ASTM A561-71(1999)

Standard Recommended Practice for Macrotech Testing of Tool Steel Bars

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Summary

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.

Technical characteristics

Publisher	American Society for Testing and Materials (ASTM International)
Publication Date	01/01/1971
Confirmation Date	09/10/1999
Collection
Page Count	4
Themes	Steel bars and rods
EAN	---
ISBN	---
Weight (in grams)	---