test force for metallic materials. This Standard is an adoption with national modifications and is reproduced from ISO 6507-1:1997.

This part of ISO 6507 specifies the method of Vickers hardness test for the three different ranges of test force for metallic materials (see table 1).The Vickers hardness test is specified in this part of ISO 6507 for lengths of indentation diagonals between 0,020 mm and 1,400 mm.The force values in this part of ISO 6507 were calculated from kilogram force values. They wereintroduced before the SI-system was adopted. It was decided to keep the values based on the oldunits for this edition, but for the next revision it will be necessary to consider the advantage ofintroducing rounded values of test force and the consequence on the hardness scales.NOTE — In general, decreasing the test force increases the scatter of results of the measurements. This is particularly true for low-force Vickers hardness tests and Vickers microhardness tests where the principallimitation will arise in the measurement of the diagonals of the indentation. For Vickers microhardness, the accuracy of determination of the mean diagonal length is unlikely to be better than ± 0,001 mm (see annex E).For specific materials and/or products, particular International Standards exist.

First published in part as AS B106-1954 (being endorsement of BS 427-1931 with amendments) Second edition AS B106-1957.
Revised and redesignated AS B106.1-1962.
AS B106.2 first published 1965.
AS B106.1-1962 revised and redesignated AS 1817.1-1976.
AS B106.2-1965 revised and redesignated AS 1817.2-1976.
AS 1817.1-1976 and AS 1817.2-1976 revised, amalgamated and redesignated AS 1817-1991.
AS 1817-1991 revised and redesignated in part as AS 1817.1-2003.