Standard Historical Last Updated: Aug 16, 2017 Track Document
ASTM A561-71(1999)

Standard Recommended Practice for Macrotech Testing of Tool Steel Bars

Standard Recommended Practice for Macrotech Testing of Tool Steel Bars A0561-71R99 ASTM|A0561-71R99|en-US Standard Recommended Practice for Macrotech Testing of Tool Steel Bars Standard new BOS Vol. 01.05 Committee A01
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Scope

1.1 This recommended practice for macroetch testing has been found to be a useful and reliable method for evaluating the quality of tool steel bars. It is used as a quality control and inspection test to reveal by deep acid etching the macrostructure in specimens cut from bars and to show the presence of such conditions as pipe, cracks, porosity, segregation, or foreign material. The etched surface is generally examined visually, but magnification up to about 10X is occasionally employed.

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Details
Book of Standards Volume: 01.05
Developed by Subcommittee: A01.29
Pages: 4
DOI: 10.1520/A0561-71R99
ICS Code: 77.140.60